What primer for Roundhouse white metal buffers?
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- Cleaner
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What primer for Roundhouse white metal buffers?
I am looking to paint the white metal buffers on my Roundhouse Katie. My question is, can I use a standard grey primer (something from Halfords for use on a car) or should it be an etch primer ?
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- Fireman
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What primer
I ve used 'special metals primer' on alloys and its very good but a small tin is very large for a pair of buffers this size! It s Hammerite
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- Cleaner
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I only plan to paint the back section of the casting and leave the flat plate as bare metal. I’ve done a few other searches and several people say that Halfords grey primer should be fine. I already have a tin and also some etch primer but I wasn’t sure which would be better. I believe the etch primer penetrates the oxidisation found on brass and copper but I don’t think these white metal castings oxidise in the same way. I’ll try the Halfords primer and let you know if it falls off within a short period of time.
I had the same experiance, i went to the effort of spraying a load of castings in red oxide primer, then painting them in topcoatKeith S:72613 wrote:YOu know, on white metal I have never found primer to be particularly necessary. The metal is already a greyish colour in the first place and the metal is quite porous so I find regular paint sticks to it quite well without bothering to use primer.
I then painted some wagon axleboxes that get knocked and banged loads, paint has stuck fine with no prep work.
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What primer for roundhouse white metal buffers?
I usually clean up the casting with a swiss file and wire wool. Then I polish up the face, paint the coupling with 2 or 3 coats of humbrol satin black, wiping the polished face with a rag and White spirit each time. I've never had paint come off any of my White metal couplings. Hope this helps.
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