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Known as 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

Color Clear: Ultra Clear
Fixture Time Max 20
Fixture Time Min 5
Fixture Time Unit sec.
Full Cure Temperature 77 °F
Gap Fill 0.005905511811023622 in.
Shear Strength Unit, Grit Blasted Steel psi
Shear Strength, Grit Blasted Steel 2900
Specific Gravity 1.05 g/l
Specific Gravity Temperature 25 °C
Technology Ethyl
Temperature Max 180
Temperature Min -65
Temperature Unit °F
Viscosity 2 mPa.s (cP) Brookfield
Viscosity Temperature 77 °F