HARDENER HY 8683
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
- Fast-Setting Polyurea for Filter Bonding
- 15-Minute Working Window
- 475% Elongation with 100 Pli Peel
Product Description
ARALDITE® AY 8683 Resin / Hardener HY 8683 is a two-component polyurea elastomeric adhesive formulated for filter-bonding applications. The fast-setting system cures at room temperature and can be mixed by hand or processed through meter-mix equipment. A 100:60 resin-to-hardener ratio by weight or volume, 15-minute pot life at 77°F (25°C) for a 90 g mass, and typical mixed viscosity of 2,500–3,000 cP support dispensing and assembly. After a seven-day room-temperature cure, typical properties include Shore A 95 ± 5 hardness, 475% ultimate elongation, and 100 pli floating roller peel. The cured adhesive is tough and resilient.
Key features
- Filter-bonding formulation: Two-component polyurea elastomeric adhesive developed for filter assembly applications.
- Controlled two-component processing: Uses a 100:60 resin-to-hardener ratio by weight or volume with a typical 15-minute pot life at 77°F (25°C).
- Resilient cured performance: Typical cured properties include 475% elongation and 100 pli floating roller peel under the stated test conditions.
Applications / Suitable for
- Filter bonding
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Additional Information
As-supplied / before-processing properties
Typical values tested at 77°F (25°C) unless otherwise stated. Resin, hardener, and mixed-material properties are identified separately.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Color / appearance | Milky white / blue liquid | — | AY 8683 Resin / HY 8683 Hardener; visual |
| Specific gravity | 1.03 / 1.03 | — | AY 8683 Resin / HY 8683 Hardener; ASTM D-792 |
| Resin viscosity | 8,000–12,000 | cP | AY 8683 Resin at 77°F (25°C); ASTM D-2393 |
| Hardener viscosity | 60–90 | cP | HY 8683 Hardener at 77°F (25°C); ASTM D-2393 |
| Resin-to-hardener mix ratio | 100:60 | Parts | By weight and by volume |
| Pot life | 15 | min | Mixed 90 g mass at 77°F (25°C); ASTM D-2471 |
| Mixed viscosity | 2,500–3,000 | cP | At 77°F (25°C); ASTM D-2393 |
| Minimum cure time | 24 | h | Recommended cure at 77°F (25°C) |
After-processing / final-state properties
Typical values are not for specification purposes. Specimens were cured for seven days at 77°F (25°C) and tested at 77°F (25°C) unless otherwise stated.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Hardness | 95 ± 5 | Shore A | ASTM D-2240 |
| Tensile strength | 3,500 (24.1) | psi (MPa) | ASTM D-638; test rate 20 in./min (50 cm/min) |
| Ultimate elongation | 475 | % | ASTM D-638; test rate 20 in./min (50 cm/min) |
| Tear strength | 375 (65.6) | ppi (N/mm) | ASTM D-624; test rate 20 in./min (50 cm/min) |
| Floating roller peel | 100 (17.5) | pli (N/mm) | ASTM D3167-03a |





















