71522 Hylomar Tube

I pressure test all my repairs especially cooling system before it leaves my shop, hylomar M seals better than any gasket. It cures to credit card thickness, perfect for most work. I like it more than hylomar AF with a gasket, has eliminated come backs. Be sure to follow label directions no wonder all the high dollar mfgs. Use this

This is what mercedes benz actually uses and it’s oe equipment.

Extremely fuel resistant, goes on like a gel and firms up. Glue like, but parts can be separated, then reattached without needed more product. I used it to seal fuel sender gaskets and hardware to aluminum tanks on my Aircraft.

Hylomar is a gift from the gods. Doesn't leak and can be removed with a brush and brake cleaner.

I have been using this stuff for over 20 years now, and has been the best I've ever used ATV/dirt bike/ motorcycle engine case halves. I actually use it in place of a gasket, it works better than the gaskets do. If you know anything about these cases come on half the time the gaskets leak right out of the it's pretty gate or you're working with case is that somebody else has used a screwdriver and damaged them where they need to seal. Can't go wrong with this!

I have used hylomar for years, formerly under the Permatex brand, and it works very well. nonhardening sealant is very easy to work with and clean up when gaskets need to be replaced.

Used this on my copper head gasket along with copper cost and it sealed up coolant and oil ports perfectly

How to explain this product...You can have a garage and a shop without having this product.This and WD-40 is a pair.