Bumpers are the front line of defense for a vehicle and are designed to be sacrificed to secure the safety of the driver, as well as prevent damage to the vehicle body. It is not surprising that bumpers often sustain damage, even during minor incidents, such as backing into a mailbox. While major collision damage may require bumper replacement, minor cracks and tears can be repaired at home. Body work and collision repairs are expensive, but a cracked bumper repaired at home is likely to cost a fraction of the price you might pay at a repair shop.
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In this video I run through how to repair a crack in a plastic bumper bar in a complete DIY Do It Yourself method. All you need is a heat gun. Jun 02, 2017 The repair materials used to fix a cracked bumper have come a long way from when I started working on cars. Using the proper material is vital in achieving a solid repair that will stand the test of time. In reality, the repair materials used in the shop. With the plastic bumper removed from the body, pour a nominal amount of boiling hot water to the inside part of the bumper. Move the bumper from side to side to dissipate the hot water over the entire surface of the bumper. Place the bumper on a table and use a folded terry cloth towel to push the dent out. Plastic Bumper Repair Step 1: Choose an Adhesive and Prep the Fascia. Step 2: Grind a 'V' After the solvent has dried, sand the area by hand with 80-grit paper. Step 3: Mix the Adhesive and Repair Tears. Repair tears and cuts from the back side of the fascia. Step 4: Spread the Plastic Filler. Remove the cracked bumper cover from the body of the vehicle. Look for screws on the sides of the vehicle beneath the taillights and in the wheel wells, as well as in the middle, beneath the trunk latch. Lift the trunk carpeting to check for additional screws that attach the bumper cover to the body. May 18, 2019 Follow the instructions on this tutorial to fix a cracked bumper yourself for under $50 instead of spending $1000-$1500 on a new bumper replacement. In this tutorial, we will show you how easy it is to fix a cracked bumper. We won't use epoxy glue but instead, use plastic weld method. The plastic weld method described here is very durable.
Step 1
Remove the cracked bumper cover from the body of the vehicle. Look for screws on the sides of the vehicle beneath the taillights and in the wheel wells, as well as in the middle, beneath the trunk latch. Lift the trunk carpeting to check for additional screws that attach the bumper cover to the body. Place the bumper on a padded work surface to prevent unnecessary scratching of the surface, and ensure that the work environment is well ventilated.
Step 2
Use 80-grit sandpaper to roughen the area around the crack on the inside and the outside of the bumper. Clean the area, and remove the particles produced by sanding, both inside and outside, with surface cleaner. Allow the area to dry completely.
Can You Repair Crack In Plastic Bumper
Step 3
Wipe the roughened area with plastic prep solvent to encourage better filler adhesion. Allow the plastic prep solvent to dry.
Step 4
/download-songs-of-justin-bieber.html. Measure the crack, and cut and apply an appropriate size piece of self-adhesive fiberglass mat to the back surface of the bumper. Ensure the piece of mat covers the crack with about one inch of excess mat around the crack. The fiberglass mat provides extra support to the damaged area and makes filling the crack an easier process.
Step 5
How To Fix Crack In Plastic Bumper
Identify the plastic type from which the bumper is made: PP, PPO, TPE, PUR or TPUR. The type is usually engraved or stamped on the inside of the bumper cover. The plastic type determines which filler adhesive to use for the repair.
Step 6
Follow the manufacturer's instructions for mixing the filler adhesive. Use a smooth-edged plastic or heavy paper spreader card, approximately the size of a credit card, to spread the filler over the damaged area. Apply the first layer, spreading the filler in the direction of the crack. The second layer of filler is applied by stroking across the crack, at right angles to the first stroke, using shorter strokes. Use a clean edge of the spreader card to remove any excess material. Allow the filler to harden.
Step 7
Use 80-grit sandpaper to remove any uneven bumps, and ensure the filler is flush with the level of the bumper. Polish the repaired area with wet 400-grit sandpaper. Remove any dust particles with a damp rag, and allow the area to dry.
Step 8
Prepare the damaged area for painting by applying a primer coat. Follow the instructions for application provided by the manufacturer of the plastic primer. Allow the primer to dry and then sand the area lightly with 400-grit sandpaper to promote paint adhesion. Remove dust particles with a damp cloth, and allow the area to dry.
Paint the bumper with plastic paint, following the instructions provided by the paint manufacturer. Apply a second coat of paint, after the first has dried, to ensure maximum coverage of the damaged area. Allow the paint to dry completely, and install the repaired bumper cover on the vehicle.
How To Repair Cracked Bumper
Warning
- Chemical inhalation can cause dizziness or fainting. Be sure to work in a well-ventilated area when using solvents, glues or paints.
Items you will need
- 80-grit sandpaper
- 400-grit sandpaper
- Surface cleaner
- Rag
- Self-adhesive fiberglass mat
- Plastic prep solvent
- Plastic or paper spreader card
- Filler adhesive
- Plastic primer
- Plastic paint
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- car dealership 3 image by Alexey Stiop from Fotolia.com