A flooring contractor has experienced problems on four occasions over the years with his two-part polyurethane floor covering not bonding to our concrete slab-on-grade. He has said that the acid-etch process prior to installing the covering did not react very well with our slab surface, based on...
When making exposed-aggregate architectural precast channel column covers, we've noticed that after abrasive blasting, the texture on the down face differs from that on the vertical face. What causes this, and what can be done to correct it?
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