I used a long Snake Neck Attachment in my electric drill with a softer brass rotary brush (not steel), which allows me to "Get At" every small part of the casings to remove paint.
Its best NOT to press or apply any pressure, just let the rotary brush do its job lightly which takes more time but does not scar the alloy surface.
Dont forget to give the alloy surface a good wash and rub with cellulose thinners then warm it up with a heat gun or hair dryer to make sure its all dried.
Regular Smooth Hammerite is more than good enough and lasts for a long long time if applied to a good clean surface.
I would suggest at least 2 coats.
Pete F
UK
Why Have Four When You Can Have Six ?
The following user(s) said Thank You: beertad
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