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

Covestro Desmodur N 75 Curing Agent

Covestro Desmodur N 75 is a premium aliphatic polyisocyanate curing agent from the Desmodur N series, designed for high-performance two-component polyurethane coatings. It delivers excellent weather resistance, gloss retention, and low-yellowing properties. Widely used in automotive clearcoats, industrial finishes, and plastic coatings where durability and optical clarity are critical. Compatible with common OH-functional resins and offers balanced reactivity and pot life.
  • covestro desmodur n 75 curing agent_c2bf38e1
  • covestro desmodur n 75 curing agent_c2bf38e1

Features Of Covestro Desmodur N 75 Curing Agent

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

  2. Low viscosity enables easy handling, precise metering, and compatibility with standard spray and mixing equipment.

  3. Provides outstanding chemical resistance, including to solvents, cleaning agents, and mild acids.

  4. Enables fast ambient-cure or accelerated heat-cure performance for high-throughput industrial finishing.

  5. Non-yellowing formulation ideal for topcoats requiring long-term gloss and clarity retention.

Typical Applications Of Covestro Desmodur N 75 Curing Agent

  1. Automotive clearcoats and OEM refinish coatings.

  2. Industrial wood and plastic coatings for furniture and consumer electronics.

  3. High-performance coil coatings for architectural and appliance substrates.

  4. UV-resistant protective coatings for outdoor signage and transportation components.

  5. Premium can and general metal packaging coatings requiring food-contact compliance support.

Specifications Of Covestro Desmodur N 75 Curing Agent

Chemical TypeAliphatic polyisocyanate (hexamethylene diisocyanate–based)
Product FormLiquid
AppearanceClear, pale yellow liquid
NCO Content (wt. %)13.5 – 14.5
Viscosity (25 °C, mPa·s)800 – 1,200
Density (20 °C, g/cm³)1.16 – 1.19
Flash Point (PMCC, °C)125 – 135
Solvent Content (wt. %)~35 (in xylene/butyl acetate blend)


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