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

Evonik VESTAGON BF 1321 PU Powder Curing Agent

Evonik VESTAGON® BF 1321 is a high-performance polyurethane powder curing agent from the VESTAGON® series, designed for durable, low-cure-temperature coatings. It enables excellent mechanical properties, chemical resistance and gloss retention in architectural and industrial applications. Compatible with hydroxyl-functional polyester resins, it supports sustainable manufacturing with reduced energy consumption and VOC-free processing.
  • evonik vestagon bf 1321 pu powder curing agent_fb48f1b1
  • evonik vestagon bf 1321 pu powder curing agent_fb48f1b1

Features Of Evonik VESTAGON BF 1321 PU Powder Curing Agent

  1. High reactivity with hydroxyl-functional polyester and acrylic powder resins for fast cure at low temperatures.

  2. Enables excellent mechanical properties including hardness, flexibility, and chemical resistance in cured coatings.

  3. Low volatility and non-yellowing performance ensure superior color stability and long-term durability.

  4. Designed for 100% solids powder systems — zero VOC emissions and compliant with stringent environmental regulations.

  5. Consistent particle size distribution supports smooth electrostatic application and uniform film formation.

Typical Applications Of Evonik VESTAGON BF 1321 PU Powder Curing Agent

  1. Architectural aluminum extrusions for curtain walls and window frames.

  2. Automotive exterior trim and under-hood components requiring thermal and chemical resilience.

  3. Industrial appliances such as ovens, refrigerators, and HVAC enclosures.

  4. Office furniture and metal office partitions with high aesthetic and scratch resistance demands.

  5. Outdoor lighting fixtures and street furniture exposed to UV and weathering.

Specifications Of Evonik VESTAGON BF 1321 PU Powder Curing Agent

Chemical TypeBlocked aliphatic polyisocyanate (uretdione-type)
Product FormFree-flowing white to off-white powder
AppearanceHomogeneous crystalline powder
Primary ApplicationsCuring agent for hydroxyl-functional polyester and acrylic powder coatings
Key FeaturesLow-cure temperature capability (160–180 °C), high storage stability, excellent flow and leveling
BenefitsReduced energy consumption, enhanced edge coverage, improved gloss retention
Storage ConditionsStore in cool, dry place below 25 °C; protect from moisture and direct sunlight
Shelf Life12 months from date of manufacture when stored under recommended conditions


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