NBR Rubber Seal Strip

Silicone rubber seal strip

Material:silicone rubber

Feature:high temperature,soft,flexible,high elasticity

Shape:custom any shape by drawing
Color:any color
Temperature:-40℃ to 230℃
Hardness:shore A 45-80

NBR rubber seal strip

Material:NBR

Feature:demonstrates excellent resistance to grease/oil, fuel, and solvents. However, it has poor resistance to chlorinated hydrocarbons and ketones.
Shape:round,square,special shape by drawing or samples
Color:black,red,white,ect...
Temperature:-20℃ to 120℃
Hardness:shore A 60-90

PVC seal strip

Material:pvc

Feature: Environmental protection, easy installation, silent noise reduction, buffer collision, high and low temperature resistance
Shape:Semicircular, roofed, shaped
Color:black,white,red,ect....
Hardness:shore A 60-90

EPDM rubber seal strip

Material:EPDM

Feature:exhibits excellent ozone and UV resistance in temperatures ranging from -60° F to 250° F, all of which makes it popular for use in the manufacture of outdoor equipment.
Color:black,white,red,ect....
Hardness:shore A 60-90

FAQs for NBR Rubber Seal Strip

1. Q: What is NBR Rubber and what are its key properties for sealing strips?

A: NBR (Nitrile Butadiene Rubber) is a synthetic elastomer renowned for its excellent resistance to oils, fuels, and solvents. Key properties that make it ideal for seal strips include:

Excellent Oil & Fuel Resistance: This is its primary advantage, making it perfect for applications involving petroleum-based fluids.

Good Abrasion Resistance: It withstands wear and tear in dynamic sealing applications.

Compression Set Resistance: It maintains its shape and sealing force over time.

Cost-Effectiveness: It offers a great balance of performance and price for industrial applications.

2. Q: Where are NBR rubber seal strips most commonly used?

A: NBR seal strips are the go-to choice in industries and applications where exposure to oils and hydrocarbons is frequent. Common uses include:

Automotive & Machinery: Gaskets and seals for engine bays, oil pans, fuel systems, and hydraulic equipment.

Industrial Equipment: Sealing strips for machinery doors, access panels, and fluid handling systems.

Appliance Manufacturing: Used in devices like washing machines and dishwashers where resistance to lubricants and additives is needed.

3. Q: How does NBR compare to EPDM and Silicone for a sealing strip?

A: The best material depends entirely on the operating environment:

vs. EPDM: NBR is far superior for oil and fuel resistance, but EPDM is much better for weather resistance (UV, ozone, water). Use NBR for engine oil; use EPDM for outdoor weatherproofing.

vs. Silicone: NBR is more oil-resistant and cost-effective, but Silicone has a much wider temperature range and is better for extreme heat or cold and food-grade applications.

4. Q: What are the temperature and environmental limitations of NBR seals?

A: NBR performs well in a standard industrial temperature range of approximately -30°C to +100°C (-22°F to +212°F), with some specialized grades extending this slightly. Its main limitations are:

Poor Weather Resistance: It is not recommended for prolonged outdoor use as it degrades when exposed to ozone, UV light, and weathering.

Not for Polar Solvents: Avoid using it with ketones, brake fluid, or strong polar solvents.

5. Q: Can NBR seal strips be customized with an adhesive backing?

A: Yes, absolutely. We can provide our NBR seal strips with a high-performance pressure-sensitive adhesive (PSA) backing. It is crucial to select an adhesive that is also resistant to oils and fuels to ensure the entire assembly performs reliably in the intended environment. We also offer customization in terms of durometer (hardness), color, and profile to meet your specific design requirements.

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