La-Co 11575: High-Temperature Heat-Seal Stik Epoxy Sealer Stick - 3/8 oz Review

A racing driver friend of mine lent us his heat sealing pen when our relatively new racing cooler started leaking at the seam. We've done a few races successfully so it's now just a standard part of our race gear and we've recommended it to other riders. Priceless - and the best price I've found!

Fixing a leak on a small copper pipe in the evaporator area of the Comfortmaker air conditioner. Well after applying the epoxy I evacuated the system to a vacuum and held it for 10 minutes and it survived. Then I added some Freon up to 150psi and tested the epoxy repair and it was good. Filled the system up to the right level and so far so good. Time will tell, but so far so good.

Works perfectly. I had a customer who brought in a microfridge which he punctured trying to defrost and had a hole in the aluminum coil just big enough to fit the tip of a pen. I cleaned the oil of coolant and paint, got a warm evaporator coil, melted it, tested it with nitrogen at 150psi, and it lasted and lasted. Vacuumed and loaded back. Let's just say that everything works fine and the customer is very satisfied. If you need it, don't be shy. It's worth it! This is how I can rescue an…