Free shipping on orders over £29,85 
Shipping Tracking! 
Google
Facebook← Back to How do you use fiberglass and epoxy glue?
Properly executed fibreglass repairs deliver impressive durability and a seamless finish. Following time-tested methods will help ensure your repairs remain strong, waterproof, and fit for purpose—whether you are working on vehicles, boats, or DIY projects at home.
Surface Preparation: The Foundation of Repairs
Thorough preparation is vital before beginning any fibreglass repair. Start by cleaning the area to remove dust, grease, and old paint, then roughen glossy surfaces with sandpaper. Ensuring the substrate is clean and slightly abraded allows the resin and fibreglass to bond securely, leading to a longer-lasting repair.
Mixing and Applying Resin with Precision
Carefully measure and mix resin and hardener in the recommended ratio provided by your product. For most jobs involving fibreglass mat or cloth, a product such as the “Carbon Resin” Epoxy Resin offers easy application and reliable impregnation of fibres. Even, bubble-free mixing and application help avoid weak spots and ensure the composite retains its mechanical strength.
Allowing for Full Cure
Once the resin and fibreglass are in place, patience is key. Protect the repair from moisture and disturbance as it cures, following your product’s recommended curing time. This step is essential to achieve full strength and ensure long-term durability.
When Attention to Detail Matters Most
- Water-exposed surfaces (boats, pools, tanks)
- Structural or load-bearing repairs
- Preparation for painting or mechanical finishing
Best practice is particularly important if the area will be stressed or needs to remain watertight and smooth after finishing.
Related products
Related guides
Effective fibreglass and resin repairs rely on careful preparation and curing. For more detailed advice and guidance on using these products, visit our main guide: How do you use fiberglass and epoxy glue?