Thermoset Polyurethane (PUR) Repair

Videos

Pickup Truck Flareside Plastic Side Panel Repair
Pickup Truck Flareside Plastic Side Panel Repair
Some pickup trucks have urethane side panels on the pickup bed, often referred to as "flareside" or "stepside." These panels can be expensive to replace, but if you can find... Read more...
Polyurethane Repair - Firebird Ground Effect
Polyurethane Repair - Firebird Ground Effect
This 1979 Firebird front ground effect that has a four-inch crack and a broken tab. These older Firebird parts are made of polyurethane plastic. So for this repair, we will... Read more...
How to Repair Thermoset Polyurethane
How to Repair Thermoset Polyurethane
Thermoset polyurethane (PUR) was commonly used for domestic bumper covers in the 1980s and 1990s, but has since been largely replaced by polypropylene. However, PUR is still occasionally used. Polyurethane... Read more...
Repairing Spiderweb Cracks on a Polyurethane Bumper Cover
Repairing Spiderweb Cracks on a Polyurethane Bumper Cover
Although thermoset polyurethane (PUR) bumper covers are rare on late-model vehicles, there may still be instances where one needs repair. This bumper cover from a 1992 Chevrolet Camaro has developed... Read more...
Creating a New Tab on a Urethane Bumper Cover
Creating a New Tab on a Urethane Bumper Cover
Urethane bumper covers are often discarded due to broken tabs and bolt holes. However, with the right tools and techniques, this damage can be repaired. While thermoset urethane doesn't melt,... Read more...
A urethane bumper cover with a crack is being repaired by an airless plastic welder. PUR rod is being fed through the tube in the airless welder tip.
Polyurethane Bumper Cover Repair
Polyurethane bumper covers, like the one on this old Camaro, are rare on late-model cars. However, with more people restoring vehicles from the 70s and 80s, the need to repair... Read more...
A urethane bumper cover with a crack is being repaired by an airless plastic welder. PUR rod is being fed through the tube in the airless welder tip.
Repairing a Urethane Bumper Cover with an Airless Plastic Welder
Thermoset polyurethane (PUR) is a non-meltable plastic, so nitrogen plastic welders cannot be used to repair it. Instead, airless plastic welders can be used to create a hot-melt glue-style repair.... Read more...