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Glenn
Tinkerer
Username: Glenn

Post Number: 733
Registered: 07-2006

Rating: N/A
Votes: 0

Posted on Tuesday, January 05, 2010 - 08:47 am:   

Never use Brasso to polish an assembled body or lens! It is ideal to remove scratches in paint work and on un-lacquered alloy parts which are dis-assembled, these can then be cleaned down with naphtha and a tooth brush. If you use Brasso on old lacquered alloy which has been handled a lot, the product will start to remove the lacquer coating - which will have been softened by skin oils and age.

Brasso makes a very good lapping compound for components made to high dimensional tolerances - I have used it to 'smooth' out the operation of lens helicals and shutter gearing etc, especially when the said mechanism has been built up from used parts obtained from a number of scrap items. you should be careful therefore to ensure that no abrasive residue finds its way into the camera interior.

Personally I always clean and polish the parts in the dis-assembled state, the final polishing of the assembled item being a light buffing with 'Renaissance Wax'. This wax polish not only protects the item from finger marks, but prevents corrosion on metal parts and protects leather and leatherette from hardening and cracking - gives a nice sheen to wooden parts and black paintwork also.

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