Rubber | CutWise

Neoprene (CR Rubber)

Rubber

Neoprene, also known as CR rubber (Chloroprene Rubber), is a versatile synthetic rubber known for its excellent balance of mechanical strength, chemical resistance, and weather resistance. Thanks to these properties, Neoprene is a popular choice for a variety of industrial applications, ranging from seals to vibration dampers.
Well-known trade names for Neoprene include Duprene®, Baypren®, and Skyprene®. These grades are used worldwide in applications where durability and reliability are essential.

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Properties of Neoprene

Good resistance to oils, greases, and fuels
Excellent resistance to ozone, UV radiation, and weather
Good mechanical properties such as tensile strength and wear resistance
Temperature resistant from -30 °C to +100 °C
Easy to process: simple to glue, weld, and shape
Low gas permeability, suitable for seals
Electrically insulating properties
Available in various hardnesses (Shore A 40–70) and colors
Economical alternative for oil exposure applications

Thanks to these properties, Neoprene is a reliable choice for applications where oil resistance, weather resistance, and mechanical performance are required.

Datasheet Title

Technical properties of Neoprene

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Product information and operations

Thickness	Dimensions	Color
1 mm	3000x1400 mm	Black 70 Shore
1.5 mm	3000x1400 mm	Black 70 Shore
2 mm	3000x1400 mm	Black 70 Shore
3 mm	3000x1400 mm	Black 70 Shore
4 mm	3000x1400 mm	Black 70 Shore
5 mm	3000x1400 mm	Black 70 Shore
6 mm	3000x1400 mm	Black 70 Shore
8 mm	3000x1400 mm	Black 70 Shore
10 mm	3000x1400 mm	Black 70 Shore
12 mm	3000x1400 mm	Black 70 Shore
15 mm	3000x1400 mm	Black 70 Shore
20 mm	3000x1400 mm	Black 70 Shore

* 1 side self-adhesive (bottom side)

Technical properties

General

Density 1,23 g/cm³

Color Black / on request

Water Absorption < 5 %

Specific Heat Capacity 1,3 kj/Kg°C

Temperature Range

Minimum Service Temperature -30 °C

Maximum Service Temperature +100 °C

Mechanical

Tensile Strength 7–17 MPa

Elongation at Break 200–600 %

Hardness (Shore A) 40–70

Compression Set (22h/70 °C) 20–35 %

Electrical Properties

Dielectric Strength 20–30 kV/mm

Volume Resistivity 10¹³–10¹⁵ Ω·cm

Dielectric Constant (1 MHz) 4–6

Thermal Properties

Glass Transition Temperature -43 °C

Maximum Service Temperature +100 °C

Coefficient of Linear Thermal Expansion 150·10⁻⁶/K

Thermal Conductivity 0,2–0,3 W/m·K

Applications of Neoprene

Seals and gaskets in the automotive industry

Hoses for water, air, and non-oil liquids

Vibration dampers and shock absorbers in machinery

Electrical insulators and cable jacketing

Flooring and mats in industrial and commercial settings

Protective apparel and accessories, such as wetsuits and gloves

Adhesives and sealants for various uses

Seals in HVAC systems and ventilation ductwork

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Frequently Asked Questions about Neoprene

What makes neoprene suitable for outdoor applications?

Neoprene resists ozone, UV, and weather extremely well, retaining its properties under prolonged outdoor exposure.

Is neoprene resistant to oils and greases?

Yes, neoprene has good resistance to many oils, greases, and fuels, making it ideal for oil-rich environments.

How does neoprene perform at low temperatures?

Neoprene remains flexible and elastic down to –30 °C, suitable for cold-environment applications.

Can neoprene be laser-cut or milled?

Yes, neoprene can be both laser-cut and CNC-milled, depending on the precision required.

Is neoprene electrically insulating?

Yes, neoprene offers excellent dielectric strength and is widely used in electronics.

How does neoprene compare to other rubbers like EPDM or NBR?

Neoprene balances oil resistance and weather resistance; EPDM is superior in ozone resistance and NBR in fuel resistance.

Is neoprene recyclable?

Technically yes, but recycling facilities are limited and vary by region.

Can neoprene be bonded?

Yes, neoprene bonds well with suitable adhesives, though mechanical fastening may be preferred in some cases.

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Silicone Rubber (VMQ)

Rubber

Silicone rubber, also known as VMQ (Vinyl-Methyl-Silicone), is a high-performance elastomer that excels in temperature resistance, flexibility, and chemical inertness. The material retains its elastic properties over a wide temperature range and is resistant to ozone, UV radiation, and aging. This makes silicone rubber ideal for applications in the medical sector, food industry, electronics, and aerospace.
Well-known trade names for silicone rubber include Silastic®, Elastosil®, Nusil®, and Silbione®. These grades are used worldwide in applications where high performance and reliability are essential.

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Properties of Silicone Rubber

Exceptional temperature resistance from -60 °C to +230 °C (short-term up to +250 °C)
Excellent flexibility and elasticity, even at low temperatures
High resistance to ozone, UV radiation, and weather
Chemically inert and biocompatible, suitable for medical and food applications
Low compression set, maintains shape under long-term load
Electrically insulating properties, suitable for electronic applications
Available in various colors with a hardness of 60 Shore A
Resistant to steam and hot water
Long lifespan with minimal maintenance

Thanks to these properties, silicone rubber is a reliable choice for applications where durability, flexibility, and resistance to extreme conditions are essential.