Bruce,
I don't have any experience with the types of seals in your average tank sprayer (re: thinners eating them) but then again it's your tank sprayer in jeopardy. Know what I'm saying? Just might be a good time to test that theory, on yours...... ;^)
I have done some research on the Wagner thing several years ago and if memory serves they didn't have a tip size big enough to handle the high solids of ZR.
I will say that ZR brushes on like nobody's business and if kept thinned some, it flows out very nicely too....... FWIW
Happy holidays y'all, pick one, any one.
Bruce Palmer
[email protected]