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Color-Image Repair Product Patented by DAP

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By: KERRY PIANOFORTE

Editor, Coatings World, Coatings World

l Patent No. U.S. 6,531,528 B1
DAP Products Inc. has received a patent for a ready-to-use patch repair product that includes a color change indicator. After the product has dried, the color changes to signal that, if desired, the worker can perform other operations such as painting, sanding, etc. on the surface. In one aspect of the invention, a substantially ammonia and ammonium salt-free latex polymer is used as the resin binder component. This provides enhanced color stability in the stored product.

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