ARALDITE 2015-1
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

Main features
- 15 MPa Lap Shear
- 45 to 55-Minute Working Window
- Evaluation Across Metals
Product Description
ARALDITE® 2015-1 is a two-component, room-temperature-curing epoxy paste structural adhesive for GRP, SMC and dissimilar-substrate bonding. The toughened, resilient system mixes 1:1 by weight or volume and forms a beige, thixotropic adhesive that fills gaps without sagging up to 10 mm. A 100 g mix provides a 45–55 minute pot life at 25°C, while specified lap shear strength of the mixed adhesive is greater than 15 MPa at 25°C. The technical data also documents cure-rate behavior across 10–100°C and evaluates bonded-joint performance after tropical humidity exposure, fluid immersion, heat aging and thermal cycling. Proper surface degreasing and abrasion or chemical etching are recommended for the strongest and most durable joints.
Key features
- Composite and dissimilar-material bonding: Particularly suitable for SMC and GRP, with documented test data for CFRP, metals and engineering plastics.
- Non-sag gap filling: Thixotropic paste fills gaps up to 10 mm and supports manual or robotic application.
- Balanced working time and strength: A 45–55 minute pot life is paired with specified lap shear strength above 15 MPa at 25°C.
Applications / Suitable for
- SMC structural bonding
- GRP and composite panel bonding
- Dissimilar-substrate assemblies requiring a gap-filling paste adhesive
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Additional Information
As-supplied / before-processing properties
Product data for the resin, hardener and mixed adhesive. Typical values are technical information and are not guaranteed specifications unless explicitly identified as specified.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Product form | Two-component, toughened thixotropic epoxy paste | — | Room-temperature-curing structural adhesive |
| Colour | Resin: beige; hardener: beige; mixed adhesive: beige | — | Visual, A112 |
| Specific gravity | Resin: 1.4; hardener: 1.4; mixed adhesive: 1.4 | — | As supplied / mixed state |
| Viscosity | Thixotropic for resin, hardener and mixed adhesive | Pa·s | At 25°C; qualitative rheology description |
| Mix ratio by weight | 100:100 | parts | Resin:hardener |
| Mix ratio by volume | 100:100 | parts | Resin:hardener |
| Pot life | 45–55 | minutes | 100 g mixed mass at 25°C |
| Non-sag gap filling | Up to 10 | mm | Thixotropic mixed adhesive |
After-processing / final-state properties
Cured-adhesive and bonded-joint data under the stated cure and test conditions. Typical values are not universal design allowables.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Lap shear strength | >15 | MPa | Specified value at 25°C; A501; mixed adhesive |
| Tensile strength | 31 | MPa | Typical; ISO 527; cure 16 h at 40°C; tested at 23°C |
| Tensile modulus | 1600 | MPa | Typical; ISO 527; cure 16 h at 40°C; tested at 23°C |
| Elongation at break | 4.2 | % | Typical; ISO 527; cure 16 h at 40°C; tested at 23°C |
| Glass transition temperature | 78 | °C | Typical; DMA; cure 1 h at 80°C |
| Flexural strength | 43 | MPa | Typical; ISO 178; cure 16 h at 40°C; tested at 23°C |
| Flexural modulus | 1800 | MPa | Typical; ISO 178; cure 16 h at 40°C; tested at 23°C |
| DMA shear modulus G′ at 20°C | 900 | MPa | Typical; ISO 6721; cure 1 h at 80°C |





















