Typical Properties of

NATURAL RUBBER OPEN CELL SPONGE STYLE RO15

RO15B (BLACK) AND RO15T (TAN)

Description: Natural Rubber Open Cell Sponge, or isoprene, has properties that make it useful in many applications. Natural Rubber RO15’s open cell structure gives it excellent recovery properties, or compression set resistance, making it a great choice for die ejection applications, cushioning, and vibration absorption. Natural Rubber RO15 is also used as an expansion joint material and has very good non-skid properties making it a common choice for mousepads, office supplies, and marketing displays.

Natural Rubber Open Cell Sponge RO15 is rated as 1A5 in ASTM D1056’s system and has a compression rating of 17-22 psi at 25% compression, giving it an “Extra Firm” rating. Natural Rubber Open Cell Sponge is available in 4 other densities: RO11 (Soft), RO12 (Medium), RO13 (Medium Firm), and RO14 (Firm). All five grades of Natural Rubber Open Cell Sponge products can be supplied with or without adhesive backing in full rolls up to 36” wide, or slit rolls as narrow as ¼”. Atlantic Gasket can die cut or waterjet cut parts to your exact specifications.

Polymer natural rubber (isoprene)

Specifications

ASTM D 1056-85 RO15

ASTM D 1056-98 1A5

Physical Property / Unit of Measure / Result
Compression Deflection @25% / psi
kPa / 19.5 +/- 2.5
134.4 +/- 17.2
DENSITY / pcf
g/cm3 / 25
.400
ELONGATION
(MINIMUM) / % / 250
TENSILE STRENGTH / psi
kPa / 40
276

STANDARD COLORS: BLACK (RO15B) AND TAN (RO15T)

This information is furnished as a guide for selecting materials. Atlantic Gasket Corp. disclaims liability for results or use of this information. It is the customer’s responsibility to obtain and test samples when determining suitability of material for a particular application.

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