dcsimg Desmodur® 15 (NDI) Vulkollan®

The ultimate elastomer

Vulkollan® / Desmodur® 15 (NDI)

Vulkollan® is one of the most powerful elastomers in the market, combining highest mechanical load-bearing characteristics with highest dynamic load-bearing capacity. Therefore, Vulkollan® is preferably used for superior tasks in many technical fields.

Vulkollan

In a multistage process developed by Covestro, solid Vulkollan® is produced through chemical reactions between polyester polyols of the high-quality Vulkollan® range, Desmodur® 15 and glycols. Desmodur® 15 is the trade name for 1,5-naphthylene di-isocyanate (NDI) from Covestro. The ultra-high-performance elastomer covers a hardness range from approx. 65 Shore A up to 60 Shore D. Vulkollan® can only be manufactured by licensed processors. They produce wheels and castors to deal with highest dynamic loads, technical and semi-finished parts.

Cellular Vulkollan® is produced from Vulkollan® polyols, Desmodur® 15 and water. It covers a density range from approx. 300 up to 850 kg/m3 and combines high volume compressibility with minimal transverse expansion. Cellular Vulkollan® is used for the manufacture of superior damping elements, such as bumpers, springs and NVH (noise, vibration, harshness) elements.

Besides the classic multistage process, solid and cellular NDI-based cast polyurethane elastomers can also be manufactured from stable NDI-prepolymers offered by Covestro. These products are recommended especially for small- and mid-scale production.

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