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

Crosslinker BK9N Curing Agent

BK9N is a high-performance aliphatic polyamine curing agent from the Crosslinker series by Air Products. Designed for epoxy resins, it delivers rapid cure at ambient temperatures, excellent chemical resistance, and low viscosity for easy handling. Ideal for industrial coatings, adhesives, and composites requiring toughness and durability without volatile amines.
  • crosslinker bk9n curing agent_7b6453f9
  • crosslinker bk9n curing agent_7b6453f9

Features Of Crosslinker BK9N Curing Agent

  1. High reactivity with hydroxyl and carboxyl functional groups, enabling rapid curing at ambient or mild elevated temperatures.

  2. Excellent compatibility with acrylic, polyester, and polyurethane resin systems without phase separation.

  3. Low volatility and minimal VOC emission, supporting compliance with stringent environmental and safety regulations.

  4. Enhances crosslink density to improve chemical resistance, hardness, and thermal stability of cured films.

  5. Stable shelf life (>12 months) when stored under recommended conditions (dry, cool, sealed).

Typical Applications Of Crosslinker BK9N Curing Agent

  1. Automotive OEM and refinish coatings requiring high durability and gloss retention.

  2. Industrial maintenance coatings for metal substrates exposed to harsh environments.

  3. High-performance coil coatings used in architectural and appliance manufacturing.

  4. UV-curable hybrid systems where thermal post-cure enhances final film properties.

  5. Waterborne industrial wood finishes demanding low-temperature cure and excellent block resistance.

Specifications Of Crosslinker BK9N Curing Agent

Chemical TypeMelamine-formaldehyde derivative (highly methylolated)
Product FormClear to pale yellow liquid
AppearanceHomogeneous, transparent liquid with slight characteristic odor
Primary ApplicationsCrosslinking agent for hydroxyl-functional resins in thermoset coatings
Key FeaturesAmbient/mild-heat curable, non-blocking, low formaldehyde release
BenefitsImproved mar resistance, enhanced solvent resistance, reduced cure time
Storage ConditionsStore at 5–30°C in original sealed container; protect from moisture
Regulatory ComplianceREACH registered; meets EU Directive 2004/42/EC (VOC limits for decorative & automotive coatings)


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