butyl custom gaskets
Butyl rubber is an extremely versatile material. Butyl Rubber is a copolymer of isobutylene, and a very small amount of isoprene, both polymers are distributed throughout the polymer chain randomly. It was first synthesized in 1937 at Standard Oil, now formally ExxonMobil Chemical. Shortly after, in 1943 Butyl Rubber was commercialized. Butyl Rubber Gaskets are one of the main types of gaskets NEDC manufactures.
Properties of Butyl Rubber
There are many favorable properties that Butyl Rubber has to offer, one of the most discussed properties of Butyl Rubber is the low permeability to air/gases and vapors. This makes it good for applications requiring an airtight seal, such as tires, vibration dampening, and construction sealants. The temperature range with Butyl is very wide; it typically ranges from -40°F to 250°F. Butyl rubber is also good for resistance to oxygen, sunlight, ozone and heat. For that reason, its used outdoors for numerous gasketing applications. In addition, it is a great option for shock absorption applications.
Butyl Solid Rubber Availability
Typically these materials are sold in calendered goods. Standard thicknesses range from .020’’ to .500’’ in thickness. Standard durometer for these materials is 40-80 Shore A.
Designations for Butyl Solid Rubber
ASTM D2000 AA, or BA
ASTM D1418 IIR
MIL-R-3065/SAE J-14/MIL-STD-417 RS
Butyl Rubber
Isobutylene-Isoprene Rubber
More Information/Cutting
NEDC is a leading supplier, and distributor of butyl rubber waterjet, and die cut parts. The standard color for Butyl is black. For more information on butyl rubber gaskets or you believe you have an application that could utilize a butyl rubber gasket, please contact sales@nedc.com.