I really hate...


CGF II, Certified Grumble Framer Level 2
Sep 18, 2002
Huntington Beach, CA
...my 3M Pro-Spray System.

When it works it's great! But more times then not the head is all clogged up and nothing seems to clean it enough to use it again so I end up changing it. (I keep the small sponge moist)

The glue is always finding ways to attach your fingers leaving another mess to clean up.

77 is back in my life... :mad: :eek: :confused: Ok, I'm feeling much better now.

Thanks my friends for being there...
Therapy for disgruntled ProSpray users (I tried it. It works. Now I love my ProSpray again).

When the head/guts/nozzle get clogged, fill a small container large enough to hold the head of the PS handle (where the bottle goes)with Unseal, Bestine, or your favorite adhesive remover. About 4 inches deep - takes about half a can.

Put the handle head side down and immerse in the Unseal for about 2 hours.

Rinse with water. Use a stiff brush if necessary(probably not).

Let dry and you're good to go. I find it necessary to do this about every 3 weeks or so to keep everyting really clean and clog free. I also spray a little bit each day when re-moistening the sponge. It's not fool-proof but it's the only way we can continue to live together. 77 and I don't get along AT ALL.

I love the ProSpray system and use it everyday. I have not had but one nozzle that needed to be replaced. 3M sent me a small bag of them about 10 or so.

Maybe I am not having problems BECAUSE I use it everyday.

There is no way I would go back to 77. It stinks, it makes your store stink, and it does not stand the test of time. I have had things come back after 5 years for re-matting and you can see that the adhesive is letting go. Hopefully the ProSpray will stand the test of time.
I agree that 77 is something to be avoided at all costs for your health and everyone else's who breathes the air it escapes into. Also, if you decide to soak the head as Tony suggests, please wrap plastic wrap or alum. foil - something airtight - around the top of the container to keep the vapors inside. Any cleaning item like Undo, etc. is a solvent, with vapors being extremely harmful to health, not to mention highly flammable. Good luck.

Amy McCray
I'm feeling better now.

Thanks all,

I did soak the tip and front of the pro-spray unit in un-stik and didn't work for me.

Also, when I tried to insert the bottle back into the pro-spray unit It squirted be in the face...
guess I need to point the gun in the other direction :D

Thanks again all.