Rust Proof and chemical resistant coating for steels
Rust Proof and chemical resistant coating for steels
(OP)
I have a mechanical assembly that will be attached to the head of a numerous engine types as a research and development tool. Unlike most assemblies on an engine head, this assembly is totally sealed and will not be exposed (externally)to engine oil. As a result, the system will rust. I need a coating that can be applied that will not allow rust to form.
During development the system will potentially be exposed to the following:
-Humid sealevel ambient conditions (including salt in the atmosphere)
-Engine oil (during assembly and dis-assembly
-Deisel Fuel
-Gasoline
-Solvents such as methanol (used to clean the parts)
-Carburator Cleaner
The materials I need to coat are - 4140 with a carbonitride coating and Grade 12.9 4037.
Does anyone have a suggestion of a coating I can use? This coating can be a "line-of-sight" type coating or chemical dip type coating (or any other type really). Please keep in mind I would like to apply this coating after heat treat so the coating process should not include heat exposure above the tempering temperature of the materials (400-450°C)
Thanks,
Chris Turner
719-686-6061
Sturman Industries
cturner@sturmanindustries.com
or cturner77@comcast.net
During development the system will potentially be exposed to the following:
-Humid sealevel ambient conditions (including salt in the atmosphere)
-Engine oil (during assembly and dis-assembly
-Deisel Fuel
-Gasoline
-Solvents such as methanol (used to clean the parts)
-Carburator Cleaner
The materials I need to coat are - 4140 with a carbonitride coating and Grade 12.9 4037.
Does anyone have a suggestion of a coating I can use? This coating can be a "line-of-sight" type coating or chemical dip type coating (or any other type really). Please keep in mind I would like to apply this coating after heat treat so the coating process should not include heat exposure above the tempering temperature of the materials (400-450°C)
Thanks,
Chris Turner
719-686-6061
Sturman Industries
cturner@sturmanindustries.com
or cturner77@comcast.net





RE: Rust Proof and chemical resistant coating for steels
TTFN
RE: Rust Proof and chemical resistant coating for steels
Chris Turner
RE: Rust Proof and chemical resistant coating for steels
How about electrocoating? It will provide corrosino resistance in your conditions, but may be somewhat costly for a single piece.
Actually, a good epoxy-based paint ought to work also.
Regards,
Cory
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.
RE: Rust Proof and chemical resistant coating for steels
RE: Rust Proof and chemical resistant coating for steels
Regards,
Cory
Please see FAQ731-376 for tips on how to make the best use of Eng-Tips Fora.
RE: Rust Proof and chemical resistant coating for steels
Jim Treglio
Molecular Metallurgy, Inc.
RE: Rust Proof and chemical resistant coating for steels