Tricel Polyester Topcoat 1kg – Isophthalic Brush-On Flowcoat for GRP & Fibreglass Repairs
A pre-accelerated polyester topcoat in white, grey or black that brushes straight onto cured GRP and sets to a hard, tack-free finish.
- Available in white, grey or black
- Pre-accelerated thixotropic isophthalic polyester topcoat
- Brushes or rollers onto cured GRP mouldings and repairs
- Cures tack-free, so no sanding back a sticky surface
- Catalysed with MEKP at 1.5–2.5% by weight
- Gel time under 15 minutes at 2% MEKP and 25°C
- Target wet film thickness 500–800 microns
- Full cure 24 hours at 20°C, then 48 hours at 40°C
- Barcol hardness 42 once fully cured
- Heat deflection temperature 77°C
- Supplied in a 1kg pack, colour selected at checkout
- Shelf life four months from manufacture, stored below 20°C
- Suits hull and deck repairs, lockers, tenders and GRP mouldings
A polyester topcoat is what finishes a fibreglass repair once the laminate has cured. Because this Tricel flowcoat is pre-accelerated and thixotropic, it goes on by brush or roller without running off vertical surfaces, and it cures to a hard, tack-free film rather than staying sticky the way plain laminating resin does. Choose white for standard hull and moulding work, or grey and black where the repair sits against a darker gelcoat or inside a locker. Add MEKP catalyst at 1.5–2.5% by weight and work quickly, as the gel time is under fifteen minutes at 25°C. Condition the tin to 18–23°C first, stir gently so no air is worked in, and check the wet film as you go — 500 to 800 microns is the target. It leaves a durable isophthalic surface that stands up to year-round salt exposure on Irish coastal waters, so it suits hull and deck patches, locker interiors and tender repairs alike.
Sold as: one 1kg pack in the colour selected. MEKP catalyst is not included and is sold separately.
