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Understanding Hardness in Paints and Coatings How to Measure Paint and Coating Hardness Welcome to this week’s edition of Shark Bites, the ultimate resource for professionals in the bathtub, tile, and countertop refinishing industry. Here at Shark Grip Coatings, we understand that mastering the technicalities of your craft is key to delivering high-quality, long-lasting finishes. This week, we're diving into a crucial aspect of paint and coating performance: hardness. Why Hardness Matters …