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I haven't sandblasted hdu for quite awhile, last time I think I pre-painted with one shot, blasted, primed painted background and removed stencil then cleaned up. I am using CoraFoam now, smoother dense HDU wanted to know if I should just apply stencil and blast then remove stencil and prime and paint with exterior acrylics. How are others doing it these days?
-------------------- Jeff Wisdom SignWorks info@oregonsignworks.com Posts: 450 | From: Oregon | Registered: Dec 2005
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If you are using 15lb I apply a thin coat of plain old shellac. It dries in about 15 minutes and is an excellent base coat. Once in a while you may have some adhesive left behind. A light wish down with shellac thinner will leave a nice, clean surface.
Good luck.
-------------------- Joe Crumley Norman Sign Company 2200 Research Park Blvd. Norman, OK 73069 Posts: 1428 | From: 2200 Research Park Blvd. | Registered: Sep 2001
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