Perfectly suitable in presence of temperature fluctuations, this rubber has a higher level of resistance to water and steam and remains very flexible at low temperatures.


The 3R830 is often used for boiler gasketing.


Technical Data

Polymer Type EPDM
Color Black
Hardness (Shore A) ± 5 60
Temperature -40°C to 120°C (-40°F to 250°F)
Tensile Strength, lbs/in² 800
Elongation minimum, % 300
Compression Set Good
Abrasion Resistance Good to Excellent
Tear Resistance Fair
Ozone Resistance Outstanding
Impermeability to Gases Good
Resistance to Dilute Acid Excellent
Resistance to aromatic hydro-carbons Poor
Heat Aging Excellent
N.B. The information, details and values indicated are to the best of our knowledge. We recommend to conduct tests according to local conditions. The data is subject to some variations without notice.