Polyurethanes

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  • It is commonly used in the manufacture of plastics, insulation, and coatings. Polyurethane is also used in the production of adhesives, sealants, and elastomers. In addition, polyurethane is often used as a food additive and as a component in medical devices.
The A scale is used for softer compounds; at Gallagher, the A scale is used for compounds from 55A up to 95A. The D scale is used for harder compounds from 50D up to 80D. There is no linear relationship between the A scale and the D scale, however, a 95A is just slightly softer than a 50D.

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