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

Covestro Bayhydur BL XP 2669 Waterborne Curing Agent

Covestro Bayhydur BL XP 2669 is a waterborne aliphatic polyisocyanate curing agent from the Bayhydur BL XP series, designed for high-performance two-component waterborne coatings. It offers excellent gloss retention, weather resistance, and low VOC content, enabling durable automotive refinish and industrial coating applications with fast curing and good compatibility.
  • covestro bayhydur bl xp 2669 waterborne curing agent_1508148c
  • covestro bayhydur bl xp 2669 waterborne curing agent_1508148c

Features Of Covestro Bayhydur BL XP 2669 Waterborne Curing Agent

  1. High-performance aliphatic polyisocyanate dispersion for low-VOC, waterborne two-component polyurethane systems.

  2. Excellent compatibility with a broad range of waterborne polyols and acrylic dispersions.

  3. Fast ambient-cure capability with good early hardness development and film formation.

  4. Outstanding gloss retention, weather resistance, and UV stability due to aliphatic chemistry.

  5. Low free monomer content (<0.1% HDI), meeting stringent regulatory and occupational safety requirements.

Typical Applications Of Covestro Bayhydur BL XP 2669 Waterborne Curing Agent

  1. Architectural and industrial maintenance coatings for metal and concrete substrates.

  2. Waterborne wood coatings requiring high clarity, hardness, and chemical resistance.

  3. Automotive refinish clearcoats and basecoat/clearcoat systems.

  4. Plastic coatings for interior automotive trim and consumer electronics housings.

  5. High-end furniture and flooring finishes demanding durability and low emission profiles.

Specifications Of Covestro Bayhydur BL XP 2669 Waterborne Curing Agent

Chemical TypeAliphatic polyisocyanate (HDI-based) dispersion
Product FormOpaque white to slightly yellow aqueous dispersion
AppearanceHomogeneous liquid, no sedimentation after gentle stirring
Non-Volatile Content (wt%)48–52%
pH Value7.5–8.5
Viscosity (mPa·s, 23°C, Brookfield LVT)150–350
Free HDI Monomer Content<0.1 wt%
Storage Stability (unopened, 5–30°C)≥12 months


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