Natural Rubber Sheet
Model:KXT B400
Kaxite offers complete range of Natural Rubber Sheet, according to different requirement offers a variety of material rubber sheets, we produce all kinds of rubber products according to customer's demands. Manufacturer gaskets, etc. Rubber sheets reinforced with cloth or wire.
Direct answer: what is KXT B400 and where is it best used?
Natural rubber sheet is an extensive line of gum rubber material with excellent physical properties, ideal for the marine industry, conveyor belt operations, and gasket applications. It displays outstanding tensile strength, elongation and abrasion resistance, performs well in low temperatures, and shows excellent adhesion to fabric and metals.
It is widely used in the automotive and military industries and for general industrial sealing, skirt board sheets, bearing pads, gaskets, and rubber seal strips.
Available in widths of 1 m, 1.2 m or 1.5 m and standard thicknesses as required. Custom sizes on request.
Eco-Friendly Elastomer
Sourced from rubber tree sap — a renewable natural material.
Excellent Abrasion Resistance
Long service life under repeated mechanical wear.
Low-Temperature Flexibility
Retains flexibility and compression set at -40°C.
Excellent Adhesion
Bonds well to fabric and metals in composite builds.
High Elongation
Minimum 500% elongation at break — extremely stretchable.
Direct answer: KXT B400 Natural Rubber Sheet has a specific gravity of 1.4 g/cm³, hardness of 40°–80° Shore A, minimum 18 MPa tensile strength, minimum 500% elongation at break, 15 N/mm tear strength, and a service temperature range of -40°C to +70°C. Standard widths are 1 m, 1.2 m or 1.5 m.
| Property | Value | Test Method |
|---|---|---|
| Model | KXT B400 | — |
| Material | Natural rubber (gum rubber, from rubber tree sap) | — |
| Color | Black | — |
| Specific Gravity | 1.4 g/cm³ | ASTM D297 |
| Hardness | 40° – 80° Shore A | ASTM D2240 |
| Tensile Strength | 18 MPa (min) | ASTM D412 |
| Elongation at Break | 500% (min) | ASTM D412 |
| Tear Strength | 15 N/mm | ASTM D624 |
| Low Temperature Resistance | -40°C | ASTM D1329 |
| Temperature Range | -40°C to +70°C | ASTM D2000 |
| Width | 1 m, 1.2 m, 1.5 m | — |
| Reinforcement Options | Cloth or wire reinforced on request | — |
| Certification | ISO 9001 factory management · RoHS / REACH on request | — |
Direct answer: Natural rubber offers excellent physical properties, abrasion resistance, elongation, tear resistance, tensile strength, eco-friendliness, low-temperature performance, compression set, and long service life. However, it is not recommended for oil, solvent, ozone, strong acids, animal fats, grease, or most hydrocarbons.
Advantages
- Excellent adhesion to fabric and metals
- Good performance at low temperature
- Excellent physical properties
- Excellent abrasion resistance
- Good elongation at break
- Excellent tear resistance
- Excellent tensile strength
- Very eco-friendly rubber
- Good compression set
- Longer service life
Limitations
- Not suited for environments involving ozone
- Not suited for strong acids, animal fats, or oil
- Not suited for grease or most hydrocarbons
- Poor ozone resistance
- Not recommended for oil and solvent service
Direct answer: KXT B400 is used in the marine industry, conveyor belt operations, and gasket applications, as well as in the automotive and military industries. It is also a good material for gaskets, skirt board sheets, bearing pads, and rubber seal strips.
Marine Industry Used for decking, fendering and general marine sealing where non-marking gum rubber is preferred.
Conveyor Belt Operations High abrasion resistance and elongation suit conveyor belt and material handling applications.
Gasket Material Good material for cut gaskets sealing water, most salts and mild acids.
Water, Salt & Mild Acid Service Used across water treatment, salt handling, and mild acid industries.
Automotive & Military In high demand in the automotive and military industries for anti-vibration and sealing.
Skirt Board, Bearing Pad & Seal Strip Used for skirt board sheets, bearing pads and rubber seal strips.
Not Recommended For Ozone environments, strong acids, animal fats, oil, grease and most hydrocarbons.
Direct answer: Kaxite supports custom widths, thicknesses, reinforcement (cloth or wire), and private-label branding. Standard MOQ is typically 500 kg per thickness for standard grades, with sample lead times of 5–7 days and production lead times of 15–25 days after order confirmation.
Q1What is Natural Rubber Sheet made from?
It is manufactured from the sap of rubber trees — natural rubber is a soft, supple, flexible non-marking gum rubber. Because it comes from a renewable tree source, it is considered an eco-friendly elastomer.
Q2What are the key mechanical properties?
Specific gravity 1.4 g/cm³ (ASTM D297), hardness 40°–80° Shore A (ASTM D2240), tensile strength 18 MPa minimum (ASTM D412), elongation at break 500% minimum (ASTM D412), tear strength 15 N/mm (ASTM D624).
Q3What is the temperature range of KXT B400?
The service temperature range is -40°C to +70°C (ASTM D2000), with low-temperature resistance down to -40°C (ASTM D1329).
Q4What sizes are available?
Standard widths are 1 m, 1.2 m or 1.5 m. Thicknesses are produced to order. Custom widths and lengths can be arranged for OEM orders.
Q5What media is natural rubber NOT suitable for?
Natural rubber is not recommended for oil, solvent, ozone environments, strong acids, animal fats, grease, or most hydrocarbons. For those media, nitrile rubber or Viton fluoroelastomer sheets are better choices.
Q6Can Kaxite supply cloth-reinforced natural rubber sheet?
Yes. Kaxite offers a complete range of rubber sheets, including reinforced sheets with cloth or wire. See the Rubber Sheet Reinforced with Cloth page for details.
Q7What is the MOQ and lead time?
MOQ is typically 500 kg per thickness for standard grades; smaller quantities can be negotiated for stock sizes. Sample lead time is 5–7 days. Production lead time is 15–25 days after order confirmation.
Q8How is the sheet packed and shipped?
Standard export packing is rolls or flat sheets in cartons or pallets. Typical shipment is via Ningbo or Shanghai Port under FOB, CIF or EXW terms. Air freight and courier are available for samples.
Q9Does natural rubber bond well to metals and fabric?
Yes. Natural rubber displays excellent adhesion to fabric and metals, making it suitable for composite builds such as cloth-reinforced sheet, metal-bonded pads, and laminated seals.
Q10What alternatives exist if natural rubber is not suitable?
Depending on the media and temperature, consider Nitrile Rubber Sheet for oil resistance, Neoprene Rubber Sheet for ozone and weather resistance, Silicone Rubber Sheet for high temperature, or Viton Fluoroelastomer Rubber Sheet for chemical resistance.
Request a quote for Natural Rubber Sheet KXT B400
Send us your required width, thickness, length, quantity, and application details — including media and operating temperature — and Kaxite's technical sales team will respond within 2 business hours with pricing and lead time.
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Address
No. 432 Zhenhai Middle Road, Luotuo Street, Zhenhai District, Ningbo City, Zhejiang China
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