summary
Standard Guide for Clear and Pigmented Lacquers
description
Significance and Use
3.1 These test methods are intended to compile as well as provide screening tests in evaluating clear and pigmented lacquers as used in different coating operations.
3.2 Each coating system may contain from a simple one coat operation to a multicoat finishing system.
3.3 The substrates may be varied, ferrous and non ferrous, plastic or wood which can affect the performance of a given coating system.
Scope
1.1 These test methods cover procedures for testing lacquers and lacquer coatings. The test methods included are listed in Table 1.
Note 1—In accordance with Terminology D16, a lacquer is defined as a coating composition that is based on synthetic thermoplastic filmforming material dissolved in organic solvent(s) and that dries primarily by solvent evaporation. Typical lacquers include those based on nitrocellulose, other cellulose derivatives, vinyl resins, acrylic resins, etc.
Note 2—Lacquers may be applied under such diverse conditions, to so many different surfaces, and their dried films may be subjected to so many kinds of wear and exposure that it is not possible to assure desired performance from a single selection of test methods and numerical results therefrom. Those skilled in lacquer technology may find partial assurance of obtaining desired qualities in various types of lacquers through careful selection of the methods covered herein and intelligent interpretation of results therefrom.
Note 3—It is intended ultimately to remove all experimental procedures from Test Methods D333 and to establish them as a guide to the selection of test methods for lacquer and perhaps to interpretation of results therefrom. Temporarily there remain in Test Methods D333 a few tests that are too short or otherwise presently unsuitable for establishment under separate ASTM designations.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
Details
Publisher
ASTM
File size
69.4 KB
Pages
6
Format
PDF
Publication date
2021-06-16
