Standard Guide for
Preparation of Aluminum Surfaces for Structural Adhesives
Bonding (Phosphoric Acid Anodizing)1
This standard is issued under the fixed designation D 3933; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of 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 guide describes the requirements for phosphoric
acid anodizing of aluminum and its alloys for structural
adhesive bonding.
1.2 The procedure included herein is based on the commercial practice of numerous agencies and organizations. The
the method may be revised or supplemented, as necessary, to
include methods based on proven performance.
1.3 The surface preparation of metal systems used for
qualification and quality-control testing of the adhesive should
be agreed upon between the manufacturer and the user.
1.4 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information
only.
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. A specific precaution is given in 5.5.
2. Referenced Documents
2.1 ASTM Standards: 2
D 907 Terminology of Adhesives
D 2651 Guide for Preparation of Metal Surfaces for Adhesive Bonding
2.2 Federal Specifications:
0-0-670 Orthophosphoric Acid, Technical3
3. Terminology
3.1 Definitions—Many terms in this guide are defined in
Terminology D 907
Click below to download Astm D 3933 – 98 (Reapproved 2004) pdf free
