ASTM B905-00(2021) PDF
Standard Test Methods for Assessing the Adhesion of Metallic and Inorganic Coatings by the Mechanized Tape Test
Standard Test Methods for Assessing the Adhesion of Metallic and Inorganic Coatings by the Mechanized Tape Test
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Количество страниц:
- 6
- Дата публикации:
- 1 октября 2021 г.
- Издание:
- B905
- ICS:
- 25.220.40
SIGNIFICANCE AND USE 4.1 If a coating is to fulfill its function of protecting or imparting unique properties to the surface of a substrate, it must adhere to the substrate for the expected service life. Because surface preparation (or lack of it) has a drastic effect on adhesion of coatings, a test method for evaluating adhesion to different surface treatments or of different coatings to the same treatment is of considerable use to the industry. 4.2 The limitations of all adhesion methods, and the specific limitation of this test method to lower levels of adhesion (see 1.3) should be recognized before using it. These test methods are mechanized adaptations of Test Methods D3359; therefore, the intra- and interlaboratory precision of these test methods are similar to Test Methods D3359 and to other widely-accepted tests for coated substrates, for example, Test Method D2370, but this is partly the result of it being insensitive to all but large differences in adhesion. The pass-fail scale of 0 to 5 for Method B1 and B2 was selected deliberately to avoid a false impression of being sensitive. SCOPE 1.1 These test methods describe procedures for assessing the adhesion of metallic and inorganic coatings and other thin films to metallic and nonmetallic substrates. Assessment is made by applying pressure-sensitive tape to a coated surface and then utilizing a mechanical device to remove the tape at a regulated, uniform rate and constant angle while simultaneously recording the removal force. 1.2 Four methods are described. Methods A1 and A2 are intended primarily for use on parts. Methods B1 and B2 are intended primarily for use in laboratory evaluations. Methods B1 and B2 are not recommended for testing coatings and films on polymer substrates. 1.3 These test methods may be used to establish whether the adhesion of a coating to a substrate is within a required range (between a quantified low and a quantified high level). Determination of actual adhesive forces requires more sophisticated methods of measurement. In multilayer systems adhesion failure may occur between intermediate coating layers so that the adhesion of the total coating system to the substrate may not necessarily be determined. 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Abstract
Overview
ASTM B905-00(2021): Standard Test Methods for Assessing the Adhesion of Metallic and Inorganic Coatings by the Mechanized Tape Test specifies reliable, repeatable procedures to evaluate how well metallic and inorganic coatings, as well as other thin films, adhere to both metallic and nonmetallic substrates. This standard uses a mechanized tape test, ensuring uniform application and removal of tape to objectively assess adhesion performance. Developed under the internationally recognized principles of standardization, ASTM B905 is crucial for industries requiring coatings to maintain protective functions or impart special surface properties throughout their service life.
Key Topics
- Purpose: Ensure coatings reliably adhere to substrates for durability and performance.
- Applicability: Evaluates adhesion on both metallic and nonmetallic materials; not recommended for coatings on polymer substrates using some methods.
- Test Methods:
- Methods A1 and A2: Nondestructive, primarily for parts. Involves peeling tape at set angles (90° and 180°) without damaging the part.
- Methods B1 and B2: Destructive, primarily for laboratory panels. Feature a scored grid pattern followed by tape removal at defined angles.
- Assessment: Results indicate “pass” or “fail” or are classified on a 0–5 scale (for methods B1 and B2) based on the degree of coating detachment.
- Precision: Emphasizes consistent, controlled conditions-such as peel rate, angle, and pressure-to ensure interlaboratory comparability.
- Limitations: Test is designed for lower adhesion levels and can differentiate only significant differences; not suitable for measuring precise adhesive forces or for multilayer system interface failures.
Applications
ASTM B905-00(2021) is widely used across multiple industries to:
- Quality Assurance: Verify coating adhesion during production and final inspection of plated, painted, or treated surface parts.
- Surface Preparation Evaluation: Compare effectiveness of surface treatments or substrate conditions before coating application.
- Research & Development: Support formulation and process improvement by team’s investigating new coating systems or pre-treatment processes.
- Failure Analysis: Identify adhesion failures or weaknesses in metallic and inorganic coating systems before products are released or during field service evaluation.
- Compliance and Specification: Used to confirm that coatings meet minimum adhesion strength requirements as specified by manufacturers, customers, or regulatory bodies.
Industries benefiting from this standard include:
- Automotive and aerospace manufacturing
- Electronics and semiconductor fabrication
- Construction and architectural finishing
- Appliance and consumer goods production
Related Standards
To ensure comprehensive process control and compatibility, ASTM B905 references and aligns with the following standards:
- ASTM D3359: Test Methods for Rating Adhesion by Tape Test
- ASTM D3330/D3330M: Peel Adhesion of Pressure-Sensitive Tape
- ASTM D2370: Test Method for Tensile Properties of Organic Coatings
- ASTM B183/B242/B254/B281/B320/B343/B481/B482/B537/B629/B630/B727: Various preparation practices and guides for substrate materials prior to electroplating or coating
- ASTM D1730/D1731/D1732: Preparation of metallic surfaces for painting or coating
These related standards support consistent sample preparation, test application, and reporting, while enhancing the reliability of adhesion assessments across various coating types and industries.
ASTM B905-00(2021) establishes a standardized, reproducible method for testing metallic and inorganic coating adhesion, enhancing both process quality and product reliability for industries reliant on robust coatings. Through its mechanized approach, it delivers actionable, comparable results that underpin quality assurance, specification compliance, and coating process optimization.
Технические детали
- Технический комитет
- B08 - Metallic and Inorganic Coatings
- SKU
- ASTM B905-00(2021)
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