LOCTITE H4500
Harmonization Code : 3403.19 | Lubricating Preparations (With 70% or More Petroleum Oils) For Automotive and Other Uses
Main features
- 15-Minute Working Time
- High Impact and Peel Strength
- Primerless Structural Bonding
Product Description
LOCTITE® AA H4500™ is a two-component methacrylate structural adhesive designed to provide resilient, high-strength bonds across a wide variety of substrates including metals, plastics, composites, and coated surfaces. The adhesive cures at room temperature, offers excellent environmental durability, superior impact and peel strength, and tolerates off-ratio mixing. Its thixotropic, non-sag formulation can fill gaps up to 12.7 mm and does not require a primer for most applications.
Key Features & Benefits
- Two-component methacrylate structural adhesive.
- Excellent environmental resistance.
- Superior impact and peel strength.
- Excellent tolerance to off-ratio mixing.
- Primerless bonding on many substrates.
- Non-sag formulation fills gaps up to 12.7 mm.
- Non-corrosive cured adhesive system.
Recommended Applications
- Steel and stainless steel bonding.
- Aluminum assembly applications.
- Epoxy-coated metal structures.
- Sheet molding compound (SMC) assemblies.
- Engineering plastic and composite bonding.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
AppearanceAppearance
GraySpecific GravitySpecific Gravity
0.99/0.96Physical Properties
ViscosityViscosity
14,900/9,200 mPa.sAdditional Information
Technical Properties
As-Supplied / Before-Processing Properties
| Property | Value | Unit | Condition |
|---|---|---|---|
| Technology | Methacrylate Adhesive | — | Two-component acrylic system |
| Appearance (Part A) | White | — | Resin |
| Appearance (Part B) | Black Viscous Liquid | — | Hardener |
| Appearance (Mixed) | Gray | — | Mixed adhesive |
| Mix Ratio | 10 : 1 | Part A : Part B | By volume |
| Specific Gravity (Part A) | 0.99 | — | 25°C |
| Specific Gravity (Part B) | 0.96 | — | 25°C |
| Viscosity (Part A) | 14,900 | mPa·s (cP) | 25°C |
| Viscosity (Part B) | 9,200 | mPa·s (cP) | 25°C |
| Working Time | 15 | minutes | 25°C |
| Fixture Time | 10 - 15 | minutes | ISO 4587, steel |
Technical Properties
After-Processing / Final-State Properties
| Property | Value | Unit | Condition / Method |
|---|---|---|---|
| Glass Transition Temperature (Tg) | 107 | °C | ISO 11359-2 |
| Shore Hardness | 73 | Shore D | ISO 868 |
| Elongation at Break | 11 | % | ISO 527-2 |
| Tensile Strength at Break | 19.5 | N/mm² | ISO 527-2 |
| Tensile Strength at Yield | 32 | N/mm² | ISO 527-2 |
| Tensile Modulus | 1,370 | N/mm² | ISO 527-2 |
| Lap Shear Strength (Stainless Steel) | ≥20.7 | N/mm² | 24 h @ 22°C |
| Lap Shear Strength (Aluminum) | 21 | N/mm² | 72 h @ 22°C |
| Impact Strength (Steel) | 12 | J | ISO 9653 |
| T-Peel Strength (Steel) | 10 | N/mm | ISO 11339 |
