Spray

[garyeng]

The number refers to the amount of fluid it allows though. The 1.4 tip is for finish coats and the 2.0 is more for primers.

Edit: Here is a link to a pretty good article on how a spray gun works. http://www.secondchancegarage.com/public/635.cfm

Gary

[Jim_J Lazy 3]

Carlos, the heavier the 'vis' (viscosity) of a material, the bigger the tip needs to be to successfully spray it, with out thinning. Generally, lacquers and sanding sealers thin out 15%-20%, and spay nicely with a 1.4 -2.0 tip, stains, varnishes, and some oils need up to 3.0 tips unles they can be thinned out a bit. I'm told that water-bourne finishes and latex's need 4.0. It takes fairly expensive 4 turbine HVLP rigs to lay down the higher vis products with out a lot of hassle......Jim@JLazy3

"The only thing certain in life ...is uncertainty!"

[I thought I unplugged it]

Thanks for the replies.

I've used the 2.0 with water based poly and good results thinning it 10%.

[I thought I unplugged it]

I have two air nozzles for my sprayer.

One is stamped 2.0 and the other 1.4. Does the number increase or decrease with the amount of air it allows through or is that just for allowing different fluid/needle heads through?

thanks