softening point

softening point

[′sȯf·ən·iŋ ‚pȯint]
(physics)
For a substance which does not have a definite melting point, the temperature at which viscous flow changes to plastic flow.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

softening point

An index of a bitumen’s fluidity; the temperature at which a bitumen (used in roofing or road construction) softens or melts.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.
References in periodicals archive ?
In many cases, the discharge end of the feed throat is near or even above the polymer's melting or softening point, even with water cooling.
SBS content in Polymer Modified Bitumen (PMB) asphalt is about 4.5% by mass (the dosage is chosen to reach a minimum softening point of 54 [degrees]C).
Federal claims the softening point of its Slipstream is 434 degrees, high enough to resist heat-instigated change and deliver consistent long-range flight.
The high-temperature performance and low-temperature performance of silica fume/SBS composite-modified asphalt mortar were evaluated by the cone penetration, softening point, viscosity, DSR, and BBR.
Ring and ball ([SP.sub.R&B]) softening point was determined according to EN 1427.
were the subscripts "ag" and "or" indicate aged and original, respectively, while P is a generic property, such as penetration, viscosity, softening point, ductility, and complex modulus.
In asphalt roofing, Ceranovus waxes can be used to stabilize or increase the softening point of commercial, residential or peel-and-stick roofing products while decreasing penetration in desired formulations.
Ceranovus waxes can be used to stabilize or increase the softening point of commercial, residential, or peel-and-stick roofing products while decreasing penetration in desired formulations.
The Vicat softening point of the billet sample was measured on a 3 mm disk sample cut from the billet.
However, West Yorkshire-based Dugdale says its newly developed formulations now also enable its manufacturing customers to fully comply with the BS 5255: 1989 specification for waste thermoplastic fitting of wall thickness less than 2.7 mm--wherein a Vicat Softening Point requirement of > 80 degrees Celsius is mandatory.
Most resin suppliers categorize products according to softening point from 100[degrees]C to 140[degrees]C.