Apple Rubber's Seal Design Guide

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NATURAL RUBBER

ASTM D1418 Designation: NR

ASTM D2000/SAE J200 Type, Class: AA

Apple Compound Designation: NA

Standard Color: Black

Description: Natural Rubber is the vulcanized product of the juice of the Hevea tree (latex).

Key Use(s): Seals in brake systems. Seals in food & 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: -60° to +220°F. (Dry Heat Only)

Hardness (Shore A): 40 to 90.

Apple Rubber Products, Inc. • 310 Erie Street • Lancaster, NY 14086 • 1.800.828.7745

1. Introduction

2. Products & Services

3. O-Ring Basics

4. Seal Types & Gland Design

5. Critical Operating Environmental Factors

6. Material Selection Guide

7. Special Elastomer Applications

8. Troubleshooting

9. Sizes & How to Order

10. Glossary of Terms

11. Rules of Thumb

12. Formulas

13. Seal Glossary

14. Bibliography / Trademarks