Spraying polyurethane varnish

  • Advertise with us

« back to Finishing forum

Forum topic by ashahidan posted 11-17-2013 07:26 AM 1040 views 0 times favorited 1 reply Add to Favorites Watch
View ashahidan's profile


64 posts in 3337 days

11-17-2013 07:26 AM

Dear friends,

i am going to spray a table with clear polyurethane varnish. I will be using a compress air sprayer.

I have bought a a liter of ICI polyurethane varnish and there is no instruction to show how much thinner I should add to the varnish before spraying.The instruction only says I should add 20% thinner for the first coat if I were to use a brush. And that is all.

Please let me know how much thinner I should mix with the varnish .


-- asm

1 reply so far

View Fred Hargis's profile

Fred Hargis

5236 posts in 2732 days

#1 posted 11-17-2013 01:19 PM

That’s not a straight forward answer. It depends on the gun itself, and the size of the opening in the needle set as well as air pressures and several other things. What I suggest is to start at a low level, and test it it. If it doesn’t spray smoothly, increase the thinner slightly and try again.

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

Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics