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This round CR o-ring cord exhibits excellent resistance to weathering, ozone, aging, water and mild oil, ensuring long-term stable performance in indoor and outdoor working conditions.

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CR o-ring cord

CR o-ring cord

Item No. SR-012

CR O-ring cord is made of premium neoprene rubber material, featuring outstanding elasticity, superior sealing performance and great environmental adaptability. This round CR o-ring cord exhibits excellent resistance to weathering, ozone, aging, water and mild oil, ensuring long-term stable performance in indoor and outdoor working conditions.

The CR o-ring cord boasts good compression recovery and flexible toughness, which can be easily cut and spliced into custom-size O-rings to meet various non-standard sealing requirements. It provides reliable waterproof, dustproof, shockproof and airtight sealing effects for mechanical equipment, instruments, pipes, doors and windows and industrial machinery.

With fine workmanship, uniform diameter, smooth surface and no impurities, our CR o-ring cord ensures tight and consistent sealing without deformation after long-time compression. It works steadily in a wide temperature range and is widely applicable for automotive, mechanical, electronic, hydraulic and pneumatic system sealing solutions.


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  • OVERVIEW
  • SPECIFICATIONS
  • PACKAGE
  • FAQS

Key Features of CR o-ring cord :

1. Premium CR/Neoprene Material : Features great elasticity, compression resistance and durable service life.

2. Excellent Environmental Resistance : Resists ozone, weathering, aging, water and mild petroleum oil.

3. Customizable Application : Easy to cut and joint into custom O-rings for non-standard sealing needs.

4. Reliable Sealing Performance : Airtight, waterproof, dustproof and shock-absorbing.

5. Stable Physical Property : Uniform size, smooth surface, no crack, no deformation under compression.

6. Wide Application : Suitable for machinery, automobile, electronics, pipeline and general industrial sealing.


Applications of CR o-ring cord : 

1. Manufacture custom size bonded O-rings for non-standard sealing requirements.

2. Hydraulic, pneumatic valve and pipe-connection sealing.

3. Automotive lamp, door and machinery housing weather seals.

4. Marine hardware, hatch and pipeline waterproof gaskets.

5. Aluminium window and building door weather stripping.

6. Outdoor electrical cabinet dust-proof & moisture-resistant seals.

7. Equipment vibration damping, shock cushioning and anti-wear edging.







  • Materials

    CR, Neoprene

  • Hardness

    60-85 ShA

  • Color

    Black, Red, Green, Yellow, Blue, Brown, Gray, etc

  • Applications

    Automotive, Food and Medical Industry, Construction,Transportation.

Complete Pallet Preparation for rubber extrusions
Complete Pallet Preparation for rubber extrusions

Standardized Pallets: Goods are stacked on heat-treated (ISPM 15) or plastic pallets, optimized for forklift handling. Rigid Corner Protectors: High-impact cardboard corner guards are applied to the full height of the stack. This prevents the straps from cutting into the rubber and maintains the vertical integrity of the pallet.

Standard package for rubber extrusion
Standard package for rubber extrusion

Standard Rolls: Goods are typically supplied in 50m or 100m continuous rolls, precision-coiled to maintain the profile’s structural shape.

What does CR stand for in CR o‑ring cord?

CR means Chloroprene Rubber, also well‑known as Neoprene. It is a synthetic rubber famous for great ozone‑proof, weather‑proof, water‑resistant and moderate oil‑resistant capacity. Our CR o‑ring cord is extruded solid neoprene rubber rope for making custom‑sized O‑rings.

What hardness can you supply for the neoprene o‑ring cord?

Common Shore-A hardness ranges from 60 ShA ‑ 85 ShA. 70 ShA‑75 ShA is the most popular general‑purpose grade. Hardness can be customized upon your sealing, compression‑resistant or shock‑absorbing demands.

What working temperature range for CR o‑ring cord?

Standard neoprene/CR o‑ring cord works from ‑30 °C to +120 °C. It keeps stable performance under outdoor sunlight, humid and changing climate environments.

What diameter sizes are available?

We provide multiple standard CR O-Ring cord diameters from 2.0 mm up to 30 mm. Non‑standard custom diameters are supported. The surface is smooth with consistent roundness and uniform diameter.

Can I cut the O-Ring cord and make my own custom O‑rings?

Sure. The flexible CR o-ring cord can be cut to required length. Two cut ends can be glued or hot‑spliced into closed‑loop bespoke O‑rings for non‑standard sealing sizes which you cannot buy as finished moulded o‑rings.

Is CR o‑ring cord oil resistant?

It resists mild‑grade petroleum oil, lubricants and grease. It is not recommended for long‑time contact with strong solvent, fuel and concentrated mineral oil. For heavy‑oil environments we suggest NBR rubber cord.

Where may I apply the neoprene/CR O-Ring cord?

It is widely used for pipe joint seals, machinery housing gaskets, automobile accessory seals, boat hatch waterproof seals, aluminium door‑and‑window weather‑strip, electrical cabinet dust‑proof seals and vibration‑damping cushion work.

Does your CR o-ring cord contain harmful substances? Can it pass environmental tests?

Our raw‑material neoprene rubber is available with RoHS compliant formula. Please tell us if you need environmental‑friendly grade for electronic and exported goods.

Can I get samples before bulk‑order?

Free small‑length samples are available for your hardness, diameter and performance testing. You only need to afford the courier freight.

Will the CR o-ring cord turn brittle after long‑time outdoor exposure?

Our premium‑formula chloroprene rubber adds anti‑ozone and anti‑aging additives. It resists sunlight ageing far better than natural rubber, and serves for many years under outdoor conditions.

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