Impraperm® DL 3746 by Covestro is an anionic aliphatic polyester-polyurethane dispersion. Suitable for the formulation of windproof and waterproof yet air-permeable textile coatings for use in outerwear, weatherproof clothing, sportswear and liner materials. It is supplied as low-viscosity dispersion in water with a solids content of ~40%. Impraperm® DL 3746 exhibits good adhesion, high water vapor permeability, high lightfastness. Recommended storage temperature is 20°C. It has a shelf life of six months.
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Impraperm® DL 3746 XP properties
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| Properties | Value & unit | Test condition | Test method |
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