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DESIGNING FOR LONG LIFE WITH ELASTOMERS

1976-11-01
HISTORICAL
AIR1412
This document lists those guidelines recognized as being essential for consideration by the designer who is preparing to select an elastomer as part of an aerospace design.
Standard

DESIGNING FOR LONG LIFE WITH ELASTOMERS

1991-04-01
HISTORICAL
AIR1412A
This document lists those guidelines recognized as being essential for consideration by the designer who is preparing to select an elastomer as part of an aerospace design.
Standard

Designing with Elastomers for Use at Low Temperatures, Near or Below Glass Transition

2003-12-30
HISTORICAL
AIR1387C
To ensure success in design of elastomeric parts for use at low temperature, the design engineer must understand the peculiar properties of rubber materials at these temperatures. There are no static applications of rubber. The Gaussian theory of rubber elasticity demonstrates that the elastic characteristic of rubber is due to approximately 15% internal energy and the balance, 85%, is entropy change. In other words, when an elastomer is deformed, the elastomer chain network is forced to rearrange its configuration thereby storing energy through entropy change. Thermodynamically, this means that rubber elasticity is time and temperature dependent (Reference 25). The purpose of this report is to provide guidance on low temperature properties of rubber with the terminology, test methods, and mathematical models applicable to rubber, and to present some practical experience.
Standard

Chloroprene (CR) Rubber, Weather Resistant, 35-45

1944-11-01
HISTORICAL
AMS3240
This specification covers a chloroprene (CR) rubber in the form of sheet, strip, tubing, extrusions, and molded shapes. These products have been used typically for parts, such as window channels, bumper pads, chafing strips, and seals, requiring resistance to weather and for use from -40 to +100 degrees C (-40 to +212 degrees F), but usage is not limited to such applications.
Standard

Chloroprene (Cr) Rubber, Weather Resistant, 35-45

1951-03-01
HISTORICAL
AMS3240A
This specification covers a chloroprene (CR) rubber in the form of sheet, strip, tubing, extrusions, and molded shapes. These products have been used typically for parts, such as window channels, bumper pads, chafing strips, and seals, requiring resistance to weather and for use from -40 to +100 °C (-40 to +212 °F), but usage is not limited to such applications.
Standard

Chloroprene (Cr) Rubber, Weather Resistant, 35-45

1965-02-01
HISTORICAL
AMS3240E
This specification covers a chloroprene (CR) rubber in the form of sheet, strip, tubing, extrusions, and molded shapes. These products have been used typically for parts, such as window channels, bumper pads, chafing strips, and seals, requiring resistance to weather and for use from -40 to +100 °C (-40 to +212 °F), but usage is not limited to such applications.
Standard

Chloroprene (Cr) Rubber, Weather Resistant, 35-45

1954-11-01
HISTORICAL
AMS3240B
This specification covers a chloroprene (CR) rubber in the form of sheet, strip, tubing, extrusions, and molded shapes. These products have been used typically for parts, such as window channels, bumper pads, chafing strips, and seals, requiring resistance to weather and for use from -40 to +100 °C (-40 to +212 °F), but usage is not limited to such applications.
Standard

Chloroprene (Cr) Rubber, Weather Resistant, 35-45

1959-01-01
HISTORICAL
AMS3240C
This specification covers a chloroprene (CR) rubber in the form of sheet, strip, tubing, extrusions, and molded shapes. These products have been used typically for parts, such as window channels, bumper pads, chafing strips, and seals, requiring resistance to weather and for use from -40 to +100 °C (-40 to +212 °F), but usage is not limited to such applications.
Standard

Chloroprene (Cr) Rubber, Weather Resistant, 35-45

1961-01-01
HISTORICAL
AMS3240D
This specification covers a chloroprene (CR) rubber in the form of sheet, strip, tubing, extrusions, and molded shapes. These products have been used typically for parts, such as window channels, bumper pads, chafing strips, and seals, requiring resistance to weather and for use from -40 to +100 °C (-40 to +212 °F), but usage is not limited to such applications.
Standard

Chloroprene (Cr) Rubber, Weather Resistant, 35-45

1975-06-01
HISTORICAL
AMS3240F
This specification covers a chloroprene (CR) rubber in the form of sheet, strip, tubing, extrusions, and molded shapes. These products have been used typically for parts, such as window channels, bumper pads, chafing strips, and seals, requiring resistance to weather and for use from -40 to +100 °C (-40 to +212 °F), but usage is not limited to such applications.
Standard

Chloroprene (Cr) Rubber, Weather Resistant, 35-45

1981-10-01
HISTORICAL
AMS3240G
This specification covers a chloroprene (CR) rubber in the form of sheet, strip, tubing, extrusions, and molded shapes. These products have been used typically for parts, such as window channels, bumper pads, chafing strips, and seals, requiring resistance to weather and for use from -40 to +100 °C (-40 to +212 °F), but usage is not limited to such applications.
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