ASTM D6677-07(2012)
用刀评估粘结性的标准试验方法
Standard Test Method for Evaluating Adhesion by Knife
- 标准号
- ASTM D6677-07(2012)
- 发布
- 2007年
- 发布单位
- 美国材料与试验协会
- 替代标准
- ASTM D6677-18
- 当前最新
- ASTM D6677-18(2022)
- 引用标准
- ASTM D2197 ASTM D3359 ASTM D4541 ASTM D7234
- 适用范围
- 4. Significance and UseTop
Bottom 4.1 Coatings, to perform satisfactorily, must adhere to the substrates on which they are applied. This test method has been found useful as a simple means of assessing the adhesion of coatings. Although this method is a qualitative and a subjective test it has been used in industry for many years and can provide valuable information.
4.2 Other adhesion test methods may be useful in obtaining quantitative results. See D2197, D3359, D4541, and D7234.
4.3 The Performance Evaluation Scale (see 7.4, Table 1) is based on both the degree of difficulty to remove the coating from the substrate and the size of removed coating.
TABLE 1 Rating SystemRating
Description
10
Coating is extremely difficult to remove; fragments no larger than approximately 0.8 by 0.8 mm (1/32 in. by 1/32 in.) removed with great difficulty.
8
Coating is difficult to remove; chips ranging from approximately 1.6 by 1.6 mm (1/16 by 1/16 in.) to 3.2 by 3.2 mm (1/8 by 1/8 in.) can be removed with difficulty.
6
Coating is somewhat difficult to remove; chips ranging from approximately 3.2 by 3.2 mm (1/8 by 1/8 in.) to 6.3 by 6.3 mm (1/4 by 1/4 in.) can be removed with slight difficulty.
4
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