Need to repair a crack or hole in a car panel? Leaky guttering? This is what you need! Once soaked with Big Boy fibre glass adhesive resin, Silverhook’s Big Boy heavy duty glass fibre mat will create a tough structure that will permanently retain its moulded shape. Once it’s set you can rest assured no oil, grease or petrol will get through and it will withstand temperatures up to 26 degrees Celsius. Use it to repair cracks or holes in brick, metal, plastic, wood, etc. Available in three sizes at seriously great value prices!