[Handyman]

I have been using Polycyclic since it hit the market, I myself love it. I am going to try to spray it out of a low pressure / High volume spray gun. I want to know if and how I need to thin the poly in order to spray it?

 

[Steve Neul]

I spray it without thinning it at all.

 

[cabinetman]

Depending on the brand, many don't need to be thinned. I usually add about ½" of water at the bottom of the cup before mixing in the media. I like applying thin coats. Guns seem to do much better atomizing when the WB poly is reduced somewhat. Try it both ways on a sample and see what you think.

I will warn you. Spraying clear WB poly with an HVLP, produces very little visual appearance on how much spray is being shot. It would be to your benefit to get as much light on the subject, so you can get a "glare" off the wet line to know how wet the path is getting.

.

 

[HowardAcheson]

You don't want to thin a waterborne acrylic finish. Adding water will upset the chemistry of the product. If the label says it can be thinned, do not thin it more than stated on the label.

 

[Handyman]

Ok today was the day. I started out with a cup of water in the spray gun to get the feel of what it was going to do. It also gave me time to learn what each valve and knob did and how it affected how it sprayed. I blew all the water out and then filled it with Semi-gloss Polycyclic and started spraying. I cant say I did anything right, but the outcome was what I was after. I dont know if I am ever going to buy another paint brush again. Thanks for yalls help