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More effective quality testing of the synthetic, hollow filaments that are often used in the manufacture of lower cost paintbrushes is the purpose of a new standard approved by ASTM International Committee D01 on Paint and Related Coatings, Materials and Applications. The new standard, ASTM D7233 , Test Method for Testing Fracture of Level Paintbrush Filaments, was developed by Subcommittee D01.…
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The wettability of a particular solid coating, substrate or pigment on a surface is a key to its effectiveness, as wetting is important to adhesion as well as to the prevention of surface defects such as craters, dewetting and crawling. A new ASTM International standard uses contact angle measurements to determine the wettability of coatings. The new standard, D7490 , Test Method for Measurement…
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A new ASTM International standard, ASTM D7447 , Practice for Symbolizing Adhesive Applications, provides a convenient way for engineers to represent adhesives on a computer-aided design drawing. The standard, a collaborative effort between ASTM and the Adhesive and Sealant Council, is under the jurisdiction of Subcommittee D14.60 on Adhesive Material Classification System, which is part of ASTM…
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By necessity, paint used for roadway applications needs to dry quickly. Some multi-component traffic paints cure in less than 10 minutes, some much faster. Because of this speed of curing, these traffic paints and other types of fast-cure (less than 10 minutes) multi-component paints cannot be tested for volatile content using procedures outlined in the ASTM International standard typically used…
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A request from the United States Navy was the impetus behind the development of a new ASTM International standard, E2630 , Test Method for Luminance Ratio of a Fluorescent Specimen Using a Narrow Band Source. The new standard was developed by Subcommittee E12.05 on Fluorescence, part of ASTM International Committee E12 on Color and Appearance. Richard Harold, consultant, Color and Appearance…
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Two new standards demonstrate the broad range of practices and test methods currently being developed by ASTM International Committee D01 on Paint and Related Coatings, Materials and Applications. The new ASTM standards will be used in the realms of color reproduction and contact angle measurement. Achieving Consistent Color Reproduction Developed by Subcommittee D01.56 on Printing Inks, ASTM…
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First generation gonioapparent colorants are materials pigmented with metal flakes that change lightness as illumination angles change. Used heavily in automotive coatings, the first generation of gonioapparent materials was covered by ASTM International standard E2194 , Practice for Multiangle Color Measurement of Metal Flake Pigmented Materials, first published in 2003. Now, a second generation…
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ASTM Committee D01 on Paint and Related Coatings, Materials and Applications will present a technical seminar, “New Solvents and Formulating Techniques for Low VOC and HAP Paints,” on Sunday, June 15, 2008, from 4 to 6 p.m., at the Hyatt Regency Hotel in Vancouver, British Columbia, Canada. The seminar will be held in conjunction with the D01 committee meeting to be held June 15-18 in Vancouver…
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Finding a way to accurately measure the water and volatile content of high baked phenolic coatings has led to the development of a new ASTM International standard, D 7245 , Test Method for Measuring Total Water and Volatiles in Liquid Coatings Which Produce Cure Water Upon Heating. The new standard was developed by Subcommittee D01.21 on Chemical Analysis of Paints and Paint Materials, part of…
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Subcommittee D01.37 on Ink Vehicles, part of ASTM International Committee D01 on Paint and Related Coatings, Materials and Applications, is seeking participation in the development of a proposed new standard that outlines procedures for preparing ink resin solutions in both vegetable oils and petroleum distillates. According to Richard Czarnecki, vice president, technology, Superior Printing Ink…