ABLESTIK 2135D
Harmonization Code : 5906100000 | Adhesive tape of a width not exceeding 20cm

Main features
- Tough, Durable Epoxy for Bonding, Laminating, Sealing
- 1,200 mPa s Mixed Viscosity
- 2.7 x 10^13 ohm-cm Volume Resistivity
Product Description
LOCTITE® ABLESTIK 2135D BIPAX is a two-component, medium-viscosity epoxy adhesive for bonding, laminating, sealing, and structural repair. The light-amber system mixes at 100:60 resin-to-hardener by weight and is documented for bonding metals, ceramics, wood, concrete, phenolics, polyester, epoxy, many urethanes, and other plastics. It provides good wetting, high impact strength, and strong mechanical, shock, and environmental resistance after cure. The mixed adhesive has a typical viscosity of 1,200 mPa·s at 25°C, a 60-minute pot life, and can cure for 24 hours at 25°C or 4 hours at 65°C.
Key features
- Tough, impact-resistant bonding: Designed to provide high impact strength with mechanical and shock resistance after full cure.
- Low mixed viscosity and good wetting: Typical mixed viscosity is 1,200 mPa·s at 25°C for application across a broad range of substrates.
- Room-temperature or heat cure: Guideline schedules include 24 hours at 25°C or 4 hours at 65°C.
Applications / Suitable for
- Bonding and laminating
- Sealing and structural repair
- Bonding metals, ceramics, wood, and concrete
- Bonding phenolics, polyester, epoxy, many urethanes, and other plastics
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Thermal Properties
Electrical Properties
Additional Information
As-supplied / before-processing properties
Typical component, mixed, storage, and guideline cure information before final processing.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Technology | Epoxy | — | Two-component adhesive system |
| Appearance — mixed | Light amber | — | Uniformly mixed BIPAX system |
| Appearance — resin | Yellow liquid | — | LOCTITE ABLESTIK 2135D-R SDS |
| Appearance — hardener | Tan liquid | — | LOCTITE ABLESTIK 2135D-H SDS |
| Mix ratio — resin:hardener | 100:60 | by weight | Documented BIPAX mix ratio |
| Mixed viscosity | 1,200 | mPa·s (cP) | At 25°C; test method not stated |
| Specific gravity — mixed | 1.11 | — | Typical TDS value |
| Specific gravity — resin | 1.13 | — | LOCTITE ABLESTIK 2135D-R SDS |
| Specific gravity — hardener | 0.95 | — | LOCTITE ABLESTIK 2135D-H SDS |
| Pot life | 60 | minutes | Temperature, test mass, and endpoint not stated |
| Recommended cure schedule | 24 | hours | At 25°C; guideline recommendation |
| Alternative cure schedule | 4 | hours | At 65°C; guideline recommendation |
| Storage | ≤27 | °C | Dry storage in original, sealed, unopened containers unless otherwise specified on packaging |
After-processing / final-state properties
Typical physical, electrical, and bonded-joint properties of the cured adhesive. Values are reference data and are not product specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Operating-temperature range | -60 to 100 | °C | Documented product range |
| Hardness | 70 | Shore D | Test method and cure condition not stated |
| Glass-transition temperature | 54 | °C | Ultimate Tg; test method and cure condition not stated |
| Coefficient of expansion | 5.5 × 10-5 | cm/cm/°C | Temperature range, method, and cure condition not stated |
| Reactive solids content | 100 | % | Typical TDS value |
| Volume resistivity | 2.7 × 1013 | ohm-cm | At 25°C; test method and cure condition not stated |
| Dielectric strength | 435 | V/mil | Test method, specimen thickness, conditioning, and cure condition not stated |
| Dielectric constant | 3.68 | — | At 1 kHz and 25°C |
| Dissipation factor | 0.02 | — | At 1 kHz and 25°C |
| Lap shear strength — aluminum to aluminum | 1.61 (234) | N/mm² (psi) | After curing for 24 hours at 25°C; test temperature, surface preparation, bondline, and method not stated |
| Lap shear strength — aluminum to aluminum | 20 (2,888) | N/mm² (psi) | After curing for 4 hours at 65°C; test temperature, surface preparation, bondline, and method not stated |





















