|Forum topic by Twisted Family Crafts||posted 625 days ago||4385 views||0 times favorited||10 replies|
625 days ago
I am using Minwax Helmsman Spar Urethane thinned with 30% mineral spirits and spraying it on cedar with an air detail sprayer. When it dries it has speckles in it and is rough almost like it has sand in it. We are blowing everything off and using tack cloth on it and sanding with 220 before spraying and sanding with 320 after the 3rd coat and before the final coat. The same thing happened when I tried to brush it on with the thinned poly. I brushed it with out being thinned and it looks better but has brush strokes in it and more runs because I could not control it. Is there any other urethane that will spray better? It does not need to be exterior. We use about a gallon a month. Spray cans are too expensive for the amount we use.
Is there a special way to treat cedar before coating it?
Here is a link to the things we are making https://www.facebook.com/TwistedFamilyCraftsOK
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