Tabla de elastomeros

SPECIFICATION TABLES
Select The Elastomer Best Suited For The Chemicals In your System

ELASTOMER

If It’s Rubber, We Can Make It.

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Engineered Elastomeric Solutions

800-285-1600
Copyright 2005 Holz Rubber Company. All Rights Reserved.

HOW TO SELECT THE ELASTOMER BEST SUITED FOR THE CHEMICALS IN YOUR SYSTEM:
1. LOCATE THE SPECIFIC CHEMICAL in your system inthe alphabetical chart of chemicals listed in Table 1. 2. SELECT THE BEST TUBE MATERIAL. Holz elastomer resistance ratings appear opposite each chemical. Refer to the "Key to Chemical Guide" on this page . Pick the elastomer or elastomers with the best rating(s). The elastomer name is listed at the head of each column. 3. REFER TO TABLE 2. "Material Code Selection Chart". SELECT THE SURROUNDINGATMOSPHERE AND DESIGN TEMPERATURE which most closely approximates your conditions. DETERMINE THE BEST MATERIAL CODE COMBINATION.

KEY TO CHEMICAL GUIDE: A -- EXCELLENT: Long service may be expected with little or no effect on elastomer-suitable for continuous service. B -- GOOD: Good service may be expected but elastomer will be affected by the exposure-usually suitable for continuous orintermittent service.

C -- CONDITIONAL:

Fair service may be expected if chemical exposure is limited or infrequent. Not recommended for

continuous use but may give some service if it is the only elastomer available.

X -- NOT RECOMMENDED. -- -- INSUFFICIENT INFORMATION: RATINGS AND CONDITIONS:

No data available at the time publication to determine an accurate rating, but not

expected toperform better than rated compounds. This "Chemical Recommendation Chart" is to be used only as a guide in selecting the most satisfactory combination of elastomers for resistance to various chem solution. The specific rating found in this chart are based upon past field experience, the advice of various polymer suppliers and specific laboratory experiments. It must be streesed, however, that thisinformation is offered only as a guide, and because of variables in actual service conditions, the accuracy of the ratings cannot be guaranteed. Actual service life can be determined only by the user evaluating the elastomer in actual service conditions.

CAUTION:
Ratings are based upon ambient temperature of 70F. unless stated otherwise. Higher temperatures increase the effect of all chemicalson elastomers. An elastomer that is suitable at room temperature might fail at elevated temperatures.

MEDIA PIPED/PUMPED

MEDIA

"TUBE" ELASTOMER
CHLOROBUTYL

PIPED/PUMPED

"TUBE" ELASTOMER
CHLOROBUTYL

HYPALON®

EPT/EPDM

EPT/EPDM

NATURAL

NATURAL

TEFLON®

TEFLON®
A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A

SILICONE

Absolute Alcohol AcetaldehydeAcetamide Acetate of Lime Acetate Solvents Acetic Acid-Common Acetic Acid-Dilute Acetic Acid-Glacial Acetic Acid-Common10%1.8 BE Acetic Acid-20% Acetic Acid-30%, 5.4 BE Acetic Acid-50%, 7.9 BE Acetic Acid-99.5% Glacial Acetic Aldehyde Acetic Anhydride Acetic Ester Acetic Ether Acetic Oxide Acetidin Acetoacetic Acid Acetoacetic Ester Acetone Acetone Cyanhydrin Acetonic Acetonitrile AcetophenoneAcetyl Acetic Acid Acetyl Acetone Acetyl Acetonic Acetyl Benzene

A C C B C B B C B B B C C C C X X C X B B B C B B C B C C C

X X X --C B C B B C C C C B X X B X -X X X -X -B B X

A C B B X B B C B B B C C C B X X B X X X B B B A X X X X X

A X B B X C C C C C C C C X B X X C X X X X X X C X X X X X

A A A A B A B A B B B B A B B B B B B B A A A A A B B B A

A C B A X B B C B B B B C C AX X A X -X B C B B X -X X X

A A A A C A A B A A A A B A B B B B B -B A X A A A -A A A

B X B X X C A C A C C C C X X X X X X -X X X X X -X X X

A A A A A A A A A A A A A A A A A A A A A A A A A A A A A A

A A B --A A B A A A B B A C B B C B --A A A -------

Acetyl Chloride Acetylene Acetylene Dichloride Acetylene Tetrabromide Acetylene Tetrachloride Acetyl Oxide Acetyl Propane...