Sprayable sanding sealer

[Gefell]

What kind of sanding sealer/filler can you use with an HVLP gun?

 

[Cagey]

I imagine any, but the one I've been using with an HVLP rig is the Colortone product from Stewart MacDonald. However, in looking for a link for you it seems they're not selling it anymore. Or, probably more to the point, they're not having anybody private label it for them anymore. What they're selling now is the Seagrave Vinyl Sealer product. My guess is it's the same stuff, returned to its original name to draw more hits from the search engines. Private labels make the resellers feel special, but if they're not widely known they can have a negative impact on sales on the Internet.

 

[Patrick from Davis]

Tonar likes Zinsser thinned with denatured alcohol.  He recently (today) answered a question about this on this board (Vintage Amber Stain post.)
Patrick

 

[Tonar8352]

I only use the Zinsser if I'm vintage tinting a neck.

I do not use sanding sealer at all unless I want a to have a paint failure which means I want the finish to check and crack like a vintage finish for the purpose of doing a relic.  If I do use sanding sealer I just use cheap production sanding sealer. 

Normally I do a couple of wash coats, (heavily thinned) and then do full wet coats after that.  Sanding sealer was designed for production to build fast and level sand easily so they could us less finish.

 

[Patrick from Davis]

I stand corrected.
Patrick

 

[Gefell]

what ratio or % would you thin that Zinsser?

 

[Tonar8352]

I would not thin it.

 

[Gefell]

Tonar, when you say "cheap production sanding sealer" what do you recommend?

 

[Tonar8352]

Where you live will have a lot to do with what you can get because of Air Resource Regulations.  Let me know what state you are in and I might be able to steer you in the right direction.

 

[Gefell]

Texas

 

[Tonar8352]

You should have a Kelly Moore or Sherwin Williams paint store close to you. Call and see if they have production grade sanding sealer. I would try to get 680 VOC if I could but I can make 550 VOC work. If it goes to 275 VOC, which it has in California, I don't bother. The people in the store should know what the VOC content on the lacquer is.  Remember that production grade will yellow like a vintage guitar finish and if you don’t want that ask for water white, they will know what you are talking about.