Rubber Bellow Materials » Bellow Material Selection Guide

The rubber material selection plays a crucial role in the performance of the rubber bellow in the actual application. Datwyler Sealing Solutions USA maintains an in house lab that can customize existing compounds to meet virtually any application demand. Below you'll find a selection of the common rubber bellow materials & compounds to assist you with your bellow application demands.

Custom Molded Bellows – offering full engineering & design support, material development, performance testing, rapid prototyping

and much more. Please follow the link to learn more about our Custom Molded Bellow capabilities.

PTFE (Polytetrafluroethylene)

Polyurethane (AU / EU)

Hydrogenated Nitrile (HNBR)

Fluorosilicone (FVMQ)

Custom Compounds

Speciality compounds developed from raw materials allows Datwyler to tailor bellows to the highest application demands.

Standard Bellow Materials

Speciality Bellow Materials

Rubber Bellows Materials » Standard & Speciality Compounds

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Rating Legend

	Standard Compounds					Speciality Compounds
ASTM D1418 Designations	EPDM	CR	NBR	VMQ	FKM	AU / EU	HNBR	FVMQ
Material Relative Cost	$$	$$	$	$$$	$$$	$$$	$$$$	$$$$
Compression Set Resistance
Resilience (Rebound)
Tear Strength
Heat Aging Resistance
Ozone Resistance
Resistance to Oil & Grease
Fuel Resistance
Water Swell Resistance
Gas Impermeability
Abrasion Resistance
High Temperature - Standard	300 °F	250 °F	212 °F	450 °F	390 °F	175 °F	300 °F	400 °F
High Temperature - Special	-	-	250 °F	480 °F	-	-	-	-
Low Temperature - Standard	-60 °F	-40 °F	-22 °F	-75 °F	5 °F	-60 °F	- 22 °F	-75 °F
Low Temperature - Special	-	-	-60 °F	-	-30 °F	-	-40 °F	-

Rubber Bellow Materials » Specialized Applications

NSF 61 Compliant

Rubber bellows can be made with NSF 61 complaint material, this material is approved for use with potable drinking water applications. NSF International is an independent non-profit organization designed for consumer protection world wide.

FDA Compliant

Rubber bellow materials can be made with FDA compliant materials. This material can carry approval for use with various Food, Beverage, Dairy or general industry use. FDA is the U.S. government Food and Drug Administration.

Mil Spec

Rubber bellow materials can be made from Mil-Spec compliant materials. The materials can carry specific certifications to meet standards set forth by the U.S. Department of Defense. These specifications can vary depending on actual bellow application.

USP Class VI

Rubber bellows can be made with USP Class VI compliant material. These materials are compliant with the U.S. Pharmacopeia. These materials maybe required for use in the medical industry or for hygienic equipment.

Rubber Bellow Materials » Custom Compounds

Our custom material compounds are individually engineered to your application requirements. Using polymers based on our own raw materials for your application allows us to design the highest performance materials to satisfy even the most rigid of functional demands. Using our in house rubber compound experts with a global materials database, and the latest in testing software gives us the edge in creating the perfect compound for your application. Finally our computer controlled procedures ensures the highest quality standards in the compounding and the manufacturing processes.

If you would like to speak with a member of our Engineering Team please call us at 1-800-227-2539 x119.

Submit RFQ for Custom Molded Bellows

Viton ® is a registered trademarks of E. I. du Pont de Nemours and Company or affiliates.

Due to the number of interacting forces, it is STRONGLY RECOMMENDED THAT YOUR ELASTOMER SELECTION BE RIGOROUSLY TESTED IN THE ACTUAL APPLICATION, performance assumptions must be checked so that you are certain that all variables have been carefully considered.