Engineered for extremes
NR Gate 65S
Read the code: NR, GATE duty (hydro gate seals), 65 Shore A, S for sulfur cure, recipe 01.
Development grade. The values below are design targets, not measured results. Each target becomes a typical value, with the number of lots and the test report behind it, as testing is completed.
A 65 Shore A natural-rubber compound for hydraulic gate seals (music-note, double-bulb, flat and moulded corner seals) made to IS 15466:2004, with optional PTFE or fluorocarbon cladding for low friction.
- Polymer class
- NR
- Duty
- GATE: hydro gate seals
- Hardness
- 65 Shore A
- Temperature range
- -40 to 70 °C
- Lead time
- Trial quantities on request
- Minimum order
- 25 kg
- Issued
- 2026-10-28
- Revision
- A
- Packing
- Per order
Design targets and release limits
| Property | Target | Limits | Unit | Method |
|---|---|---|---|---|
| Hardness | 65 | 60 to 70 | Shore A | IS 3400 (Part 23) / ISO 48-4 |
| Tensile strength | 18 | min 14.5 (IS 15466) | MPa | IS 3400 (Part 1) |
| Elongation at break | 550 | min 450 (IS 15466) | % | IS 3400 (Part 1) |
| Water absorption, 7 days | 3 | max 10 (IS 15466) | % | IS 3400 (Part 6) |
| Tensile retained after 48 h oxygen ageing at 70 °C, 2.1 MPa | 90 | min 80 (IS 15466) | % | IS 3400 (Part 4) |
| Low-temperature brittleness, 3 min at −40 °C | No cracks | no brittleness (IS 15466) | IS 15466 Annex A | |
| Compression set, 22 h at 70 °C (additional) | 20 | max 30 | % | ASTM D395 method B, button |
| Ozone, 50 pphm, 20 % strain, 72 h at 40 °C (additional) | No cracks | no cracks | ISO 1431-1 |
Qualification plan
The grade code says what this compound is designed for. This table says what it has passed: a duty is claimed only once its report is on file.
| Test | Standard or method | Conditions | Status |
|---|---|---|---|
| IS 15466 Table 1 test report | IS 15466:2004 (check the current BIS copy) | At an NABL-accredited laboratory | Planned |
| Cladding adhesion | IS 15466 | PTFE or fluorocarbon cladding, at least 1 mm | Planned |
Design targets are the values the compound is designed to reach. They are not measured results and they are not a warranty. Release limits apply to lots once the recipe is approved. The grade code says what the compound is designed for; the qualification plan says what it has passed. Confirm suitability in your own application and fluids.
Every lot is supplied with a certificate of analysis. Enter the lot ID under Track on the website to see the lot record. Pascalor is an independent brand and is not affiliated with any polymer manufacturer named elsewhere on this site.
Registered entity name to be added | quotes@pascalor.com