Astm D 4393 – 02 pdf free download

Standard Test Method for
Strap Peel Adhesion of Reinforcing Cords or Fabrics to
Rubber Compounds1

This standard is issued under the fixed designation D 4393; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of the last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.

1. Scope

1.1 This test method covers the determination of peel
adhesion of reinforcing fabrics that are bonded to rubber
compounds. It is applicable to either woven or parallel cord
textile structures from both natural and manmade fibers and to
parallel steel cord structures.

1.2 This test method is primarily used to evaluate tire cords
and tire cord fabrics, including steel tire cords, using a suitable
tire cord adhesive and a suitable rubber compound. This test
the method may be used to evaluate tire cord adhesives (fabric
dip), metallic (usually brass) coatings on steel cord, and the
process of adhesive reaction on the cord using one consistent
form of tire cord or fabric and one consistent rubber compound. This test method may be used to evaluate cords and
fabrics in industrial hose and belting products and other cord or
fabric reinforced rubber products.

1.3 Variables that may contribute to differences in results of
this test method includes adhesive type, adhesive application
the procedure, adhesive cure, fiber type, construction of cords or
reinforcing fabrics, rubber type, rubber cure, rubber thickness,
and cord spacing.2

1.3.1 The deleterious effect of ozone in combination with
atmospheric moisture on the ability of adhesives to bond with
rubber requires assiduous protection of cords prior to rubber
embedment.3

1.4 This test method is written in SI units. The inch-pound
units in parentheses provided in this test method are not
necessarily exact equivalents of the SI units. Either system of
units may be used in this test method.

1.5 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