ARALDITE 2028-1
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
- Transparent UV-Stable Bonding
- 6 to 8-Minute Pot Life
- 60% Cured Elongation
Product Description
ARALDITE® 2028-1 is a two-component, cold-curing polyurethane structural adhesive that mixes 1:1 by weight or volume to form a transparent adhesive. It is UV stable and suitable for bonding a variety of metal and plastic substrates, with additional published test data for composites, glass and wood. The system provides a 6–8 minute pot life in a static mixer and about 6 minutes for a 100 g mix at 25°C, supporting fast assembly. A thin 0.05–0.10 mm adhesive layer is recommended for greatest lap shear under the stated test approach. The mixed adhesive has specified lap shear strength above 8 MPa at 23°C, while typical cured-property data include 6.6 N/mm roller peel, 60% elongation at break and environmental-aging evaluations.
Key features
- Transparent, UV-stable formulation: Forms a transparent mixed adhesive for assemblies where bondline appearance and light exposure are selection factors.
- Fast 1:1 processing: Mixes equally by weight or volume and provides a 6–8 minute pot life in a static mixer.
- Multi-substrate structural bonding: Suitable for selected metal and plastic substrates, with specified mixed-adhesive lap shear strength above 8 MPa at 23°C.
Applications / Suitable for
- Selected metal bonding, including aluminium, steels, copper and brass
- Selected plastics and composites, including GRP, CFRP, SMC, ABS, PVC, PMMA, polycarbonate and polyamides
- Glass and wood bonding evaluated under the stated cure conditions
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Additional Information
As-supplied / before-processing properties
Values distinguish Component A, Component B and the mixed adhesive where applicable. Specified and typical values retain their stated source status and conditions.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Colour | Transparent / translucent / transparent | — | Component A / Component B / mixed adhesive; visual method A112; specified |
| Specific gravity | 1.12 / 1.12 / 1.12 | — | Component A / Component B / mixed adhesive |
| Viscosity at 25°C | 3–4.5 / 7–11 | Pa·s | Component A / Component B; method A191; specified |
| Mix ratio by weight | 100:100 | parts | Component A : Component B |
| Mix ratio by volume | 100:100 | parts | Component A : Component B |
| Pot life in static mixer | 6–8 | min | Mixed adhesive |
| Pot life | About 6 | min | 100 g mixed mass at 25°C |
| Flashpoint | >100 | °C | Adhesive system |
After-processing / final-state properties
Except for the specified mixed-adhesive lap shear value, the values below are typical laboratory data and are not guaranteed design values.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Lap shear strength at 23°C | >8 | MPa | Mixed adhesive; method A501; specified |
| Roller peel | 6.6 | N/mm | Typical average; ISO 4578; cure 16 h at 40°C |
| Glass transition temperature | 13 | °C | Typical average; DMA; cure 16 h at 40°C |
| Tensile strength at 23°C | 11 | MPa | Typical average; ISO 527 |
| Tensile modulus | 16 | MPa | Typical average; ISO 527 |
| Elongation at break | 60 | % | Typical average; ISO 527 |
| Lap shear on wood / glass | 7 / 7 | MPa | Typical average; cure 16 h at 40°C |
| Lap shear after thermal cycling | 12.8 | MPa | Typical average; 100 cycles of 6 h from −30°C to 70°C |
