Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Covestro Desmodur VL 50 Curing Agent

Covestro Desmodur VL 50 is a low-viscosity aliphatic polyisocyanate curing agent from the Desmodur VL series, designed for high-performance 2K polyurethane coatings requiring excellent weather resistance, gloss retention, and fast ambient-temperature cure without catalysts.
  • covestro desmodur vl 50 curing agent_3e589b64
  • covestro desmodur vl 50 curing agent_3e589b64

Features Of Covestro Desmodur VL 50 Curing Agent

  1. Aliphatic polyisocyanate-based curing agent offering excellent UV stability and color retention.

  2. Low-viscosity liquid formulation enabling easy handling, precise metering, and efficient mixing with hydroxyl-functional resins.

  3. Provides fast ambient-cure kinetics without requiring elevated temperatures or catalysts.

  4. Delivers superior chemical resistance, hardness, and abrasion resistance in final coatings.

  5. Compliant with REACH and meets stringent VOC regulations for industrial coating applications.

Typical Applications Of Covestro Desmodur VL 50 Curing Agent

  1. Automotive clearcoats and OEM topcoats requiring high gloss and long-term weatherability.

  2. Industrial maintenance coatings for metal and plastic substrates exposed to outdoor conditions.

  3. High-performance wood finishes demanding clarity, hardness, and non-yellowing performance.

  4. Railway and bus exterior coatings where UV resistance and mechanical durability are critical.

  5. Plastic coatings for automotive interior parts and consumer electronics housings.

Specifications Of Covestro Desmodur VL 50 Curing Agent

Chemical TypeAliphatic polyisocyanate (hexamethylene diisocyanate–based)
Product FormClear, low-viscosity liquid
AppearanceColorless to pale yellow, transparent liquid
NCO Content (wt %)17.5 – 18.5%
Viscosity at 25 °C300 – 500 mPa·s
Density at 20 °C1.14 – 1.16 g/cm³
Flash Point (PMCC)125 – 135 °C
Primary ApplicationsTwo-component polyurethane coatings for automotive, industrial, and wood finishing


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