LOCTITE H8000

Harmonization Code : 3907.30.00.40 | Epoxy Mold Compounds containing by weight more than 70 % silicon dioxide

LOCTITE H8000 LOCTITE H8000

Main features

  • Visible 10:1 Mix Confirmation
  • 30-Minute Assembly Window
  • Resilient Peel and Impact Performance

Product Description

LOCTITE AA H8000 is a two-component, non-sag methacrylate structural adhesive for metals, plastics and composites. Yellow resin and blue hardener mix at 10:1 by volume to create a green adhesive that visibly indicates mixed material. At 25 deg C, the mixed adhesive has a typical cone-and-plate viscosity of 8,850 mPa s and a 30 minute working time on steel, aluminum and polyethylene. Fixture time on grit-blasted mild steel is typically 25 to 30 minutes. The cured adhesive combines resilient bonding with peel, impact and lap-shear performance across specified substrates.

Key features

  • Visible green mix: Yellow resin and blue hardener produce a green mixed adhesive for process confirmation.
  • 30-minute working time: The mixed system provides a 30 minute assembly window at 25 deg C on the stated substrates.
  • Non-sag structural bonding: The methacrylate system supports controlled application on metals, plastics and composites.

Applications

Applications include structural bonding of metals, plastics and composites, including steel, aluminum, stainless steel, FRP, gelcoat and ABS.

Product Family

LOCTITE H8000

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TDS, SDS & Technical Documents

Technical Specifications

Physical Properties
Viscosity
Viscosity is a measurement of a fluid’s resistance to flow. Viscosity is commonly measured in centiPoise (cP). One cP is defined as the viscosity of water and all other viscosities are derived from this base. MPa is another common unit with a 1:1 conversion to cP. A product like honey would have a much higher viscosity -around 10,000 cPs- compared to water. As a result, honey would flow much slower out of a tipped glass than water would. The viscosity of a material can be decreased with an increase in temperature in order to better suit an application
8,850 mPa.s
Viscosity (Part A)
6,700 mPa.s
Viscosity (Part B)
6,530 mPa.s
General Properties
Appearance
Appearance at room temperature.
Green
Chemistry Type
Methacrylate
Mix Ratio
The amount of a constituent divided by the total amount of all other constituents in a mixture
10 : 1
Specific Gravity
Specific gravity (SG) is the ratio of the density of a substance to the density of a reference substance; equivalently, it is the ratio of the mass of a substance to the mass of a reference substance for the same given volume. For liquids, the reference substance is almost always water (1), while for gases, it is air (1.18) at room temperature. Specific gravity is unitless.
0.98
Work life @25°C
Work life is the amount of time we have to work with a material until it is no longer able to be easily worked and applied on a substrate. It is based on the change in viscosity and it can rely on the application requirements.
0.5 hours
Mechanical Properties
Elongation
Elongation is the process of lengthening something. It is a percentage that measures the initial, unstressed, length compared to the length of the material right before it breaks. It is commonly referred to as Ultimate Elongation or Tensile Elongation at break.
13 %
Peel Strength
8
Thermal Properties
Glass Transition Temperature (Tg)
The glass transition temperature for organic adhesives is a temperature region where the polymers change from glassy and brittle to soft and rubbery. Increasing the temperature further continues the softening process as the viscosity drops too. Temperatures between the glass transition temperature and below the decomposition point of the adhesive are the best region for bonding. The glass-transition temperature Tg of a material characterizes the range of temperatures over which this glass transition occurs.
71 °C
Curing Conditions
Fixture Time
25 to 30 minutes

Additional Information

Technical properties

As-supplied properties

Part A, Part B and mixed-system values before cure.

Property Value Unit Method / condition
Part A appearanceYellowResin component
Part B appearanceBlueHardener component
Mixed appearanceGreenAfter 10:1 volume mixing
Mix ratio by volume10:1Part A to Part B
Part A viscosity6,700mPa sCone CP50-1, shear rate 50 s^-1, 25 deg C
Part B viscosity6,530mPa sCone CP50-1, shear rate 50 s^-1, 25 deg C
Mixed viscosity8,850mPa sCone CP50-1, shear rate 50 s^-1, 25 deg C
Working time30minutesAt 25 deg C on steel, aluminum and polyethylene
Technical properties

Final-state properties

Physical properties and cured adhesive performance; cure conditions are listed per row where stated.

Property Value Unit Method / condition
Glass transition temperature71deg CISO 11359-2
Shore hardness70Shore DISO 868
Elongation at break13%ISO 527-2
Tensile strength at break15N/mm^2ISO 527-2
Tensile modulus1,080N/mm^2ISO 527-2
Impact strength23JISO 9653, grit-blasted mild steel, cured 72 hours at 22 deg C
T-peel strength8N/mmISO 11339, steel, cured 72 hours at 22 deg C
Lap shear strength24N/mm^2Grit-blasted mild steel, cured 72 hours at 22 deg C

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