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What kind of glue can be used to bond a car bumper?

2 Answers

SanAnnie

07/24/25 4:54am

Epoxy resin adhesive can be used to bond a car bumper. Knowledge about epoxy resin adhesive: 1. Characteristics: Epoxy resin adhesive is known for its high strength, ability to withstand heavy loads, and resistance to aging, fatigue, and corrosion, ensuring stable performance throughout its expected lifespan. 2. Uses: (1) It can be used for fiberglass bonding, such as the interior of boat hulls and bus bodies; (2) It can replace woodworking strong glue for bonding woodwork; (3) It can also be used to bond wood that has suffered from corrosion; (4) It is used to reinforce standard parts to prevent cracking; (5) It is used in jewelry making to achieve excellent results.

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JaxonMarie

08/11/25 12:33am

I've tried several types of adhesives for bonding bumpers, and the results vary greatly. Nowadays, most bumpers are made of PP plastic, and ordinary 502 glue doesn't work at all. I specifically tried PP-specific structural adhesive, which requires sanding around the crack with sandpaper before application, followed by surface treatment with an activator and letting it dry before applying the glue. Pressing and fixing for more than 12 hours makes the bonded area extremely strong, and it hasn't cracked even after car washes. For small cracks, using a heat gun to heat and press simultaneously can provide a temporary fix. However, for large-area fractures, it's recommended to replace the bumper directly, as glued repairs will inevitably compromise strength.

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