UL Prospector

Baybond® PU 330

Covestro makes their documentation available in the regions indicated below:

Baybond® PU 330 has anionic, non-ionic polyester urethane polymer, used as the film-forming component in glass fiber sizes. It is commonly used as the filmforming component in glass fiber sizing, especially for glass fibers used to reinforce thermosets. Glass fiber sizes based on Baybond® PU 330 have excellent filmforming properties and adhesion.

This product also remains stable when exposed to shear forces. As with any product, use of Baybond® PU 330 in a given application must be tested (including but not limited to field testing) in advance by the user to determine suitability.


Covestro manufactures adhesive raw materials for use in the production of contact and heat-activated adhesives, as well as reactive and hot-melt adhesives for the transportation, furniture, footwear, packaging, and construction markets. Bayer offers a comprehensive range based on polyurethane and polychloroprene, with specialty raw materials that offer UV light and weather resistance.

The information presented here was acquired by UL from the producer of the product or material or original information provider. However, UL assumes no responsibility or liability for the accuracy of the information contained on this website and strongly encourages that upon final product or material selection information is validated with the manufacturer. This website provides links to other websites owned by third parties. The content of such third party sites is not within our control, and we cannot and will not take responsibility for the information or content.

Where to Buy


Are you a distributor who is interested in being listed here? Contact us!