May 30, 2019  Shop for New Auto Parts at 1AAuto.com In the video, 1A Auto shows how to repair and repaint a crack on a plastic bump. Oct 04, 2019  Fill the cracked bumper from behind with plastic welding rod Just like with hot staple stitching, you must remove the bumper cover from the vehicle to stitch the crack with plastic welding rod. Instead, purchase a plastic welding kit like the Polyvance 5700HT Mini Weld Model 7 Airless Plastic. Jun 02, 2017  Plastic welders only fix one side of a cracked bumper at a time. Step 4: Onto the Frontside After the backside repair has dried, it’s time to move on to the crack that remains on the front of the bumper. Here's a video tutorial on how to repair a crack in your car's plastic bumper. Add Tip Ask Question Comment Download. Step 1: Remove the Bumper. Here's what the bumper damage looks like before the repair. The bumper was then removed from the vehicle, a few photos showing the inside and outside of the damaged area. Mar 20, 2018  HOW TO FIX CRACKED BUMPER, AMAZING REPAIR Our Website: In this video we will show you how to fix cracked bumper cover.

Introduction: Cracked Bumper Repair

Here's a video tutorial on how to repair a crack in your car's plastic bumper.

Step 1: Remove the Bumper

Here's what the bumper damage looks like before the repair.

The bumper was then removed from the vehicle, a few photos showing the inside and outside of the damaged area.

Step 2: Sanding

Next, use a dremel tool to carve a V shaped groove in the back of the bumper along the crack. This is to give the adhesive some more surface area to stick on. Then sand the area around the crack for better adhesion.

Tape up the front of the bumper so it holds with the crack flush. This is the position the bumper will be epoxied in, so make sure it is aligned correctly.

Step 3: Apply Epoxy

A clamp was applied at the top of the crack to prevent it from separating.

JB Weld Plastic bonder was applied along the crack. Its a two part mixture that was spread on using a small card or Popsicle stick.

Before the epoxy dries, put some drywall mesh tape over the back of the crack to reinforce the repair, and apply more epoxy on top.

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Step 4: Fill in the Crack

Once the epoxy has dried overnight and cured, the tape and supporting clamps can be removed.

At this point you can apply touchup paint, or use filler to properly fill the crack.

First sand the damaged area on the outside of the bumper so the filler can hold.

Then apply a body filler suitable for plastic. In this case the incorrect filler was used, hence the final result wasn't as seamless as it should be. Sand the body filler down with 320 grit sandpaper.

Plastic

Now is a good time to take care of other scratches within the vicinity of the damaged area since it will be repainted.

Step 5: Prime and Paint the Bumper

The sanded area of the bumper was then primed with two light coats of primer. It was then wet sanded using 400 grit sand paper and soap water.

A spray can was mixed at a local CarQuest to the correct color for the vehicle. It is a single stage paint, with base coat, pearl and clear coat in one can.

The proper way to finish the job would be to repaint the whole bumper, but since this was a quick cheap fix, I opted to blend quarter of the bumper. Brandi broke jobs sims 2. The result came out pretty good after two coats of paint.

Step 6: Reinstall the Bumper

Once the paint has cured and can be handled, the bumper can then be reinstalled on the vehicle.

The result is amazing, an almost undetectable repair, done at home for about $50 in materials.

In this case a small hairline crack can be seen where the crack once was, because the incorrect body filler type was used.

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