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Quick question here. If I sandblast both sides of a blank, then fire to a higher temp than slump will the shelf side get the desired results or should I fire then flip? If I fire and then flip what happens to the prefired now shelf side? Thanks Ann

Ann Demko wrote:Quick question here. If I sandblast both sides of a blank, then fire to a higher temp than slump will the shelf side get the desired results or should I fire then flip? If I fire and then flip what happens to the prefired now shelf side? Thanks Ann

What are you tryimg to achieve? You can really only fire polish the up side of a blank.

The hotter you go, the more shelf/paper texture the back of your blank will pick up.

If you're slumping, sandblasting the back of your blank prior, will yield a nice matte finish.

Brock

Brock, Thanks for the reply. What I was looking for is a matte finish on both sides. So if I read you correctly, I can probably get the desired effects by sandblasting, then slumping. The slump temp wouldn't be hot enough to fire polish so I should still have the matte finish on top too, right? Ann

Ann Demko wrote:Brock, Thanks for the reply. What I was looking for is a matte finish on both sides. So if I read you correctly, I can probably get the desired effects by sandblasting, then slumping. The slump temp wouldn't be hot enough to fire polish so I should still have the matte finish on top too, right? Ann

Yes. It won't be quite as matte as it was prior to firing, but a low slump, 1150-1200, will give you a fairly matte surface that won't hold fingerprints and stains as badly as just sandblasted. Brock