Adhesive The pressure sensitive adhesive layer applied to a tape which will hold two surfaces together
Centigrade Metric scale of temperature where 0° is the freezing point of water and 100° is the boiling point. To convert centigrade to Fahrenheit, multiply by 1.9 and add 32°.
Closed Cell A cell totally enclosed by its walls which does not connect with any other cells.
Creep A transient stress-strain condition in which the strain increases as the stress remains constant
Creep relaxation A transient stress-strain condition in which the strain increases concurrently with the decay of stress. (This is the most common condition existing in flat-face gasketing assemblies in which the bolt exhibits a relatively large amount of elongation.)
Elongation The distance a sample will stretch from its original length before breaking. Expressed as a percentage of the original length
EPDM Ethylene Propylene Diene Methlene Foam
Extrude To force through a measured orifice
Flange The rigid members of a gasketed joint that contact the edges of the gasket
Foam A lightweight cellular material resulting from the introduction of gas bubbles into a reacting polymer
Kiss Cut Refers to a die cutting method where the die stops before rupturing the liner.
Polyester A polymeric polyol containing ester groups in the main molecular chain or in side chains.
Polyether A polymeric polyol containing ether linkages (carbon-oxygen-carbon links) in the main molecular chain or in side chains.
Polymer An organic substance composed of repeating chemical units built up into large molecules
Polyethylene An extruded, tough and stretch film having limited temperature resistance but good moisture barrier properties
Polypropylene A polyolefin plastic similar in its properties to polyethylene but with higher temperature capability and greater strength
Rubber Based Adhesive An adhesive made from one or more elastomers. These adhesives are characterized by a higher quick stick and adhesion than acrylic based adhesives. They also lack aging and weather resistance
Strain The deformation of a gasket specimen under the action of applied force or stress
Stress relaxation A transient stress-strain condition in which the stress decays as the strain remains constant. (This condition is encountered in grooved-face gasketing joints in which metal-to-metal contact occurs. This condition is also approached in flat-face gasketing joints when the bolt is practically infinitely rigid.)
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last updated April, 2011