Rubber

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Rubber is an extremely versatile material with excellent sealing capabilities, however it is important to note that rubber can vary greatly in terms of performance and quality.

With this in mind PTM only supply rubber from reputable European suppliers thus ensuring that our qualities are of a high standard.

In addition to our commercial rubber range we carry a number of British Standard and other specification rubbers such as WRAS Approved, NCB158, ICI M228 etc.

The material is commonly used to produce one of our most popular products, rubber gaskets.

Specification Rubber is made to exacting standards as outlined in BS1154, BS2751, BS2752, BS476, BS5400 etc. For detailed information on specifications please phone us, or click here to see the British Standards web site.

It is important to ensure that the correct material is used for the application. i.e. Although Nitrile is a rubber with very good properties when used in an oil environment, commercial Nitrile would fail quickly when used with fuels, especially bio-fuels.

Having witnessed an increase in suppliers stocking an ever expanding range of “economy” grades of rubber over the last few years, it is reassuring to know that there is a company with over 45 years experience in the sealing sector who will advise you of the most suitable material for your application.

The table below can be used as a guide to identify the most suitable rubber for each application but please call us to ensure application specific criteria is met.

Chemical Resistance Guide

NitrilePolyurethaneSiliconeViton A®ButylEPDMCSMNaturalSBRNeoprene
Physical PropertiesResilienceGGPFFGGVGG
Compression SetGGGGFFFGG
Impermeability to GasesGGPVGVGGVGFG
Mechanical PropertiesImpact ResistanceFGFGGGGVGG
AbrasionGVGFGGGGVGG/VG
TearGVGPFGFFVGG
Chemical ResistanceWeatherFVGVGVGVGVGVGFG
OzonePVGVGVGGVGVGUG
Dilute AcidGPFGVGVGVGGF
Dilute AlkaliFPFGVGGVGFF
Lubricating OilsGVGGVGPPFUF
Petrol*PPPGPPPUP
Degreasing SolventsPFFGPPPUP
Polar Organic SolventsPFGGGGFFP
Hydraulic Oil (Silicone)GFFGFFGPG
Hydraulic Oil (Phosphate Esters)PFFPGGFUU
Working TemperatureMinimum °C-30-40-70-30-25-40-35-40-30
Maximum °C1159020025012014012570110

VG = Very Good: G = Good: F = Fair: P = Poor: U = Unsuitable: Petrol* Since refiners and blenders have been increasing the percentage of bio-fuel (Usually Ethanol) in petroleum and diesel it is recommended to always test the proposed rubber with the fuel first. These ratings are intended as a general guide to the suitability of the rubber. Individual compounds vary. For specific information or to match criteria simply call or e-mail us.

Types of Rubber

Click on the links below to download a data sheet on the different grades.

Butyl/EPDM and CSM

EPDM (Commercial)

EPDM (Commercial)

EPDM’s are resistant to many chemicals and solvents particularly water, phosphate ethers, ketones, alcohols together…
Data Sheet
Butyl

Butyl

Butyl Rubber is recommended for medium priced articles requiring good resistance to corrosive chemicals, heat…
Data Sheet

Natural Rubber

Chloroprene/Neoprene Rubber

Nitrile Rubber

Silicone

Viton™/FKM

Viton A™

Viton A™

This is a high priced speciality polymer. It is used almost exclusively where resistance to…
Data Sheet

As with all elastomers it is recommended that the type is tested for suitability as grades do vary.
We are happy to advise on any application, but final responsibility lies with the customer.
Viton is a trademark of The Chemours Company.

Choose PTM Ltd.
for all your rubber needs.

Simply give us a call or fill in the enquiry form and one of our experts will give you all the advice and guidance to meet your rubber requirements.

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