I have a crack on my front bumper I want to fix. I tried fiberglass but it just popped off. I don’t know what I did wrong. Any tips would be appreciated.

 

Prep is the key. Do most of the work on the INSIDE. The surface you want stuff to stick to needs to be squeaky clean. (which means No Paint as well.) Trouble is, it also needs to be kinda flexible......

 

well what material do I use? Fiberglass or bondo?

 

A new cover for about 150-160. Or a plastic welder and plastic epoxy.

 

Not sure fiberglass would be flexible enough. Bondo certainly isn't. I can ask my boss on monday. He did body work for 20 years or more. (and he's good at it....)

 

Plastic welding staples, they need a special tool but on the videos I've seen looks to be quite clever way to repair plastic.
Or just plastic welding. In order to keep it flexible, you'll need use similar type of plastic.
Bondo, fiberglass or anything that you lay on top of the plastic will eventually break off.

 

 

Neither!
The procedure is about the same depending on what brand adhesive you use.
https://www.henkel-adhesives.com/us/...ed-bumper.html

 

I love this! Thank you!!!