{"product_id":"g4-damp-sealer-5kg","title":"G4 Damp Sealer (5KG)","description":"\u003cdiv class=\"woo-short-description\" itemprop=\"description\"\u003e\n\n  \u003c!-- =========================================================\n       MAIN PRODUCT POSITIONING\n  ========================================================== --\u003e\n  \u003cdiv style=\"margin-bottom: 24px;\"\u003e\n    \u003ch3 style=\"margin: 0 0 10px; font-size: 21px;\"\u003e\n      G4 Damp Seal for concrete roofs and fibreglass-lined ponds\n    \u003c\/h3\u003e\n\n    \u003cp style=\"margin: 0 0 12px; font-size: 16px; line-height: 1.65;\"\u003e\n      \u003cstrong\u003e\n        G4 Damp Seal is the correct G4 product when polyester resin\n        and fibreglass will be applied over a suitable concrete or\n        rendered surface.\n      \u003c\/strong\u003e\n    \u003c\/p\u003e\n\n    \u003cp style=\"margin: 0; line-height: 1.7;\"\u003e\n      It seals porous concrete before GRP sheathing and helps prevent\n      alkali within the concrete from reacting with the polyester resin.\n      It is suitable for concrete flat roofs and concrete or rendered\n      ponds that will subsequently receive a fibreglass lining.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n\n  \u003c!-- =========================================================\n       APPLICATION BADGES\n  ========================================================== --\u003e\n  \u003cdiv style=\"\n    display: flex;\n    flex-wrap: wrap;\n    gap: 8px;\n    margin: 0 0 24px;\n  \"\u003e\n    \u003cspan style=\"\n      display: inline-block;\n      padding: 7px 12px;\n      background: #eef7e9;\n      border: 1px solid #b9d8a8;\n      border-radius: 4px;\n      color: #376d1f;\n      font-weight: 600;\n    \"\u003e\n      Concrete roof primer\n    \u003c\/span\u003e\n\n    \u003cspan style=\"\n      display: inline-block;\n      padding: 7px 12px;\n      background: #eef7e9;\n      border: 1px solid #b9d8a8;\n      border-radius: 4px;\n      color: #376d1f;\n      font-weight: 600;\n    \"\u003e\n      Fibreglass pond primer\n    \u003c\/span\u003e\n\n    \u003cspan style=\"\n      display: inline-block;\n      padding: 7px 12px;\n      background: #eef7e9;\n      border: 1px solid #b9d8a8;\n      border-radius: 4px;\n      color: #376d1f;\n      font-weight: 600;\n    \"\u003e\n      Apply before GRP\n    \u003c\/span\u003e\n  \u003c\/div\u003e\n\n\n  \u003c!-- =========================================================\n       MODERN TDS STATEMENT\n  ========================================================== --\u003e\n  \u003cdiv style=\"\n    padding: 16px 18px;\n    margin: 0 0 24px;\n    background: #f6f6f6;\n    border-left: 4px solid #4f9806;\n  \"\u003e\n    \u003cp style=\"margin: 0; line-height: 1.65;\"\u003e\n      \u003cstrong\u003eThe G4 Damp Seal technical data states:\u003c\/strong\u003e\u003cbr\u003e\n      “Sealing concrete prior to fibre glass sheathing where alkali\n      in concrete can react with resins.”\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n\n  \u003c!-- =========================================================\n       PRODUCT SELECTOR\n  ========================================================== --\u003e\n  \u003cdiv style=\"\n    border: 1px solid #d7d7d7;\n    border-radius: 6px;\n    overflow: hidden;\n    margin: 0 0 26px;\n  \"\u003e\n    \u003cdiv style=\"\n      padding: 15px 18px;\n      background: #f4f4f4;\n      border-bottom: 1px solid #d7d7d7;\n    \"\u003e\n      \u003ch3 style=\"margin: 0; font-size: 19px;\"\u003e\n        Which G4 product do I need?\n      \u003c\/h3\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 18px;\"\u003e\n\n      \u003cdiv style=\"margin-bottom: 20px;\"\u003e\n        \u003cp style=\"margin: 0 0 5px; font-size: 16px;\"\u003e\n          \u003cstrong\u003eApplying fibreglass or GRP afterwards?\u003c\/strong\u003e\n        \u003c\/p\u003e\n\n        \u003cp style=\"margin: 0; line-height: 1.65;\"\u003e\n          Use \u003cstrong\u003eG4 Damp Seal\u003c\/strong\u003e. This includes suitable\n          concrete roofs and concrete or rendered ponds that will\n          receive a polyester resin and fibreglass laminate.\n        \u003c\/p\u003e\n      \u003c\/div\u003e\n\n      \u003cdiv\u003e\n        \u003cp style=\"margin: 0 0 5px; font-size: 16px;\"\u003e\n          \u003cstrong\u003eSealing a masonry pond without fibreglass?\u003c\/strong\u003e\n        \u003c\/p\u003e\n\n        \u003cp style=\"margin: 0 0 14px; line-height: 1.65;\"\u003e\n          Use \u003cstrong\u003eG4 Pond Sealer\u003c\/strong\u003e as the finished standalone\n          pond-sealing coating.\n        \u003c\/p\u003e\n\n        \u003ca href=\"\/products\/g4-pond-sealer-2-5kg\" style=\"\n            display: inline-block;\n            padding: 10px 16px;\n            background: #222222;\n            color: #ffffff;\n            text-decoration: none;\n            border-radius: 3px;\n            font-weight: 600;\n          \"\u003e\n          Shop G4 Pond Sealer\n        \u003c\/a\u003e\n      \u003c\/div\u003e\n\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\n  \u003c!-- =========================================================\n       POND SEALER WARNING\n  ========================================================== --\u003e\n  \u003cdiv style=\"\n    padding: 16px 18px;\n    margin: 0 0 26px;\n    background: #fff3f1;\n    border: 1px solid #efb5ac;\n    border-left: 4px solid #d93b28;\n  \"\u003e\n    \u003cp style=\"\n      margin: 0;\n      line-height: 1.65;\n      color: #9f2519;\n    \"\u003e\n      \u003cstrong\u003eDo not confuse this product with G4 Pond Sealer.\u003c\/strong\u003e\u003cbr\u003e\n      G4 Pond Sealer is a standalone pond coating. Its current technical\n      data states that it is not compatible with fibreglass, so it must\n      not be used as the primer beneath a subsequent GRP laminate.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n\n  \u003c!-- =========================================================\n       MAIN USES\n  ========================================================== --\u003e\n  \u003cdiv style=\"margin-bottom: 26px;\"\u003e\n    \u003ch3 style=\"margin: 0 0 12px; font-size: 19px;\"\u003e\n      Where would I use G4 Damp Seal?\n    \u003c\/h3\u003e\n\n    \u003cul style=\"\n      margin: 0;\n      padding-left: 22px;\n      line-height: 1.85;\n    \"\u003e\n      \u003cli\u003e\n        Sealing suitable concrete flat roofs before polyester GRP sheathing\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        Preparing concrete or rendered ponds before installing a\n        fibreglass lining\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        Sealing porous concrete where alkali could react with polyester resin\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        Damp-proof sealing of suitable floors and porous surfaces\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        Preparing plug surfaces before mould production\n      \u003c\/li\u003e\n\n      \u003cli\u003e\n        Improving the bond of GRP to suitable metal surfaces\n      \u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\n\n  \u003c!-- =========================================================\n       PRODUCT DESCRIPTION\n  ========================================================== --\u003e\n  \u003cdiv style=\"margin-bottom: 26px;\"\u003e\n    \u003ch3 style=\"margin: 0 0 12px; font-size: 19px;\"\u003e\n      Product description\n    \u003c\/h3\u003e\n\n    \u003cp style=\"margin: 0 0 12px; line-height: 1.7;\"\u003e\n      G4 Damp Seal is a moisture-curing, single-part polyurethane\n      varnish for sealing damp and porous surfaces. It forms a\n      hard-wearing, non-porous coating and is particularly useful where\n      concrete is being prepared for polyester GRP sheathing.\n    \u003c\/p\u003e\n\n    \u003cp style=\"margin: 0 0 12px; line-height: 1.7;\"\u003e\n      It can also be used on plug surfaces before applying a release\n      agent and taking a mould, as release agents and polyester resins\n      do not attack the G4 coating.\n    \u003c\/p\u003e\n\n    \u003cp style=\"margin: 0; line-height: 1.7;\"\u003e\n      G4 Damp Seal may also be used to improve the bond of GRP to suitable\n      metal surfaces. It withstands temperatures up to 200°C and provides\n      good chemical resistance.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n\n  \u003c!-- =========================================================\n       COVERAGE\n  ========================================================== --\u003e\n  \u003cdiv style=\"margin: 0 0 26px;\"\u003e\n    \u003ch3 style=\"margin: 0 0 8px; font-size: 19px;\"\u003e\n      Coverage and tin-size guide\n    \u003c\/h3\u003e\n\n    \u003cp style=\"margin: 0 0 14px; line-height: 1.65;\"\u003e\n      The manufacturer gives a nominal consumption rate of approximately\n      \u003cstrong\u003e500g per m²\u003c\/strong\u003e. For most sealing purposes, three coats\n      are recommended to build a continuous surface film.\n    \u003c\/p\u003e\n\n    \u003cdiv style=\"overflow-x: auto;\"\u003e\n      \u003ctable style=\"\n        width: 100%;\n        border-collapse: collapse;\n        min-width: 440px;\n      \"\u003e\n        \u003cthead\u003e\n          \u003ctr\u003e\n            \u003cth style=\"\n              padding: 11px 12px;\n              text-align: left;\n              border: 1px solid #d7d7d7;\n              background: #f4f4f4;\n            \"\u003e\n              Tin size\n            \u003c\/th\u003e\n\n            \u003cth style=\"\n              padding: 11px 12px;\n              text-align: left;\n              border: 1px solid #d7d7d7;\n              background: #f4f4f4;\n            \"\u003e\n              Approximate three-coat coverage\n            \u003c\/th\u003e\n          \u003c\/tr\u003e\n        \u003c\/thead\u003e\n\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd style=\"\n              padding: 11px 12px;\n              border: 1px solid #d7d7d7;\n            \"\u003e\n              \u003cstrong\u003e1kg\u003c\/strong\u003e\n            \u003c\/td\u003e\n\n            \u003ctd style=\"\n              padding: 11px 12px;\n              border: 1px solid #d7d7d7;\n            \"\u003e\n              Approximately 2m²\n            \u003c\/td\u003e\n          \u003c\/tr\u003e\n\n          \u003ctr\u003e\n            \u003ctd style=\"\n              padding: 11px 12px;\n              border: 1px solid #d7d7d7;\n            \"\u003e\n              \u003cstrong\u003e2.5kg\u003c\/strong\u003e\n            \u003c\/td\u003e\n\n            \u003ctd style=\"\n              padding: 11px 12px;\n              border: 1px solid #d7d7d7;\n            \"\u003e\n              Approximately 5m²\n            \u003c\/td\u003e\n          \u003c\/tr\u003e\n\n          \u003ctr\u003e\n            \u003ctd style=\"\n              padding: 11px 12px;\n              border: 1px solid #d7d7d7;\n            \"\u003e\n              \u003cstrong\u003e5kg\u003c\/strong\u003e\n            \u003c\/td\u003e\n\n            \u003ctd style=\"\n              padding: 11px 12px;\n              border: 1px solid #d7d7d7;\n            \"\u003e\n              Approximately 10m²\n            \u003c\/td\u003e\n          \u003c\/tr\u003e\n\n          \u003ctr\u003e\n            \u003ctd style=\"\n              padding: 11px 12px;\n              border: 1px solid #d7d7d7;\n            \"\u003e\n              \u003cstrong\u003e25kg\u003c\/strong\u003e\n            \u003c\/td\u003e\n\n            \u003ctd style=\"\n              padding: 11px 12px;\n              border: 1px solid #d7d7d7;\n            \"\u003e\n              Approximately 50m²\n            \u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n\n    \u003cp style=\"\n      margin: 12px 0 0;\n      font-size: 13px;\n      line-height: 1.55;\n      color: #666666;\n    \"\u003e\n      These figures relate to the manufacturer's nominal rate for the\n      complete sealing application. Consumption will vary according to\n      the porosity, texture and condition of the substrate. Rough or\n      highly absorbent concrete may require more material.\n    \u003c\/p\u003e\n\n    \u003cp style=\"\n      margin: 9px 0 0;\n      font-size: 13px;\n      line-height: 1.55;\n      color: #666666;\n    \"\u003e\n      The modern technical data does not provide a separate coverage\n      rate specifically for a GRP bonding application over concrete.\n    \u003c\/p\u003e\n  \u003c\/div\u003e\n\n\n  \u003c!-- =========================================================\n       KEY TECHNICAL INFORMATION\n  ========================================================== --\u003e\n  \u003cdiv style=\"\n    border: 1px solid #d7d7d7;\n    border-radius: 6px;\n    overflow: hidden;\n    margin: 0 0 26px;\n  \"\u003e\n    \u003cdiv style=\"\n      padding: 15px 18px;\n      background: #f4f4f4;\n      border-bottom: 1px solid #d7d7d7;\n    \"\u003e\n      \u003ch3 style=\"margin: 0; font-size: 19px;\"\u003e\n        Key technical information\n      \u003c\/h3\u003e\n    \u003c\/div\u003e\n\n    \u003cdiv style=\"padding: 18px;\"\u003e\n      \u003ctable style=\"\n        width: 100%;\n        border-collapse: collapse;\n      \"\u003e\n        \u003ctbody\u003e\n          \u003ctr\u003e\n            \u003ctd style=\"\n              width: 38%;\n              padding: 9px 10px;\n              border-bottom: 1px solid #e5e5e5;\n              vertical-align: top;\n            \"\u003e\n              \u003cstrong\u003eApplication\u003c\/strong\u003e\n            \u003c\/td\u003e\n\n            \u003ctd style=\"\n              padding: 9px 10px;\n              border-bottom: 1px solid #e5e5e5;\n            \"\u003e\n              Brush or roller\n            \u003c\/td\u003e\n          \u003c\/tr\u003e\n\n          \u003ctr\u003e\n            \u003ctd style=\"\n              padding: 9px 10px;\n              border-bottom: 1px solid #e5e5e5;\n              vertical-align: top;\n            \"\u003e\n              \u003cstrong\u003eCoats\u003c\/strong\u003e\n            \u003c\/td\u003e\n\n            \u003ctd style=\"\n              padding: 9px 10px;\n              border-bottom: 1px solid #e5e5e5;\n            \"\u003e\n              Three coats recommended for most sealing purposes\n            \u003c\/td\u003e\n          \u003c\/tr\u003e\n\n          \u003ctr\u003e\n            \u003ctd style=\"\n              padding: 9px 10px;\n              border-bottom: 1px solid #e5e5e5;\n              vertical-align: top;\n            \"\u003e\n              \u003cstrong\u003eDrying time\u003c\/strong\u003e\n            \u003c\/td\u003e\n\n            \u003ctd style=\"\n              padding: 9px 10px;\n              border-bottom: 1px solid #e5e5e5;\n            \"\u003e\n              Approximately 60–90 minutes\n            \u003c\/td\u003e\n          \u003c\/tr\u003e\n\n          \u003ctr\u003e\n            \u003ctd style=\"\n              padding: 9px 10px;\n              border-bottom: 1px solid #e5e5e5;\n              vertical-align: top;\n            \"\u003e\n              \u003cstrong\u003eRecoat time\u003c\/strong\u003e\n            \u003c\/td\u003e\n\n            \u003ctd style=\"\n              padding: 9px 10px;\n              border-bottom: 1px solid #e5e5e5;\n            \"\u003e\n              Recoat when finger tacky and do not allow more than\n              four hours between coats\n            \u003c\/td\u003e\n          \u003c\/tr\u003e\n\n          \u003ctr\u003e\n            \u003ctd style=\"\n              padding: 9px 10px;\n              border-bottom: 1px solid #e5e5e5;\n              vertical-align: top;\n            \"\u003e\n              \u003cstrong\u003eApplication temperature\u003c\/strong\u003e\n            \u003c\/td\u003e\n\n            \u003ctd style=\"\n              padding: 9px 10px;\n              border-bottom: 1px solid #e5e5e5;\n            \"\u003e\n              Can be applied at temperatures down to 0°C\n            \u003c\/td\u003e\n          \u003c\/tr\u003e\n\n          \u003ctr\u003e\n            \u003ctd style=\"\n              padding: 9px 10px;\n              vertical-align: top;\n            \"\u003e\n              \u003cstrong\u003eClean-up\u003c\/strong\u003e\n            \u003c\/td\u003e\n\n            \u003ctd style=\"padding: 9px 10px;\"\u003e\n              Clean equipment using Rustins Cellulose Thinners.\n              Turpentine and White Spirit are unsuitable.\n            \u003c\/td\u003e\n          \u003c\/tr\u003e\n        \u003c\/tbody\u003e\n      \u003c\/table\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\n  \u003c!-- =========================================================\n       APPLICATION GUIDE SELECTOR\n  ========================================================== --\u003e\n  \u003cdiv style=\"margin: 0 0 26px;\"\u003e\n    \u003ch3 style=\"margin: 0 0 8px; font-size: 19px;\"\u003e\n      Choose your application\n    \u003c\/h3\u003e\n\n    \u003cp style=\"margin: 0 0 14px; line-height: 1.65;\"\u003e\n      Open the guide that matches the surface you are fibreglassing.\n    \u003c\/p\u003e\n\n\n    \u003c!-- =======================================================\n         ACCORDION 1: CONCRETE ROOF\n    ======================================================== --\u003e\n    \u003cdetails style=\"\n      margin: 0 0 12px;\n      border: 1px solid #d7d7d7;\n      border-radius: 6px;\n      overflow: hidden;\n      background: #ffffff;\n    \"\u003e\n      \u003csummary style=\"\n        padding: 16px 18px;\n        background: #f4f4f4;\n        cursor: pointer;\n        font-size: 17px;\n        font-weight: 700;\n        line-height: 1.4;\n      \"\u003e\n        Using G4 Damp Seal on a concrete roof\n      \u003c\/summary\u003e\n\n      \u003cdiv style=\"\n        padding: 18px;\n        border-top: 1px solid #d7d7d7;\n      \"\u003e\n        \u003cp style=\"margin: 0 0 14px; line-height: 1.7;\"\u003e\n          G4 Damp Seal can be used where a polyester GRP roofing system\n          will be applied directly over a suitable concrete substrate.\n        \u003c\/p\u003e\n\n        \u003col style=\"\n          margin: 0 0 20px;\n          padding-left: 22px;\n          line-height: 1.75;\n        \"\u003e\n          \u003cli\u003e\n            \u003cstrong\u003eInspect the concrete.\u003c\/strong\u003e\n            It must be structurally sound, bare and sufficiently porous\n            to accept the coating.\n          \u003c\/li\u003e\n\n          \u003cli\u003e\n            \u003cstrong\u003eClean and dry the surface.\u003c\/strong\u003e\n            Remove paint, existing coatings, sealers, oil, grease, dust\n            and other contamination that could interfere with adhesion.\n          \u003c\/li\u003e\n\n          \u003cli\u003e\n            \u003cstrong\u003eRepair defects before coating.\u003c\/strong\u003e\n            Repair loose, cracked, damaged or worn areas. G4 should not\n            be relied upon to fill cracks, holes or defective concrete.\n          \u003c\/li\u003e\n\n          \u003cli\u003e\n            \u003cstrong\u003eApply by brush or roller.\u003c\/strong\u003e\n            Work the product evenly into the porous surface and avoid\n            allowing it to puddle in depressions.\n          \u003c\/li\u003e\n\n          \u003cli\u003e\n            \u003cstrong\u003eFollow the selected GRP system instructions.\u003c\/strong\u003e\n            The modern G4 Damp Seal TDS confirms its use before\n            fibreglass sheathing, but it does not provide a separate\n            concrete-roof coat quantity or GRP laminating window.\n          \u003c\/li\u003e\n\n          \u003cli\u003e\n            \u003cstrong\u003eObserve any required bonding window.\u003c\/strong\u003e\n            Apply the polyester laminate in accordance with the\n            instructions supplied with the selected GRP roofing system.\n          \u003c\/li\u003e\n        \u003c\/ol\u003e\n\n        \u003cdiv style=\"\n          padding: 15px 16px;\n          margin: 0 0 20px;\n          background: #fff8e8;\n          border-left: 4px solid #c58b00;\n        \"\u003e\n          \u003cp style=\"margin: 0; line-height: 1.65;\"\u003e\n            \u003cstrong\u003eImportant coverage note:\u003c\/strong\u003e\u003cbr\u003e\n            The stated 500g per m² and three-coat recommendation relate\n            to general sealing applications. Do not assume that the same\n            quantity is required for every direct-to-concrete GRP\n            installation.\n          \u003c\/p\u003e\n        \u003c\/div\u003e\n\n        \u003ch4 style=\"margin: 0 0 7px; font-size: 16px;\"\u003e\n          Direct-to-concrete GRP or overboard the roof?\n        \u003c\/h4\u003e\n\n        \u003cp style=\"margin: 0 0 10px; line-height: 1.65;\"\u003e\n          \u003cstrong\u003eDirect application:\u003c\/strong\u003e\n          Where the concrete is bare, dry, sound, porous and suitable\n          for direct lamination, G4 Damp Seal can be used before the\n          selected polyester resin and fibreglass system is applied.\n        \u003c\/p\u003e\n\n        \u003cp style=\"margin: 0 0 10px; line-height: 1.65;\"\u003e\n          \u003cstrong\u003eOverboarding alternative:\u003c\/strong\u003e\n          A new insulated warm-roof build-up can instead be constructed\n          over the existing concrete or asphalt roof.\n        \u003c\/p\u003e\n\n        \u003cp style=\"margin: 0 0 10px; line-height: 1.65;\"\u003e\n          The build-up can include suitable insulation, supporting\n          battens and an 18mm OSB3 tongue-and-groove deck. The GRP\n          laminate and topcoat are then installed over the OSB3 deck.\n        \u003c\/p\u003e\n\n        \u003cp style=\"margin: 0 0 10px; line-height: 1.65;\"\u003e\n          Because the fibreglass is applied to the new timber deck\n          rather than directly to the concrete, G4 Damp Seal is not\n          normally required as the GRP primer in this type of build-up.\n        \u003c\/p\u003e\n\n        \u003cp style=\"\n          margin: 0;\n          font-size: 13px;\n          line-height: 1.55;\n          color: #666666;\n        \"\u003e\n          The roof structure, insulation, battens, fixings and deck must\n          be suitable for the installation and comply with the selected\n          roofing-system requirements.\n        \u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n\n\n    \u003c!-- =======================================================\n         ACCORDION 2: FIBREGLASS POND\n    ======================================================== --\u003e\n    \u003cdetails style=\"\n      margin: 0;\n      border: 1px solid #d7d7d7;\n      border-radius: 6px;\n      overflow: hidden;\n      background: #ffffff;\n    \"\u003e\n      \u003csummary style=\"\n        padding: 16px 18px;\n        background: #f4f4f4;\n        cursor: pointer;\n        font-size: 17px;\n        font-weight: 700;\n        line-height: 1.4;\n      \"\u003e\n        Using G4 Damp Seal before fibreglassing a pond\n      \u003c\/summary\u003e\n\n      \u003cdiv style=\"\n        padding: 18px;\n        border-top: 1px solid #d7d7d7;\n      \"\u003e\n        \u003cdiv style=\"\n          padding: 15px 16px;\n          margin: 0 0 18px;\n          background: #eef7e9;\n          border-left: 4px solid #4f9806;\n        \"\u003e\n          \u003cp style=\"margin: 0; line-height: 1.65;\"\u003e\n            \u003cstrong\u003eFibreglass lining the pond?\u003c\/strong\u003e\u003cbr\u003e\n            Use G4 Damp Seal to prepare the suitable concrete or rendered\n            surface. Do not substitute G4 Pond Sealer beneath the laminate.\n          \u003c\/p\u003e\n        \u003c\/div\u003e\n\n        \u003col style=\"\n          margin: 0 0 20px;\n          padding-left: 22px;\n          line-height: 1.75;\n        \"\u003e\n          \u003cli\u003e\n            \u003cstrong\u003eCheck the pond structure.\u003c\/strong\u003e\n            The concrete base, block walls and render must be stable,\n            sound and suitable to receive a bonded fibreglass lining.\n          \u003c\/li\u003e\n\n          \u003cli\u003e\n            \u003cstrong\u003ePrepare an even rendered surface.\u003c\/strong\u003e\n            Remove exposed aggregate, rough projections, sharp points,\n            lumps and loose material that could interfere with the laminate.\n          \u003c\/li\u003e\n\n          \u003cli\u003e\n            \u003cstrong\u003eRadius the corners.\u003c\/strong\u003e\n            Internal and external corners should have a gradual radius\n            rather than a sharp 90-degree edge, helping the fibreglass\n            reinforcement conform to the shape.\n          \u003c\/li\u003e\n\n          \u003cli\u003e\n            \u003cstrong\u003eAllow the render to dry.\u003c\/strong\u003e\n            Keep the pond protected from rain and standing water while\n            the render dries.\n          \u003c\/li\u003e\n\n          \u003cli\u003e\n            \u003cstrong\u003eClean the surface thoroughly.\u003c\/strong\u003e\n            The render must be clean, dry, sound and free from dust,\n            contamination, paint, existing sealers and loose material.\n          \u003c\/li\u003e\n\n          \u003cli\u003e\n            \u003cstrong\u003ePrepare materials before starting.\u003c\/strong\u003e\n            Cut and organise the fibreglass reinforcement before mixing\n            catalysed resin, as the available working time will be limited.\n          \u003c\/li\u003e\n\n          \u003cli\u003e\n            \u003cstrong\u003eApply G4 Damp Seal.\u003c\/strong\u003e\n            Apply by brush or roller, working the product into the porous\n            concrete or render and avoiding puddles or excessively thick areas.\n          \u003c\/li\u003e\n\n          \u003cli\u003e\n            \u003cstrong\u003eApply the laminate within the pond-lining system's\n            bonding window.\u003c\/strong\u003e\n            The supplied pond-lining guidance advises applying the\n            polyester resin and matting once the G4 has reached a tacky\n            state and not allowing more than four hours to elapse.\n          \u003c\/li\u003e\n\n          \u003cli\u003e\n            \u003cstrong\u003eIf the G4 has fully hardened, stop and prepare it again.\u003c\/strong\u003e\n            The pond-lining guidance advises abrading the hardened surface\n            and removing all dust and debris before continuing.\n          \u003c\/li\u003e\n        \u003c\/ol\u003e\n\n        \u003ch4 style=\"margin: 0 0 8px; font-size: 16px;\"\u003e\n          General fibreglass pond-lining notes\n        \u003c\/h4\u003e\n\n        \u003cul style=\"\n          margin: 0 0 18px;\n          padding-left: 22px;\n          line-height: 1.75;\n        \"\u003e\n          \u003cli\u003e\n            The supplied pond guidance recommends two layers of 450g\n            chopped strand mat for improved reliability over rendered surfaces.\n          \u003c\/li\u003e\n\n          \u003cli\u003e\n            Start with the pond walls and allow approximately 75mm overlaps\n            onto adjoining surfaces and the pond base.\n          \u003c\/li\u003e\n\n          \u003cli\u003e\n            Stagger the joints in the second layer rather than positioning\n            them directly over the first-layer joints.\n          \u003c\/li\u003e\n\n          \u003cli\u003e\n            Consolidate each laminate layer thoroughly to remove trapped\n            air and ensure the resin fully wets the reinforcement.\n          \u003c\/li\u003e\n\n          \u003cli\u003e\n            Inspect for dry patches and raised fibres before applying\n            surface tissue and the final pond topcoat.\n          \u003c\/li\u003e\n\n          \u003cli\u003e\n            Follow the resin, catalyst, laminate and topcoat instructions\n            supplied with the complete pond-lining system.\n          \u003c\/li\u003e\n        \u003c\/ul\u003e\n\n        \u003cdiv style=\"\n          padding: 15px 16px;\n          margin: 0;\n          background: #fff3f1;\n          border-left: 4px solid #d93b28;\n        \"\u003e\n          \u003cp style=\"\n            margin: 0;\n            line-height: 1.65;\n            color: #9f2519;\n          \"\u003e\n            \u003cstrong\u003eDo not apply fibreglass over G4 Pond Sealer.\u003c\/strong\u003e\u003cbr\u003e\n            The current G4 Pond Sealer technical data states that Pond\n            Sealer is not compatible with fibreglass. G4 Damp Seal and\n            G4 Pond Sealer are different products for different systems.\n          \u003c\/p\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/details\u003e\n  \u003c\/div\u003e\n\n\n  \u003c!-- =========================================================\n       FEATURES\n  ========================================================== --\u003e\n  \u003cdiv\u003e\n    \u003ch3 style=\"margin: 0 0 12px; font-size: 19px;\"\u003e\n      Features\n    \u003c\/h3\u003e\n\n    \u003cul style=\"\n      margin: 0;\n      padding-left: 22px;\n      line-height: 1.85;\n    \"\u003e\n      \u003cli\u003eSuitable before fibreglass sheathing over concrete\u003c\/li\u003e\n      \u003cli\u003eSuitable for concrete roofs and fibreglass-lined ponds\u003c\/li\u003e\n      \u003cli\u003eNominal sealing coverage rate of 500g per m²\u003c\/li\u003e\n      \u003cli\u003eApply by brush or roller\u003c\/li\u003e\n      \u003cli\u003eHard-wearing and non-porous\u003c\/li\u003e\n      \u003cli\u003eMoisture-curing, single-part polyurethane varnish\u003c\/li\u003e\n      \u003cli\u003eCan be applied at temperatures down to 0°C\u003c\/li\u003e\n      \u003cli\u003eWithstands temperatures up to 200°C\u003c\/li\u003e\n      \u003cli\u003eGood chemical resistance\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e","brand":"Pond","offers":[{"title":"Default Title","offer_id":47938098528419,"sku":"5600","price":58.67,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0525\/6160\/8867\/files\/G4_Damp_seal_5LIMGL0046.jpg?v=1783949389","url":"https:\/\/fibreglassroofkits.com\/products\/g4-damp-sealer-5kg","provider":"Fibreglass Roof Kits","version":"1.0","type":"link"}