Blend-led resistance
NBR/PVC combines two polymer phases to tune oil exposure, mechanical performance and flame-related properties for the intended duty.
NBR/PVC blend
Industrial nitrile-rubber and PVC blend
A technical reference for Hamta Polymer NBR/PVC blend compounds from 40 to 90 Shore A. The blend is assessed where nitrile-family oil resistance and controlled flame behaviour are required in a compound designed for a specific cable, seal or industrial component duty.
-20 to +100 C
Typical service temperature
6
Standard hardness grades
ASTM / ISO
Test references
Application-specific
Oil / flame profile
Controlled flame requirements
Limiting oxygen index is a recorded compound property, not a complete system-level fire certification.
Design confirmation
Fluid, temperature, flexibility, electrical, fire and regulatory requirements must be reviewed for the final application.
Hamta Polymer NBR/PVC general specifications
Chemical nameNitrile-rubber / polyvinyl chloride blend
Technical designationNBR/PVC blend
Available hardness range40 to 90 Shore A
Typical blend ratioApplication-specific NBR/PVC ratio
Typical service range-20 to +100 C, depending on compound and application
Specific gravityApprox. 1.28 to 1.38 g/cm3, depending on formulation
Technical datasheet
NBR/PVC datasheet by hardness
Choose a hardness grade to view the recorded mechanical properties, units and test references.
| Property | Symbol | Unit | Value | Standard |
|---|---|---|---|---|
| Hardness | H | Shore A | 70 +/- 5 | ASTM D2240 / ISO 7619 |
| Tensile strength | TS | MPa | ≥ 13.0 | ASTM D412 / ISO 37 |
| Elongation at break | EB | % | ≥ 300 | ASTM D412 / ISO 37 |
| 100% modulus | M100 | MPa | 2.5 – 4.5 | ASTM D412 / ISO 37 |
| Tear resistance | TR | kN/m | ≥ 40 | ASTM D624 / ISO 34 |
| Compression set | CS | % | 30 – 40 | ASTM D395-B / ISO 815 |
| Resilience | R | % | 40 – 50 | ISO 4662 |
| Recorded technical property | ρ | g/cm³ | 1.34 +/- 0.03 | ASTM D792 / ISO 2781 |
| Abrasion resistance | Abr | mm³ | ≤ 120 | ISO 4649 |
| Volume change | AV | % | +9.0 to 3+/- | IRM 903 (V-60/70°C) / ISO 1817 |
| Limiting oxygen index | LOI | % | ≥ 29 | ASTM D2863 / ISO 4589 |
| Typical service temperature | T | °C | -20 ~ +100 | - |
NBR/PVC chemical-resistance guidance
This is an orientation aid, not a final compatibility approval. Confirm the specific medium, concentration, temperature and exposure cycle with the technical team.
Oil and industrial fluids
Mineral oils under reviewed service conditionsGood
Petroleum-based fluids subject to compound reviewGood
General industrial service
General mechanical component dutiesGood
Weather exposure with suitable designFair
Flame-related requirements
Compound-level limiting-oxygen-index requirementGood
Finished-system fire performanceFair
Unsuitable media without specialist review
Aggressive solvents and ketonesPoor
High-temperature steamPoor
Excellent
Good
Fair
Poor
Technical notes and limitations
1
Values are typical laboratory guidance for the stated test methods. Finished-part results can vary with formulation, cure, geometry and production conditions.
2
A recorded limiting oxygen index does not certify a cable, seal or assembly. Confirm the relevant finished-product standard and compound evidence before approval.
3
Material selection must be confirmed against the actual medium, temperature cycle, load, motion and relevant product requirements before final approval.
4
Material codes, numerical values, units and standards are shared technical identifiers; the explanatory English copy is authored for this page.
Where is NBR/PVC considered in our product range?
These product families can be explored from the English product hub. Suitability is determined by the final application, not by the material code alone.
Need help selecting an NBR/PVC grade?
Share the fluid, temperature, flexibility, flame-related requirements and target quantity with Hamta Polymer for an application-specific discussion.