TAKE protective clothing, safety goggles and a respirator next time you visit a bar. Richard Platt recently bought some Dry-Treat Marble and Porcelain Sealer to treat a granite work surface. The instructions sternly warned him not to take it internally, to use a positive-pressure ventilator if ventilation is inadequate when he is working, and to wear suitable solvent-resistant gloves, protective clothing, safety goggles and an organic vapour respirator during application. A check on the product’s safety data at confirmed the need for these measures. “Significant ingestion,” it warned, “can result in depression of central nervous system,”…
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