Fibreglass Putty or Repair Kit for Large Holes?

When to Use Fibreglass Putty

Fibreglass-reinforced putty, such as the CROP 2K Fiberglass Putty, is ideal for filling moderate to sizeable holes and dents without complex structural needs. Its thick consistency allows for application in layers, ensuring strength where deeper repairs are needed, particularly on rigid plastics like jerry cans. Once cured, it is easy to sand for a smooth finish, making it ready for further priming and painting.

When to Choose a Complete Repair Kit

For holes that are wider, cause leaks, or compromise the structural integrity of your jerry can, a full fibreglass repair kit offers greater reinforcement. Kits like the Resin Fibreglass Repair Kit include layers of fibreglass matting combined with resin and hardener, forming a robust, waterproof patch. This method is suitable for emergency repairs or when maximum durability and resistance to moisture are required.

Practical Steps and Finishing Tips

• Clean and dry the repair area thoroughly before beginning.
• For best adhesion, lightly sand the surface using products like 150mm Sanding Paper Discs before applying putty or laying fibreglass matting.
• Follow curing times closely, and always sand and finish the repair for a professional, watertight result.