LOCTITE H8100

Harmonization Code : 3403.19 | Lubricating Preparations (With 70% or More Petroleum Oils) For Automotive and Other Uses

LOCTITE H8100

Main features

  • Fast 18-Minute Steel Fixture
  • High-Elongation Structural Acrylic
  • 10:1 Non-Sag Mixing

Product Description

LOCTITE AA H8100 is a non-sag, two-part methacrylate structural adhesive mixed 10:1 by volume for room-temperature bonding of metals, plastics, and composites. The system has a 15-minute working time at 25 deg C and reaches fixture strength in 18 minutes on grit-blasted mild steel under ISO 4587. Its cured material has 20% elongation at break, Shore D 62 hardness, a typical Tg of 75 deg C, and lap shear strength of at least 19.31 N/mm^2 on steel after 24 hours at 22 deg C. The resin is yellow, the hardener is blue, and the mixed adhesive is green.

Key features

  • Non-Sag Methacrylate Mixing: The two-part system uses a 10:1 by-volume mix ratio.
  • Working and Fixture Times: Working time is 15 minutes at 25 deg C; fixture time is 18 minutes on grit-blasted mild steel.
  • High-Elongation Cured Acrylic: Cured material reaches 20% elongation at break with Shore D 62 hardness.

Applications

Structural bonding of metals, plastics, and composite substrates.

Technical Specifications

General Properties
Appearance
Green
Chemistry Type
Methacrylate
Component System
Two Part (Resin | Hardener)
Specific Gravity
0.97
Thermal Properties
Glass Transition Temperature (Tg)
75 °C
Mechanical Properties
Elongation
20 %
Other Properties
Storage Temperature
2°C to 8 °C

Additional Information

Technical properties

As-supplied / before-processing properties

Part A, Part B, and mixed-material values remain state-specific; the 10:1 mix ratio is by volume.

PropertyValueUnitMethod / condition
Mix ratio, Part A:Part B10:1-By volume
Specific gravity, mixed0.97-Typical; 25 deg C
Viscosity, mixed15,360mPa sTypical; cone and plate CP50-1, 25 deg C, shear rate 50 s^-1
Working time15minutesTypical; 25 deg C, maximum time before assembly on steel, aluminum, and polyethylene
Fixture time18minutesTypical; ISO 4587, grit-blasted mild steel
Technical properties

After-processing / final-state properties

PropertyValueUnitMethod / condition
Glass transition temperature75deg CTypical; ISO 11359-2
Shore hardness62Durometer DTypical; ISO 868
Elongation at break20%Typical; ISO 527-2
Tensile modulus770N/mm^2Typical; ISO 527-2
Lap shear strength on steel>=19.31N/mm^2Typical performance; ISO 4587, cured 24 hours at 22 deg C

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