Hallo everybody!
My name is Kamil and this is my first post at this forum. I found it during googling after some cheap PTFE (type) coating and think that there is a lot of ppl who know about surface finish and may give me a hand with my problem.
The problem is how to coat internal surface of paintball barrel. Few days ago I had a small "flame war" about "does paintball barrels producers really coat they barrels with teflon or ceramics or they don't". My opinion was that it is possible to cover internal surface in barrel 0.683" dia. and 10" to 18" long, and my opponent say it is impossible becouse he can't imagine how to do it. As one of his arguments he use that he produce barrels (btw. according to experienced players word of mouth very good barrels) and what producers advertise as ceramic or teflon coating it is III anodising. So after few posts I have gave up trying to convince him, kicking with a horse is not my favorite fun, and I want to prove him that coating barrels with friction cating is possible even if he don't know how to do it. I'm going to buy few of his barrels and coat them.
So ladis and gentelman I want to ask you for help with choosing cost efficient coating which I could use.
Paintball barrels diameters are from 0.678 for reusable training rubber balls up to 0.683 - 0.695 for proper gelatine paint balls.
The material is aluminium PA6, type III anodising.
Barrels are coated to achive self cleaning effect after
ball failure in the chamber and barrel. So the coating must prevent from stick gelatine shells and warer/starch based paint to walls. So the next few balls will push out of the barrel residue of broken ball.
I will appreciate if you can estimate the cost of such a coating. I live in the UK and will try to find workshop here.
best regards
Kamil
PS. English is not my first language so I appologize for my grammar.