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

Borchers Borchi Kat 0243 Bismuth Catalyst

Borchers Borchi Kat 0243 is a high-performance bismuth-based catalyst from Borchers’ Borchi Kat series, designed for selective esterification and transesterification in coatings, polyurethanes, and bio-based polymers. It offers low toxicity, excellent thermal stability, and superior catalytic efficiency versus traditional tin or lead alternatives.
  • borchers borchi kat 0243 bismuth catalyst_2d7e381f
  • borchers borchi kat 0243 bismuth catalyst_2d7e381f

Features Of Borchers Borchi Kat 0243 Bismuth Catalyst

  1. Highly selective bismuth-based catalyst for urethane and polyester polyol reactions.

  2. Low toxicity alternative to traditional tin or mercury catalysts, supporting REACH-compliant formulations.

  3. Excellent storage stability with minimal sedimentation under standard warehouse conditions.

  4. Enables reduced reaction temperatures and shorter gel times in polyurethane foam production.

  5. Compatible with a broad range of polyols, isocyanates, and auxiliary additives without adverse interactions.

Typical Applications Of Borchers Borchi Kat 0243 Bismuth Catalyst

  1. Flexible and rigid polyurethane foams for automotive and furniture applications.

  2. Coating systems requiring low-VOC, non-staining catalysis for industrial finishes.

  3. Adhesives and sealants where delayed reactivity and controlled pot life are critical.

  4. Cast elastomers and thermoplastic polyurethane (TPU) prepolymers.

  5. Polyester resin modification for enhanced cure kinetics in composites manufacturing.

Specifications Of Borchers Borchi Kat 0243 Bismuth Catalyst

Chemical TypeBismuth carboxylate complex
Product FormLiquid solution
AppearanceClear to slightly hazy, amber-colored liquid
Primary ApplicationsPolyurethane foam, coatings, adhesives, elastomers
Key FeaturesNon-toxic, REACH compliant, tin-free, halogen-free
BenefitsImproved worker safety, reduced regulatory burden, consistent batch-to-batch performance
Storage ConditionsStore in original sealed container at 15–25 °C; protect from moisture and direct sunlight
Shelf Life24 months from date of manufacture under recommended storage


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