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ASTM C 419 Document Information:
Title
Standard Practice for Making and Curing Test Specimens of Mastic Thermal Insulation Coatings
ASTM International
Publication Date:
May 1, 2008
Scope:
This practice covers the preparation of specimens of mastics and
coatings in the form of cured sheets or films that may be used in
other procedures for evaluation of physical properties.
Three procedures are described for casting and curing (Note 1)
mastics and coatings of all types for thermal insulation.
NOTE 1—The term "cure" is used primarily to denote the condition
that develops as the result of loss of volatile matter but also to
denote possible subsequent changes in chemical or physical
properties due to crosslinking.
Procedure A is intended to provide a specimen of
controlled thickness applied to insulation, and equivalent in other
respects to that obtainable under field application conditions. The
thermal insulation intended for field use may be specified as the
backing.
Procedure B is intended to provide a free-film specimen
of controlled thickness having smooth surfaces on both sides. This
type is required for some types of physical testing.
Procedure C is intended to provide a free-film specimen
of controlled thickness having one smooth surface (as field
applied).
The procedures of this practice are not intended for the
evaluation of application properties. These are covered in Test
Methods C 461 and Guide C 647.
The values stated in inch-pound units are to be regarded as
standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and
are not considered standard.
This standard does not purport to address all of the safety
concerns, if any, associated with its use. It is the responsibility
of the user of this standard to establish appropriate safety and
health practices and determine the applicability of regulatory
limitations prior to use.
Keywords:
- mastic
- thermal insulation
- thermal insulation coating
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