Nitrile Rubber Sheet
Product Description
Product Detail
Nitrile Rubber Sheet (NBR / Buna-N) — Oil-Resistant Sheet Stock for Gasket Cutting, Lining and Shock Absorption | Model KXT B400NBR
Kaxite's nitrile rubber sheet is a compression-molded NBR elastomer sheet supplied in 1.0–150 mm thickness, 1–2 m width and 10–30 m roll length. It is engineered for oil resistance, moderate chemical exposure and mechanical durability — which is why procurement teams use it for in-house gasket die-cutting, machine shop flooring, shock-absorbing pads and industrial sealing applications. This is a raw material sheet, not a finished gasket, so you can cut it to your own dimensions on site.
What Is a Nitrile Rubber Sheet?
A nitrile rubber sheet (also called an NBR sheet, Buna-N sheet or acrylonitrile butadiene rubber sheet) is a flat elastomer sheet produced from a copolymer of butadiene and acrylonitrile. Unlike a finished gasket, the sheet is supplied as raw stock that you can cut, punch or stamp into gaskets, washers, pads and liners on site — which reduces tooling cost and shortens lead time for maintenance and MRO teams.
Our NBR sheet combines excellent elastic properties with strong resistance to oil, caustics and aliphatic hydrocarbons, and can withstand continuous service temperatures up to 120°C. It is not recommended for contact with solvents or chlorinated hydrocarbons. Typical hardness is 50–60 Shore A, with 45–85 Shore A available on request.
Performance Characteristics
Technical Specifications — Model KXT B400NBR
| Parameter | Specification / Range |
|---|---|
| Material | Nitrile Butadiene Rubber (NBR / Buna-N) |
| Model | KXT B400NBR |
| Thickness | 1.0 mm – 150 mm |
| Regular Width | 1, 1.2, 1.4, 1.5, 1.8, 2 m (max. 4 m) |
| Length | 10–30 m in common, or any length customized |
| Color | Black, red, green, blue, grey, yellow, orange, etc. |
| Density / Specific Gravity | 1.05 – 1.6 g/cm³ |
| Tensile Strength | 2 – 15 MPa |
| Elongation at Break | 150 – 500% |
| Hardness | 45 – 85 Shore A (standard 50–60) |
| Temperature Range | -50°C to +120°C |
| Chemical Resistance | Oil, caustics, aliphatic hydrocarbons |
| Not Recommended For | Solvents, chlorinated hydrocarbons |
| Machining | Cut into strips or pieces, punched, stamped into gaskets |
| Minimum Order Quantity | 500 kg |
Where Nitrile Rubber Sheet Is Used
The combination of oil resistance, elasticity and mechanical toughness makes NBR sheet a practical material across a wide range of industrial and maintenance environments:
Reinforced and Custom Options
Beyond the standard NBR sheet, we supply reinforced nitrile rubber sheet with cloth or wire insert for higher tear strength, and we can produce white nitrile rubber sheet for applications where color or FDA-grade compounds are required. Sheet can be cut to width, die-cut to shape, laminated or backed with adhesive on request.
- Reinforced with cloth or wire insert for higher mechanical strength
- White FDA-grade NBR compound for food and pharmaceutical contact
- Adhesive backing, fabric backing or plain finish
- Slitting to custom widths and cutting to custom lengths
- Die-cut gaskets, washers and pads from the same material batch
Compare our related sheet materials: Natural Rubber Sheet, Neoprene Rubber Sheet, Silicone Rubber Sheet and Fluorine Rubber Sheet.
Quality, Documentation and Supply
As an ISO 9001:2015 certified nitrile rubber sheet manufacturer in Ningbo, China, we supply each order with batch-level traceability and inspection records. Every shipment can include:
- Batch-level Certificate of Analysis with hardness, tensile strength and elongation data
- Material traceability from compound batch to finished sheet
- Dimensional and visual inspection reports
- Company certification records — see our Our Certificate page
Learn more about our production capability on the About Us page and review packing details on Packaging & Shipping.
Need a sample before you commit to a full roll order?
We offer free samples of standard NBR sheet so you can verify hardness, oil resistance and cutting behavior in your own workshop. Call +86-574-87527771 or email kaxite@seal-china.com.
Ordering, Lead Time & Shipping
| Item | Details |
|---|---|
| Minimum order quantity | 500 kg per specification |
| Stock items | Standard thickness and width ship in 5–7 working days |
| Custom sizes | Custom thickness, width, length or color typically 10–15 working days |
| Sample policy | Free samples for qualified buyers to validate material and thickness |
| Packaging | Rolls wrapped in kraft paper or PE film; export cartons or pallets as required |
| Shipping | Express, air freight and sea freight with full export documentation |
| Pricing | Factory-direct wholesale pricing; volume discounts on request |
Frequently Asked Questions About Nitrile Rubber Sheet
Quick answers to the questions buyers ask most often about our NBR rubber sheet (Model KXT B400NBR).