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Loctite 420 Super Bonder Instant Adhesive

Features and Benefits


Transparent, colorless, ethyl-based general purpose instant capillary adhesive.

LOCTITE® 420 is a transparent, colorless, general purpose, capillary, ethyl-based instant adhesive. Suitable for metals, rubbers and plastic, it is also suitable for polyolefins in combination with Primer LOCTITE® SF 770 or LOCTITE® SF 7239. It has a fixture time of 5 - 20 secs.
  • Cures very quickly when confined between two surfaces
  • Ideal for bonding small to medium-size parts
  • Excellent adhesion to most substrates
  • Suitable for metals, rubbers and plastics
  • Fixture time of 5 - 20 secs.
  • Solvent-free
  • Capillary action
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Documents and Downloads

Technical Information

Agency Approvals / Specifications Commercial Item Std. A-A-3097
Color Clear
Cure Type Moisture Cure
Fixture Time 20 sec.
Full Cure Temperature (°C) 25
Full Cure Temperature (°F) 77
Full Cure Time 24 hr.
Gap Fill (in.) 0.002
Key Characteristics General Purpose, Usability: Easy to Use
Number of Components 1 Part
Physical Form Liquid
Shear Strength, Grit Blasted Steel (psi) 2900
Specific Gravity (g/l @ 25°C) 1.05
Substrates Plastic
Technology Ethyl Cyanoacrylate
Temperature Range (°C) -54 to 82
Temperature Range (°F) -65 to 180
Viscosity (Brookfield mPa.s (cP)) 2
Viscosity Temperature (°C) 25
Viscosity Temperature (°F) 77