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Water-cleanup Primers for HVLP Spraying

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Forum topic by paxorion posted 09-10-2014 06:40 PM 1611 views 0 times favorited 3 replies Add to Favorites Watch
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paxorion

1102 posts in 1510 days


09-10-2014 06:40 PM

Topic tags/keywords: hvlp finishing paint primer question spray gun

My first foray into spraying finish (I have the HF HVLP) was with Zinsser BIN primer. The results were spectacular straight out of the can, but the primer is more expensive than other primers. Not to mention the need for DNA cleanup doesn’t help with the cost per use.

Knowing that I have many painted projects in the horizon (my wife likes painted projects), I have 2 questions:
  1. What are some suggestions/recommendations for water-cleanup primers for HVLP spraying? I don’t mind having to thin and spray multiple coats to get the coverage needed.
  2. Has anyone successfully sprayed Zinsser 1-2-3 primer through a HVLP? I have about 2/3 of a gallon that I can experiment with. Out of the can it is quite thick, and from what I have been able to find, it can be thinned up to ~7-10% with water. Any recommendations on what I can do in addition to thinning with water? Would Floetrol be a good additive to try out?

-- paxorion


3 replies so far

View Fred Hargis's profile

Fred Hargis

3944 posts in 1958 days


#1 posted 09-10-2014 06:45 PM

Actually, there is a better and cheaper way to clean up BIN in the sprayer: use household ammonia. To me, it does a better job anyway (actually destroys shellac), but you may get some stains on aluminum parts from the ammonia (no damage, just stains). But BIN also comes in some water borne formulas, so if you want to switch you might give them a look as well.

-- Our village hasn't lost it's idiot, he was elected to congress.

View Earlextech's profile

Earlextech

1159 posts in 2155 days


#2 posted 09-10-2014 06:48 PM

1-2-3 sprays great, thinned about 10% with water. Floetrol (works best with latex) breaks the surface tension of the droplets and helps them to level out. (2oz per quart) Using both together is fine because they do two different things.
The real trick is to stir using a paddle mixer in a drill at medium speed for 1 -2 minutes. This will break up the molecules and allow it to spray better.

-- Sam Hamory - The project is never finished until its "Finished"!

View paxorion's profile

paxorion

1102 posts in 1510 days


#3 posted 09-10-2014 07:11 PM


Actually, there is a better and cheaper way to clean up BIN in the sprayer: use household ammonia. To me, it does a better job anyway (actually destroys shellac), but you may get some stains on aluminum parts from the ammonia (no damage, just stains). But BIN also comes in some water borne formulas, so if you want to switch you might give them a look as well.

- Fred Hargis

I may have to try it out next time, when I run out of my gallon of DNA.


1-2-3 sprays great, thinned about 10% with water. Floetrol (works best with latex) breaks the surface tension of the droplets and helps them to level out. (2oz per quart) Using both together is fine because they do two different things.
The real trick is to stir using a paddle mixer in a drill at medium speed for 1 -2 minutes. This will break up the molecules and allow it to spray better.

- Earlextech

Great advice. I’ll have to try it out when I next get a free moment to do some spraying.

-- paxorion

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