UL Prospector


Evonik Operations GmbH, BL Crosslinkers makes their documentation available in the regions indicated below:

VESTAMIN® A 139 is a liquid, blocked crosslinker for polyisocyanate resins based on a cycloaliphatic diamine. The crosslinking with polyisocyanate resins occurs under the influence of moisture by releasing the original diamine, which is spontaneously reacting with the isocyanate groups under formation of urea structures.

VESTAMIN® grades are curing agents for epoxy resin systems, chain extenders for polyurethane systems, raw materials for polyamides and accelerators for moisture curing PUR systems.


The Evonik Crosslinkers Business Line offers a broad range of products and competences for coatings and adhesives, as well as for high-performance elastomers, civil engineering and composites. Besides products based on isophorone chemistry the portfolio contains a full toolbox of amine curing agents for ambient and heat cure applications. The products are mainly used in industrial applications due to the mechanical strength, durability, chemical resistance and excellent adhesion properties. Our experienced technical specialists have an in-depth understanding of your market requirements and are able to provide the right level of technical service and support you need.

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Evonik Operations GmbH, BL Crosslinkers

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