Product
Black hardness 70 NBR nitrile rubber sheet
Premium Black Nitrile Rubber Sheet (NBR / Buna-N)
Our premium black nitrile rubber sheet (also widely known as Buna-N or NBR sheet) is engineered to deliver outstanding performance in demanding industrial environments. Specifically formulated to provide superior resistance to oils, fuels, lubricants, and petroleum-based solvents, this high-grade nitrile sheet represents the industry standard for seals, gaskets, and protective linings where fluid exposure is a constant factor.
Product Specifications
Polymer Base: NBR (Nitrile Butadiene Rubber)
Available Colors: Black, Red, Green (Custom colors on demand)
Thickness Range: 1mm to 100mm (Thicknesses above 15mm supplied in sheet/plate form)
Customizable Shapes: Rolls, Sheets, Strips, or custom pre-cut gaskets
Surface Finish: Smooth on both sides, fabric-impression/cloth finish (one or both sides), or one side with anti-slip textured pattern.
Standard Sizes:
• Widths: 1.0m / 1.2m / 1.4m / 1.5m / 1.6m / 1.8m / 2.0m
• Lengths: 5m / 10m / 15m / 20m (Custom dimensions available upon request)
Embedding Layers (Reinforcement): Nylon canvas, mesh fabric, nylon mesh fabric, or encrypted canvas for enhanced mechanical strength.
Logistics & Packaging
Our export-standard packaging includes protective plastic film wrapping, heavy-duty PP woven bags, and strong shipping pallets. Custom branding, corporate logos, custom colors, and special safety markings/labels can be tailored to meet your distribution or retail requirements.
NBR Rubber Sheet Performance Parameters & Specifications
| Code | Specific Gravity | Hardness | Tensile Strength | Elongation at Break |
|---|---|---|---|---|
| ZXZRS20001NI-70 | 1.6 g/cm³ | 75 +/- 5 Shore A | 2.5 - 3.0 MPa | 180% |
| Thickness (mm) | Width | Length | Insertion (Reinforcement) | Theoretical Weight |
|---|---|---|---|---|
| 1.0 mm | 1.5 m | 10 m | / | 19.2 kg/roll |
| 1.5 mm | 1.5 m | 10 m | / | 31.2 kg/roll |
| 2.0 mm | 1.5 m | 10 m | 1-PLY | 43.2 kg/roll |
| 3.0 mm | 1.5 m | 10 m | 1-PLY | 67.2 kg/roll |
| 4.0 mm | 1.5 m | 10 m | 1-PLY | 91.2 kg/roll |
| 5.0 mm | 1.5 m | 10 m | 2-PLY | 115.2 kg/roll |
| 6.0 mm | 1.5 m | 10 m | 3-PLY | 139.2 kg/roll |
| 8.0 mm | 1.5 m | 10 m | 4-PLY | 187.2 kg/roll |
| 10.0 mm | 1.5 m | 10 m | 5-PLY | 240.0 kg/roll |
| 12.0 mm | 1.0 m | 2.0 m | 8-PLY | 38.4 kg/pc |
| 15.0 mm | 1.0 m | 2.0 m | 10-PLY | 48.0 kg/pc |
| 20.0 mm | 1.0 m | 2.0 m | 10-PLY | 64.0 kg/pc |
| 25.0 mm | 1.0 m | 2.0 m | 10-PLY | 80.0 kg/pc |
1. All specifications, dimensions, and weights listed above are subject to standard factory manufacturing tolerances (±).
2. All physical data provided represent typical values compiled from standard laboratory tests and serve as guidance only.
3. This technical datasheet applies exclusively to the NBR rubber sheet products listed. Customized grades with modified tensile strength or hardness are available upon request.
4. Weights are calculated theoretical values. Customized factors (such as fabric insertion layers or custom thicknesses) will directly affect final shipping weights.
Chemical Resistance Properties (by Polymer Content)
| Chemical Agent / Medium | ZXZRS20001PC-20% | ZXZRS20001PC-30% | ZXZRS20001PC-50% | ZXZRS20001PC-70% | ZXZRS20001PC-100% |
|---|---|---|---|---|---|
| Aliphatic Hydrocarbons | Regular | Regular | Regular | Excellent | Excellent |
| Aromatic Hydrocarbons | Regular | Regular | Regular | Excellent | Excellent |
| Lubricating Oils | Regular | Regular | Regular | Excellent | Excellent |
| Outdoor Exposure | Regular | Regular | Regular | Excellent | Excellent |
| Ozone Exposure | Regular | Regular | Regular | Regular | Excellent |
| Diluted Acids | Regular | Regular | Regular | Regular | Regular |
| Diluted Alkali | Regular | Regular | Regular | Regular | Regular |
| Vegetable Oil | Regular | Regular | --- | Excellent | Excellent |
| Animal Oil | Regular | Regular | --- | Excellent | Excellent |
Chemical Support & Limitations Notice:
1. The chemical resistance values provided above serve as a general reference based on standard laboratory environments.
2. Real-world performance depends heavily on temperature, chemical concentrations, continuous vs. intermittent contact, and operating pressure.
3. We strongly recommend that buyers or end-users verify compatibility under specific physical conditions prior to high-volume commercial application.
4. The factory assumes no liability for premature degradation or mechanical failure resulting from incorrect grade selection or extreme environmental exposures.
5. In-depth technical consultation and customized compounds are available via our factory engineers.
Product Details & Surface Finishes
Outstanding Fuel Resistance & Mechanical Longevity
Formulated to meet demanding industrial sealing needs, our premium black nitrile rubber sheet provides highly reliable, persistent resistance to oils, automotive fuels, greases, and various petroleum-based substances. Known globally for its balanced combination of flexibility, hardness stability, and tensile strength, this nitrile sheet is frequently converted into specialized mechanical gaskets, oil-resistant seals, and fuel line protective lining.
The internal molecular structure of Buna-N rubber maintains high physical integrity even under constant mechanical stress and high-frequency friction, making it an excellent choice for both static seals and dynamic machinery applications. It actively resists swelling, chemical softening, and structural breakdown upon direct contact with aromatic compounds, automotive grease, and light industrial chemical solvents.
With fully customizable thicknesses, reinforcement insertion layers, and custom widths, this versatile black nitrile rubber sheet is ideal for use in automotive workshops, marine fuel systems, oil pipelines, petrochemical processing plants, and custom-cut heavy machinery seals. Manufactured under rigorous quality control guidelines at our dedicated rubber factory, every roll supports operational longevity without compromising safety.
Factory Direct Contact (FOB / CIF / CFR)
We are a professional, export-focused rubber manufacturing factory specializing in wholesale distribution of rubber sheet products. We supply bulk orders to distributors, wholesalers, and industrial contractors globally with direct sea port delivery.
Sales Director: Carrie Kang
Tel / WeChat: +86 13821173226
WhatsApp Support: +86 13821173226
Official Email: sales@chn-rubber.com
We respond to all technical inquiries within 24 hours.
