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

DY-20 Organobismuth Catalyst

DY-20 Organobismuth Catalyst is a high-performance bismuth-based catalytic agent from the DY Series by Dongying Chemical, designed for eco-friendly polyurethane synthesis. It replaces toxic heavy-metal catalysts like tin, offering low volatility, excellent hydrolytic stability, and precise reaction control. Widely used in CASE applications—coatings, adhesives, sealants, and elastomers—it ensures consistent foam morphology and meets stringent RoHS/REACH requirements.
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Features Of DY-20 Organobismuth Catalyst

  1. Low-toxicity organobismuth compound with significantly reduced environmental and handling hazards compared to traditional heavy-metal catalysts.

  2. High catalytic activity for polyurethane foam formation at ambient to moderate temperatures (20–60 °C).

  3. Excellent hydrolytic stability—resists decomposition in moisture-containing formulations.

  4. Compatible with a broad range of polyols, isocyanates, and blowing agents without adverse side reactions.

  5. Non-corrosive to standard stainless steel and aluminum processing equipment.

Typical Applications Of DY-20 Organobismuth Catalyst

  1. Flexible polyurethane slabstock foam production for bedding and automotive seating.

  2. Rigid polyurethane and polyisocyanurate (PIR) foams used in building insulation panels.

  3. Integral skin and microcellular foams for automotive trim and gasketing applications.

  4. Water-blown foam systems requiring low-emission, VOC-compliant catalysts.

Specifications Of DY-20 Organobismuth Catalyst

Chemical TypeOrganobismuth carboxylate complex
Product FormClear, viscous liquid
AppearancePale yellow to amber transparent liquid
Bismuth Content (as Bi)12.0–13.5 wt%
Density (25 °C)1.42–1.48 g/cm³
Viscosity (25 °C)250–400 mPa·s
Flash Point (PMCC)165 °C minimum
Storage Stability≥24 months at 5–30 °C under inert atmosphere


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