Duratex question

[Kevin James]

Sorry if this is in the wrong area. Not sure where to put this thread.

I need to do some finish touch ups on a couple of my Tuba 36's tomorrow for a gig. Cabs were coated in Duratex. I didn't build them, I bought them from Blades 976 aka John when he was an authorized builder. At the time he gave me a decent size silver can of Duratex for touch ups.

What I want to know is, how can I tell if this Duratex is the spray grade or the roll on grade? I think its spray as it looks like he sprayed the cabs but not 100% sure. I'm going to Sears to buy a Hopper gun but I'm wondering what the main difference is with the spray grade vs the roll on grade and if the roll on grade would cause any problems in a hopper gun.

[Greg Plouvier]

Spray is thinner than roller. If it's really thick you can thin it a little with water. Just try a little on a test piece.

[sine143]

another question:

Can spray grade be rolled (to a lesser degree)?

[djtecthreat]

I rolled a little spray grade to finish a little stand I built, but didn't feel like firing up my gun to do it. Worked fine, just took my time and rolled it nice and easy.

[Tsloms]

another question:

Can spray grade be rolled (to a lesser degree)?

How about the opposite? Can roller grade be sprayed with a touch of water to thin it?

[LelandCrooks]

another question:

Can spray grade be rolled (to a lesser degree)?

How about the opposite? Can roller grade be sprayed with a touch of water to thin it?

It can, but not as effectively as spray grade can be rolled. Spray grade is ground slightly finer. I keep a box of disposable chip brushes around the shop for touchups. Dab it with the brush, you can emulate rolled or sprayed pretty easily.

[Kevin James]

OK cool. Thanks guys. I think what I have is the spray grade but I will mix a little water in if its too thick.

I bought a hopper gun last night but I can't seem to find any info on how you clean the thing after use. What do you guys do to clean your hopper gun after using Duratex in it?

[WB]

water

[Kevin James]

OK. Thats pretty simple LOL I was thinking maybe terpentine or paint thinner but if water does the job thats even better.

[Greg Plouvier]

Just make sure you clean it right away before the stuff hardens

[WB]

Just make sure you clean it right away before the stuff hardens

Good point. That stuff hardens fast.