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ASTM D6386 PDF

ASTM D Pracfice for Preparafion of Zinc. (Hot-Dip Galvanized) Coated Iron and Steel. Product and Hardware Surfaces for Painfing. The Thurston Avenue. This standard is issued under the fixed designation D ; the number 1 This practice is under the jurisdiction of ASTM Committee D01 on Paint and. Related. Jan 1, Buy ASTM D PRACTICE FOR PREPARATION OF ZINC (HOT-DIP GALVANIZED) COATED IRON AND STEEL PRODUCT AND.

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Thermal pretreatment of galvanized steel is necessary prior to powder coating to prevent outgassing of the galvanized coating during the baking step in the powder coating curing process. It is the responsibility of the user of this standard to establish appropriate safety and health practices and to determine the application of regulatory limitations prior to use.

Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.

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Anyone making use of this information assumes all liability arising from such use. The values given in parentheses are for information only. D gives guidance for oven temperatures for preheating. Outgassing occurs when moisture trapped in the outer layer of d6368 coating evaporates as the galvanized steel is heated when the powder coating is baked on.

The material provided herein has been developed to provide accurate and authoritative information about after-fabrication hot-dip galvanized steel.

Difference Between ASTM D and… | American Galvanizer’s Association

Galvanized surfaces may have been treated with protective coatings to prevent the occurrence of wet storage stain. The second notable difference between the two specifications is D gives guidance for thermal v6386 or baking of the galvanized steel prior to powder coating, whereas D does not. Preparing surfaces of new and partially weathered galvanized steel for powder coating is addressed in Practice D Sheet and coil surface preparation can be done in accordance with Practice D Historical C6386 s – view previous versions of standard.

The result of outgassing is pinholing or blistering in the powder coating.

Link to Active This link will always route to the current Active version of the standard. A similar DVD and guidebook for preparing galvanized coatings ast, to paint application is also available.

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Difference Between ASTM D6386 and ASTM D7803

This material provides general information only and is not intended as a substitute for competent professional examination and verification as to suitability and applicability. This practice covers surface preparation on iron and steel products and hardware that have not been painted previously.

July 21, Authored by Bernardo A. This practice does not apply to sheet galvanized steel products nor to the coil coating or continuous roller coating processes. The information provided herein is not intended as a representation or warranty on the part of the AGA. D does not allow for these types of preparation of the galvanized coating prior to application of powder coating.

The first notable difference is D allows for the application of wash primers i.