Hand Sander

After lamination has cured, detailed areas of a GRP roof must be sanded before applying topcoat. Trims, corners, internal angles and edge overlaps are common areas where sharp fibres, resin build-up or high spots can prevent proper topcoat adhesion.

This hand sander is designed for precision sanding of GRP roof details, helping create a smooth, keyed surface ready for acetone wipe and topcoating.

Why detail sanding matters on GRP roofs

• Removes sharp glass fibre spikes around trims and corners
• Flattens resin ridges along A & B trim overlaps
• Smooths internal angles and upstands
• Creates a proper mechanical key for topcoat adhesion
• Reduces risk of pinholes and capillary water ingress

Where this tool is most useful

• Laminated drip trims (A200 style edges)
• Raised edge trims and perimeter details
• Internal corners and box gutter angles
• Around outlets, pipes and roof penetrations
• Small repair patches

Product features

• Rigid backing plate for controlled sanding pressure
• Comfortable grip handle for precise work
• Quick clamp system for fast sandpaper changes
• Ideal for use with standard sanding sheets
• Lightweight and easy to manoeuvre

For best results, sand all detailed laminate areas once fully cured, then wipe down with acetone before applying GRP topcoat. Proper preparation of trims and corners is essential for achieving a professional, long-lasting finish.