LOCTITE CAT 43

Harmonization Code : 8529.90 | Parts solely or principally used for TV, radio, and transmission

LOCTITE CAT 43

Main features

  • Liquid Polyamine Epoxy Catalyst
  • Chemical-Resistant Cured Systems
  • LOCTITE Encapsulant Compatibility

Product Description

LOCTITE® CAT 43 is a liquid amine-based epoxy catalyst designed for use with compatible epoxy resin systems. The catalyst provides effective curing performance, excellent adhesion development, and strong chemical resistance in demanding encapsulation, potting and industrial bonding applications. Its polyamine chemistry delivers robust cured-system properties while supporting a variety of electronic, electrical and industrial epoxy formulations.

Key Features & Benefits

  • Polyamine-based epoxy catalyst technology.
  • Liquid formulation for easy mixing and processing.
  • Compatible with epoxy encapsulation and potting systems.
  • Good adhesion development and cure efficiency.
  • Suitable for industrial and electronic applications.
  • Water-soluble and highly reactive amine chemistry.
  • Designed for professional-use epoxy systems.

Recommended Applications

  • Epoxy resin curing systems.
  • Electronic encapsulation and potting compounds.
  • Industrial bonding and assembly.
  • Electrical insulation systems.
  • General-purpose epoxy formulations.
Product Family

LOCTITE CAT 43

Catalog Product

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TDS, SDS & Technical Documents

Technical Specifications

No specifications available.

Additional Information

Technical Properties

As-Supplied / Before-Processing Properties

Property Value Unit Condition
Product Type Epoxy Catalyst Polyamine Curative
Appearance Yellow Liquid As supplied
Odor Amine Typical
Density 0.99 g/cm³ 20°C
Initial Boiling Point 318 °C Typical
Flash Point >93.3 °C Closed Cup
pH 10 - 11 10 g/L in water at 20°C
Water Solubility Soluble 20°C
Technical Properties

After-Processing / Final-State Properties

Property Value Unit Condition / Method
Primary Component 50 - 100 % Tetraethylenepentamine Fraction
Skin Corrosion Classification Category 1B H314
Eye Damage Classification Category 1 H318
Skin Sensitization Category 1 H317
Reproductive Toxicity Category 1B H360D
STOT Repeated Exposure Category 1 H372
Environmental Classification Aquatic Chronic 2 H411
VOC Content <3 % 2010/75/EC

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