A jostle in the car park and it suddenly happens – a tear in the plastic. Without a bumper the damage would definitely be greater. That’s because the bumper absorbs the energy from the impact when there is an accident thereby protecting the chassis. Bumpers used to be made from solid steel and posed a hazard, especially to other road users like pedestrians or cyclists. The effects from a collision were often serious cases of broken bones. Today’s plastic bumpers minimize the risk of injury significantly.
The car bumper is as important as the headlights. If it breaks it should be repaired as quickly as possible. But unlike a defective light bulb, you don’t necessarily have to replace it.
The repair
We repaired a torn bumper using our construction adhesive Easy-Mix PE-PP 45 and fibreglass tape, quickly and easily. First, the tear should be fixated using adhesive tape so that it doesn’t get any bigger. In the second step, the interior – the area that will be repaired later – should be sanded down using medium grain size sandpaper, and then treated with WEICON Surface Cleaner.
The adhesive being used here consists of two components. Thanks to the double cartridge they are already mixed together in the right proportion inside the nozzle and the adhesive can be applied generously to the tear from the inside. The adhesive should then be distributed with a spatula. Afterwards, place a piece of fibreglass cut to size onto the tear and apply pressure. Be sure to wear gloves or use a tool to ensure that hands do not come into contact with the adhesive. Finally, apply the adhesive again generously and let harden at room temperature.
After 24 hours the bumper is fully functional again. For the perfect look you can grind down the outside and re-paint it.
Fixate the tear from outside with adhesive tape
After sanding and cleaning the area, apply adhesive to the tear
Spread the adhesive and apply another coat
Cut fibreglass to size, press on and apply adhesive again
