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Water Base Polyurethane and the Earlex Spray Station Pro 5000

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Forum topic by MLK posted 05-07-2009 05:28 AM 2973 views 0 times favorited 2 replies Add to Favorites Watch
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MLK

77 posts in 3277 days


05-07-2009 05:28 AM

I use water base Polyurethane to finish most of projects and brush marks has always been a problem. To try and solve this problem I bought the Earlex Spray Station Pro, I haven’t tried it yet so I don’t know what kind of results I will get. I was wondering if anyone has this unit and have any suggestions regarding thinning the Polyurethane, or what size needle to use, or anything else you could think of that would be helpful.


2 replies so far

View Douglas Bordner's profile

Douglas Bordner

4012 posts in 3530 days


#1 posted 05-07-2009 03:33 PM

Did it come with a viscosity cup? Are there recommendations from the finish manufacturer regarding dilution of the finish. I will grant you that my experience is solely based with a HVLP conversion gun, but I would try the finish un-diluted with the stock needle used to spray lacquer. If your pattern doesn’t flow right, dilute 10% with distilled water, and try shooting that. I have had excellent luck with Target Coatings Oxford Ultima spray lacquer (waterborne) right out of the can, an experience that others with true HVLP equipment have replicated and blogged on the Sawmill Creek woodworkers forum.

I think you are in for good things; excellent waterborne finishes are available out there with great wear characteristics, much greater safety (especially for the home/hobby shop) and much easier clean-up than with solvent-borne finishes.

-- "Bordnerizing" perfectly good lumber for over a decade.

View BlankMan's profile

BlankMan

1488 posts in 2819 days


#2 posted 05-08-2009 01:45 AM

I have the Earlex too but I haven’t used it yet. I also have the Rockler little gray one which I have used with oil based Polyurethane thinned only slightly.

Based on the viscosity I thinned the oil based Polyurethane too, I would venture to say you could use water based Polyurethane right out of the can because it’s viscosity is already less than oil based. I expect the Earlex to work better than the Rockler and the Rockler did just fine.

Just give it a shot out of the can on some scrap and let us know, I’m curious. Course, I could just do that too, and very well may because on one of my current projects I am planning on using water based Polyurethane. So eventually I will.

-- -Curt, Milwaukee, WI

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