Baybond 2011L Aliphatic polyurethane Bayer MaterialScience Polyurethane (PU) - Polyurethane dispersions (PUDs) Baybond 2011L is a solvent-free, aliphatic polyurethane dispersion in water. Baybond 2011L is extremely supple, exhibits good adhesion to a variety of substrates and can be readily frothed by mechanical means such as an Oakes Foamer. Baybond 2011L is a film former at temperatures slightly above ambient. In order to avoid mudcracking and achieve ultimate properties, films should be dried at temperatures between 250° F and 325° F until thoroughly fused. Baybond 2011L is primarily used as a frothable interlayer / adhesive, a saturant and binder for non wovens, a blending resin for other latexes, and for fiberglass sizing. As with any product, use of Baybond 2011L in a given application must be tested (including but not limited to field testing) in advance by the user to determine suitability. Aliphatic polyurethane resin. Exhibits good adhesion to a variety of substrates.