WEST SYSTEM G/flex 655 Epoxy Plastic Boat Repair Kit – Toughened Marine Adhesive

Repair cracks, splits, and damage in plastic boats with confidence using the WEST SYSTEM G/flex 655 Epoxy Plastic Boat Repair Kit—a complete, easy-to-use solution for strong, flexible, and waterproof repairs.

This kit features pre-thickened G/flex 655 epoxy, specifically designed to bond to hard-to-glue plastics like HDPE, LDPE, ABS, PVC, and polycarbonate—materials commonly used in kayaks, dinghies, and small boats . Unlike standard epoxies, G/flex is toughened and slightly flexible, allowing it to absorb shock, vibration, and movement without cracking .

The gel-like consistency (no sag) makes it ideal for vertical and overhead repairs, while the simple 1:1 mix ratio ensures easy application—even for DIY users . It forms a permanent waterproof bond, suitable for both above and below waterline repairs when properly applied .

Supplied as a complete repair kit, it includes resin, hardener, mixing tools, gloves, and instructions—everything needed for small to medium repairs, whether you’re fixing a crack in a kayak or reinforcing a damaged section of hull.

Key Features

• Pre-thickened G/flex 655 epoxy – no fillers required
• Bonds difficult plastics – HDPE, ABS, PVC & more
• Flexible yet strong – absorbs shock and vibration
• 1:1 mix ratio – simple, user-friendly application
• Non-sag gel consistency – ideal for vertical repairs
• Waterproof structural bond – suitable for marine environments
• Complete repair kit – includes tools, gloves & mixing supplies

Specifications

• Brand: WEST SYSTEM
• Model: 655-K G/flex Repair Kit
• Type: Two-part toughened epoxy (pre-thickened)
• Mix Ratio: 1:1 by volume
• Working Time: ~75 minutes
• Full Cure: ~24 hours
• Consistency: Gel (non-sag)
• Contents: Resin, hardener, mixing sticks, palettes, gloves
• Applications: Plastic boats, kayaks, inflatables, fibreglass, wood, metal

Ideal Applications

• Repairing cracks and holes in plastic kayaks and canoes
• Fixing rotomoulded dinghies and small boats
• Bonding dissimilar materials (plastic to metal, fibreglass, wood)
• Reinforcing damaged hull sections
• General marine and DIY structural repairs

This kit is widely used because it successfully bonds plastics that most adhesives struggle with, making it a go-to solution for polyethylene boat repairs .