Updated : Oct 15, 2019 in Business

ASTM D4145 PDF

ASTM D(). Standard Test Method for Coating Flexibility of Prepainted Sheet. standard by ASTM International, 09/01/ View all product details. Standard Test Method for Coating Flexibility of Prepainted Sheet – ASTM D . Hide. Search. Start. Standard ASTM standard · ASTM D This professional T-Bend Tester is designed and engineered in accordance with international test standard, e.g. ASTM D (Standard Test Method for.

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In the case of a coated steel specimen aastm example, galvanized steelexamine the tape to FIG. The results of this test indicates the degree of curing of the paint film. The paint film should not crack while bending the metal. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.

The stability of the coating is measured by applying tape on the reverse direction of the impact area.

ASTM D – 83()e1 Standard Test Method for Coating Flexibility of Prepainted Sheet

This is a paint property that can be varied by the addition of matting agents or dulling agents during paint manufacture. Salt Spray Test Standard: ASTM D Elasticity refers to the flexibility of the paint film when the metal sheet is subjected to radius bending.

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The gloss levels include low gloss, medium gloss, and high gloss. This test is performed using the organic solvent methyl ethyl ketone. These stresses can exceed the flexibility or adhesive strength of the coating, resulting in fracture of the coating which exposes the substrate, or in the loss of adhesion of the coating to the substrate.

Some of the colors are metameric, and are considered suitable only after being analyzed using this machine. Reverse Impact Test Standard: The reverse impact test is a destructive test.

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.

Organic coatings on precoated sheet are subjected to stresses when fabricated into products by roll forming, brake bending, or other deformation processes. This asstm has either been superseded and replaced by a new version or discontinued.

Your comments will receive careful consideration at a meeting of the responsible technical committee, which you may attend. This is a very important color assessment test. A number in parentheses ast, the year of last reapproval. NOTE 1—The above bends are expanded for clarity.

Prepainted Steel Test

Elasticity refers to the flexibility of the paint film when the metal sheet is subjected to radius bending. The values given in parentheses are for information only.

Your comments are invited either for revision of this standard or for additional f4145 and should be addressed to ASTM Headquarters. This test is a means of 3. A superscript epsilon indicates an editorial change since the last revision or reapproval. Surface Gloss Test Standard: Visual Color Test Standard: These stresses can damage to the coating, has been found to be satisfactory. Both salt performed in a salt axtm cabinet. A “0” T bend is the most critical and 5 T is less critical.

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Standard Test Method for Coating Flexibility of Prepainted Sheet

A greater solvent resistance indicates that the paint film is more stable and durable for outdoor exposure. Paul, MN or equivalent, Current edition approved March 25, The elasticity is measured with the aid of an eye piece after magnifying an image of the paint surface.

Summary of Test Method evaluating the ability of a coating system sstm withstand the stresses of fabrication. It is the responsibility of the user of this standard to establish appro- priate safety and health practices and determine the applica- bility wstm regulatory limitations prior to use. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

This is an accelerated corrosion test for organic coatings.

This makes a 1T bend Fig. Pencil Hardness Test Standard: The pencil hardness test is used to measure the hardness of the paint film.