ASTM B921 PDF

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Find the most up-to-date version of ASTM B at Engineering Standard Specification for Non-hexavalent Chromium Conversion Coatings on Aluminum and Aluminum Alloys. Active Standard ASTM B | Developed by. Start. Standard ASTM standard ยท ASTM B Subjects. Metallic and Inorganic Coatings; Metal Powders and Metal Powder Products (ASTM VOL ).

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ASTM B921 – 08(2018)

Enter your personal account email address to request a password reset: As your partner in the supply chain, our commitment to quality and professional service assures you that you have chosen the right supplier for your metal finishing needs. AnoChem TCP should be applied where conductivity, paintability or corrosion resistance are required on aluminum substrates.

Many plating shops want to switch to TCP, so I think it will be ever harder for you to continue to make your parts look like they are carcinogenic when they are not: It is a trivalent chromium conversion process.

Films are normally applied by dipping, but may also be applied by inundation, spraying, roller coating, or by wipe-on techniques. AnoChem TCP replaces hexavalent chromate conversion coatings used for aluminum alloys without sacrificing corrosion resistance, electrical contact resistance or organic topcoat adhesion properties while meeting regulatory requirements of ROHS, WEEE and ELV legislation. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory requirements prior to use.

Thanks for the response. The color produced is not homogenous as you would expect from a dye, but is useful for an inspection aid. Maybe somebody can add a UV trace to the coating similar to parylene conformal coating–there is a UV trace added. But the fact is that the traditional yellow color was never a dye; it was the inherent color of the hexavalent chromium toxin.

This process is almost colorless and cannot be dyed. AnoChem TCP left has a clear, bright finish with a blue iridescence and should not be mistaken that the part is untreated. They have notified us that due to environmental concerns that they will no longer use the gold tint.

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ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

ASTM-B, –

It’s not possible to diagnose a finishing problem or the hazards of an operation via these pages. There were no books found for the applied search filters. We have complaints from both the DoD and the FAA that their inspectors cannot tell if the Non-hex chromate clear conversion coating is on the metal or not.

It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. Regards, Ted Mooney, P.

This specification covers the requirements relating to rinsed and non-rinsed aetm chromium conversion coatings on aluminum and aluminum alloys intended to retard corrosion; as a base for organic films including paints, plastics, and adhesives; and as.

Films are normally applied by dipping, but may also be applied by inundation, h921, roller coating, or by wipe-on techniques. Please login to your authorized staff account to use this feature. Search book title Enter keywords for book title search. From beautiful Pine Beach New Jersey: Coatings shall adhere to specified electrical resistance, adhesion, and corrosion resistance requirements.

Both impart a clearly visible blue color to the trivalent chromate conversion coating and do not reduce salt spray testing hours. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application.

Non Hexavalent Chromium Conversion (Clear)

All information presented is for general reference and does not represent a professional opinion b9921 the policy of an author’s employer. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

Click here to download full list of books. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use. b9221

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Also, is there a way to determine if the finish truly exists. AnoChem TCP is an excellent solution for the following applications:. Today, some 12, ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence.

Link to Active This link will always route to the current Active version of the standard. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. None add yellow to their product. Anoplate maintains an extensive list of corporate approvals and certifications.

Register for a trial account. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. AnoChem TCP is an excellent solution for the following applications: Copyright Compu-tecture, Inc. Sorry, I don’t have a copy of ASTM B handy so I cannot interpret what it says, and what finishes might comply with it, and whether they can be dyed yellow.

Non Hexavalent Chromium Conversion (Clear)

Land Use and Development. It is clear, very thin, and cannot be dyed. Coatings shall adhere to specified electrical resistance, adhesion, and corrosion resistance requirements.

I have just checked today with several chem. We work in partnership with some of the largest and most respected names in industry. Are you sure you want to empty the cart?

Traditional hexavalent chromium right has its characteristic gold iridescence. This may be what your vendors have switched to. Anoplate will be closed B92 24th, 25th, 31st and January 1st.

My question is, would they be eliminating the gold tint strictly due to environmental concerns or as h921 easy differentiation between finishes and will the finish still be in compliance with ASTM B?