Reddit reviews Gunk HS3-4PK Hydro Seal Heavy Duty Parts Cleaner - 1 Gallon, (Case of 4)
We found 1 Reddit comments about Gunk HS3-4PK Hydro Seal Heavy Duty Parts Cleaner - 1 Gallon, (Case of 4). Here are the top ones, ranked by their Reddit score.
GUNK is a local family owned company based out of Charlotte, NC. For more than 75 years, GUNK products, developed by the people who use them, has earned the trust of hard-working tradesment and the active DIYer through consistent, superior performance and a commitment to innovation.Powerful, heavy-duty hard parts cleaning compoundSpecial brightening agent gives a factory-fresh appearanceContains no carcinogens or chlorinated solventsSafe to use on all metals including brass, aluminum, chrome
I have found Hydro-Seal II to be very good at removing deposits.
You don't want to breathe the fumes or get it on you skin. Plug one end of the suppressor, fill it with hydro-seal and leave it over night (or a couple days if need be). Then empty it and run a test tube brush through the suppressor and flush it clean with something like Gunk carb spray.
Don't use OLD used Hydro-Seal as it will build up acids which can attack metal catastrophically. The clean HS will not harm metals. I once soaked a motorcycle carb in a bucket of old HS and forgot about it. A couple months later I pulled up the basket and the entire carburetor had dissolved into a lump of gray mush. I also placed a painted padlock key into the bucket and forgot about it, when I pulled the basket, the key was there and bright and shiney. When I tried to pick it up it just disintegrated. The HS had dissolved all the brass and left only the chrome plating which instantly broke apart when I touched it.
You can get it at some of the better auto parts stores. Here's a link to Amazon for four gallons of it.
http://www.amazon.com/Gunk-HS3-4PK-Hydro-Heavy-Cleaner/dp/B00BGSF92E/ref=sr_1_1?ie=UTF8&qid=1463169354&sr=8-1&keywords=Gunk+HS3-4PK+Hydro+Seal+Heavy+Duty+Parts+Cleaner
EDIT: I use Hydro Seal II on my suppressors with zero problems. Actually the OLD used HSII works well too you just have to be careful no to expose the metal for too long. I have containers of both. HSII is strange stuff, it becomes increasingly good at cleaning the older it gets but at some point it can be too good.