Description: Style AG40BTL is a 40 durometer butyl gasketing material that is impermeable to air and is used in many applications that require a solid mechanical airtight rubber. Also known as Isobutylene-isoprene, Style AG40BTL is formulated to meet the ASTM D2000 M1AA 407 specification. 40 durometer butyl presents users with a service temperature of -40°F to +180°F.
Atlantic Gasket’s solid rubber butyl material is available in a wide range of durometers, ranging from as soft as 40 Durometer (AG40BTL) to as hard as 70 Durometer (AG70BTL) with standard durometers in between. Style AG40BTL is available in the color black and can be manufactured in a wide range of standard thicknesses, ranging from as thin a 1/32" to as thick as 1/4", with custom thicknesses available upon request. 40 durometer butyl has a smooth finish and can be converted into rolls ranging from as narrow as 1/4 wide up to 48" in width. Additional widths are available upon request. Atlantic Gasket has the ability to fabricate 40 durometer butyl by die-cutting or waterjet cutting to meet your design and production requirements.
ASTM D2000 M1AA 407
|Physical Property||Unit of Measure||Typical Values|
|DUROMETER||SHORE A||40 +/- 5|
|TENSILE STRENGTH||psi||1000 (min)|
|General Characteristics of Nitrile Rubber:|
|Dilute Acid Resistance||Excellent|
|Resistance to Oil and Gasoline||Poor|
|Resistance to Water Absorption||Very Good|
|Resistance to Oxidation||Excellent|
|Resistance to Ozone||Excellent|
|Resistance to Sunlight Aging||Very Good|
|Solvent Resistance – Oxygenated (Ketones, etc.)||Poor|
|Resistance to Heat Aging||Very Good|
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.
Click here to download a specification Word document.