Crosslinkers that enhance leather fastness and durability

Stahl’s crosslinkers effectively improve fastness, primarily for base and top coats but also for sealer coats, for a wide range of applications in the automotive, shoes and leather goods, garments and upholstery. They include Aqualen®, Melio®, and XR products, and some carbodiimide crosslinkers, which meet even higher environmental standards.

ProductTypeMain features
Aqualen® AKUPolyaziridineImproves fastness.
Aqualen® IW-80.APolyisocyanateImproves fastness.
Melio® 09-R-179PolyureaImproves print retention, wet fastness and flexes.
Melio® 09-S-11PolyisocyanateImproves fastness - Promotes excellent flexibility.
XR-2514PolyaziridineImproves fastness.
XR-2521PolyaziridineImproves fastness.
XR-5525PolycarbodiimideImproves fastness.
XR-5540PolyisocyanateImproves fastness - Keeps finishing dull.
XR-5585PolyisocyanateImproves fastness - Keeps finishing dull - Inline dosing.
XR-13-436PolyisocyanateImproves fastness - UV fastness.
XR-13-820PolyisocyanateImproves fastness - Promotes excellent flexibility.
XR-13-906PolycarbodiimideImproves wet rub - Good print retention.

Find out all about our crosslinkers and their properties by downloading the catalog.

Crosslinkers to ensure fastness

Crosslinking works by connecting polymers through reactive chemistry, thus strengthening the network of a specific coating. As an addition to coating formulations, they provide a wide range of additional possibilities.

In particular, Stahl’s crosslinkers improve fastness in leather goods, adding high-performance protection to leather for a range of applications. They also offer other beneficial properties such as improved print retention and flexes, encouraging high flexibility, retaining dull finishes, and UV fastness.

Environmentally friendly carbodiimide enhancers

Our range of crosslinkers also includes two carbodiimide crosslinkers, which are much less sensitive to water and have a long pot life. Due to their high reactivity, curing with these crosslinkers can be done at room temperature and under typical oven conditions used for the drying of applied coatings.

Stahl’s crosslinkers are part of our Stahl Neo® portfolio, which means that they comply with the ZDHC MRSL. They can also be used with self-crosslinking products such as Aqualen® Top NG, to give your finish superior fastness and durability.