Natural Rubber

Seals in food and beverage applications. Most popular material for non-hydraulic sealing applications. Mainly used for dampeners due to its ability to absorb vibration.


ASTM D1418 Designation

NR

Standard Colour

Black

Description

This material is the vulcanized product of the juice of the Hevea tree (latex).

Key Uses(S):

Seals in food and beverage applications. Most popular material for non-hydraulic sealing applications. Mainly used for dampeners due to its ability to absorb vibration.

Temperature Range:

Standard Compound: -50°C (-58°F) to 70°C (158°F) – Dry Heat Only

Hardness (Shore A):

40 TO 90

Features

High tensile strength, high resilience, high abrasion and high tear resistance properties, with a good friction surface and excellent adhesion to metals. Until the invention of synthetic elastomers in the 1930’s, this material was the only polymer available for O-ring manufacture. Natural Rubber features good resistance to organic acids and alcohols, with moderate resistance to aldehydes.

Limitations

Not widely used in sealing industry due to poor compression set performance and lack of resistance to many fluids.

Please note: This Material Data Sheet section is to be used as a professional guide only. Eastern Seals (UK) Ltd may source their products from a variety of Quality Approved Suppliers and the data shown should not be relied upon by any purchaser without verification of material source.

 

Key Information
ES REF
Colour
Temp Range
Shore
Notes
Data Sheet
NR90 BLACK -50°C to +70°C 90 High tensile strength, high resilience, high abrasion and high tear resistance properties, with a good friction surface and excellent adhesion to metals

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