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DIY Bumper Crack Repair

speedkar99
467K subscribers
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4.1M views 8 years ago
Here's how to repair a crack in a plastic bumper. Cracked bumpers are common on many vehicles that frequent shopping malls drive on rural roads. Often times a replacement is not warranted due to high cost or low quality replacements. This video demonstrates how you can fix your cracked bumper by yourself at home, with supplies you can get from any auto-parts store. First, a V-groove is grinded into the back of the crack to increase the surface area for the epoxy adhesion. The crack is then sanded and cleaned. The top of the crack was secured with a clamp and the front of the crack was held together with tape. JB-Weld Plastic Bonder was then used to fill in the crack from behind. Drywall tape was used as a reinforcement and the setup was allowed to cure overnight. After the 2-part epoxy is dried, it will be rock hard. From the front, the crack should now be much less visible if it was aligned properly. Sand the front of the bumper arou …...more
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grinding the v-groove into the crack

0:14

use a little bit of acetone

0:34

use a pair of locking pliers to clamp

0:47

using a little bit of drywall tape at the back

1:08

lay down some of this drywall tape to reinforce

1:20

put another layer of epoxy

1:26

let that dry for about 12 hours

1:38

put some touch-up paint on the crack

1:51

apply a thin layer to the crack

2:13

sand it with some 80 grit sandpaper

2:25

apply my second layer of primer

2:55

wipe it down with a nice wet rag

3:10

install the bumper onto the vehicle

3:49
DIY Bumper Crack Repair
39KLikes
4,137,636Views
2016Apr 30
Here's how to repair a crack in a plastic bumper. Cracked bumpers are common on many vehicles that frequent shopping malls drive on rural roads. Often times a replacement is not warranted due to high cost or low quality replacements. This video demonstrates how you can fix your cracked bumper by yourself at home, with supplies you can get from any auto-parts store. First, a V-groove is grinded into the back of the crack to increase the surface area for the epoxy adhesion. The crack is then sanded and cleaned. The top of the crack was secured with a clamp and the front of the crack was held together with tape. JB-Weld Plastic Bonder was then used to fill in the crack from behind. Drywall tape was used as a reinforcement and the setup was allowed to cure overnight. After the 2-part epoxy is dried, it will be rock hard. From the front, the crack should now be much less visible if it was aligned properly. Sand the front of the bumper around the damaged area. Use plastic auto-body filler to fill in the cracks, and progressively sand the filler off before applying primer. Use some rubbing alcohol, paint thinner or acetone to clean the surface before applying primer. The primer was then wetsanded before paint was applied. The paint was ordered in a spray can from CarQuest and mixed according to the paint code. The color match is very close, just slightly darker due to the 12 year old oxidized paint, and there is a decent pearl that shines back in the sunlight. Two thin layers are applied then allowed to dry for a few hours before handling. The bumper can then be replaced on the vehicle and fasteners reattached. Wait a few days for the paint to fully cure before applying polish and wax. Now stand back and enjoy your repaired bumper. The whole process shouldn't take more than a day if you factor in drying time. This video is an excellent tutorial to follow:    • How to fix CRACKED Bumper LIKE A PRO!...   Get ALL the items needed to REPAIR your bumper here! JB Weld: https://amzn.to/2XlD001 Color Matched Paint: https://amzn.to/2JfFkSJ Bondo Body Filler: https://amzn.to/2RU7Iw2 Primer: https://amzn.to/2JcjY8t Spot Putty: https://amzn.to/2RU0h84 Filler spreader: https://amzn.to/2JnUpjL Rotary tool: https://amzn.to/2Jms3GF Sandpaper: https://amzn.to/2XsegDk Locking Pliers: https://amzn.to/2Xp8p1B Masking Tape: https://amzn.to/2RXFX5R Drywall tape: https://amzn.to/2Xr2Waw Paint Thinner: https://amzn.to/2RTTpb2 Face Mask: https://amzn.to/2XmxhvM Microfiber cloth: https://amzn.to/2Xs6luH Check out the speedkar99 Facebook page:   / speedkar9   Follow me on Instagram:   / speedkar9   Subscribe for more videos just like this: https://www.youtube.com/subscription_...

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speedkar99

467K subscribers