2″ Laminating Brush

The Principal Building Products Ltd 2″ Laminating Brush is an essential GRP roofing tool designed for the accurate application of polyester resin, topcoat, and gelcoat on fibreglass flat roofs. Compact and chemical-resistant, it is the go-to brush for roofers and DIY installers tackling intricate detailing, upstands, and edge trim work where larger rollers cannot reach. Supplied by Principal Building Products Ltd — a trusted UK builders’ merchant supplier with over 30 years in the construction industry.

Key Features and Specifications

• Width: 2 inches (50 mm)
• Handle: Lightweight plastic handle for comfortable, extended use
• Bristles: Solvent-resistant synthetic bristles, bonded with chemical-resistant adhesive
• Chemical resistance: Will not disintegrate on contact with polyester resin, topcoat, gelcoat, or acetone
• Application: Suitable for GRP laminating, topcoat detailing, and primer application
• Category: Fibreglass Roofing Products — GRP Accessories
• Brand: Principal Building Products Ltd

Applications

• Applying catalysed polyester resin to chopped strand matting (CSM) on fibreglass flat roofs
• Topcoat and flowcoat detailing around GRP trims, drip edges, and upstands
• Primer application to OSB, plywood, and concrete substrates prior to GRP laminating
• Small-area fibreglass roof repairs and patch laminating
• Gelcoat application in tight or restricted-access areas
• Detailing around rooflights, pipes, and abutments on GRP waterproofing systems

Why Choose This Product

At 2 inches wide, this brush strikes the ideal balance between control and coverage for detail work — narrow enough for bottom lip trims and corner upstands, yet efficient enough for small repair patches. The solvent-resistant bristles and plastic handle ensure the brush survives repeated acetone washes and prolonged resin contact without shedding bristles or softening, protecting your laminate from contamination. Competitively priced for trade quantities, it is a cost-effective consumable for any GRP roofing project.

Delivery in and Around London

We deliver the Principal Building Products Ltd 2″ Laminating Brush to trade and retail customers across London, including inner boroughs such as Croydon, Lewisham, Southwark, Camden, and Hackney, as well as Greater London areas including Enfield, Bexley, Redbridge, and Barnet. We also supply to surrounding counties including Kent, Essex, Surrey, and Hertfordshire. Trade quantities are welcome — contact us for bulk pricing on larger orders.