LOCTITE AA H3101

Harmonization Code : 3506.91.90.99 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg ; Adhesives based on polymers of headings 3901 to 3913 or on rubber; Other ; Other

LOCTITE AA H3101

Main features

  • 1:1 Controlled Mixing
  • 20 to 25-Minute Fixture Time
  • Up to 9.5 mm Gap Filling

Product Description

LOCTITE® AA H3101™ is a two-component, room-temperature curing methacrylate structural adhesive designed for high-strength bonding of metals, plastics, composites and other engineering substrates. Featuring a 1:1 mix ratio and highly thixotropic non-sag consistency, the adhesive develops handling strength within approximately 20 to 25 minutes and provides durable bonds with excellent environmental resistance, impact strength and peel performance. The product is capable of filling gaps up to 9.5 mm and maintains mechanical integrity across a broad temperature range, making it suitable for industrial assembly, fabrication and composite bonding applications.

Key Features & Benefits

  • Two-component methacrylate structural adhesive system.
  • Convenient 1:1 mix ratio for dispensing and processing.
  • Fast fixture time of approximately 20 to 25 minutes.
  • Excellent environmental resistance after cure.
  • Superior impact and peel strength performance.
  • Highly thixotropic, non-sag formulation.
  • Gap-filling capability up to 9.5 mm.
  • Suitable for bonding metals, composites and many plastics with minimal surface preparation.

Recommended Applications

  • Structural bonding of metals and composites.
  • Industrial equipment and fabricated assemblies.
  • Fiberglass reinforced plastic (FRP) bonding.
  • Plastic-to-metal and plastic-to-plastic assemblies.
  • Gap-filling structural joints requiring toughness and peel resistance.
Product Family

LOCTITE AA H3101

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
Appearance
Appearance at room temperature.
Pale milky white/Light tan
Mix Ratio
The amount of a constituent divided by the total amount of all other constituents in a mixture
1:1
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.
1.04/0.96
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
80,000-110,000/45,000-70,000 mPa.s

Additional Information

Technical Properties

As-Supplied / Before-Processing Properties

Property Value Unit Condition
Technology Methacrylate Adhesive — Two-Part Structural Adhesive
Appearance Part A Pale Milky White — Resin Component
Appearance Part B Light Tan — Hardener Component
Mix Ratio (A:B) 1 : 1 by Volume Recommended ratio
Specific Gravity Part A 1.04 — 25°C
Specific Gravity Part B 0.96 — 25°C
Viscosity Part A 80,000 - 110,000 mPa·s (cP) 25°C
Viscosity Part B 45,000 - 70,000 mPa·s (cP) 25°C
Open Time ≥20 minutes Room temperature
Technical Properties

After-Processing / Final-State Properties

Property Value Unit Condition / Method
Fixture Time 20 - 25 minutes Room temperature cure
Maximum Gap Fill 9.5 mm Non-sag structural adhesive
Lap Shear Strength (Etched Aluminum) ≥20.6 N/mm² ISO 4587
Lap Shear Strength (Anodized Aluminum) 18 N/mm² ISO 4587
Lap Shear Strength (Steel) 17 N/mm² ISO 4587
Lap Shear Strength (Stainless Steel) 20 N/mm² ISO 4587
Lap Shear Strength (Polycarbonate) 6 N/mm² ISO 4587
Block Shear Strength (ABS) 7.2 N/mm² ISO 13445
Block Shear Strength (PVC) 1.2 N/mm² ISO 13445
T-Peel Strength (Aluminum) 3.8 N/mm ISO 11339
VOC Content (Part A) 41.4 % 2010/75/EC
VOC Content (Part B) 62 % 2010/75/EC

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