Re: [ATM] polishing plastic

["Lafotec" <lafotec@thewaynet.com.br>]

----- Original Message -----
From: "Dominic-Luc Webb" <dlwebb@canit.se>
To: "Don Clement" <clement.focuser@verizon.net>
Cc: "ATM Superheros" <atm@atmlist.net>
Sent: Thursday, December 22, 2005 11:22 AM
Subject: Re: [ATM] polishing plastic


>>>Hi Dominic:

>>>CeO has wide employment in acrilic and hard resin ophthalmic lens
polishing, and those are kind of thermofix plastic resins too.
>>>I don't know if other, may be more expensive, polishing product is
necessary to polish plastic lens and get a better finish, as long as with
CeO you can get the resin substrate  limit in surface quality.
>>>Of course in this case, surface quality is a matter not only of polishing
media, but also of the pad and the plastic material mainly. Plastic lens
polishing process also demands constant and precise temperature control,
otherwise you will not be able to get even a acceptable figure.
>>>Generaly speaking, plastics are not yet the best optical materials around
and it's ease to evidence that, just look at any spectacle glass after one
year of wear.
>>>Laercio.



> Interesting that CeO and rouge are not mentioned anywhere. They
> are selling grits some of us use for fine grinding glass for purpose
> of polishing plastic. By a few accounts, it works well (for plastic),
> quite interesting! I would not have thought to attempt to polish metal
> and plastic surfaces with SiC or AlO grit.
>
>
> Dominic-Luc Webb

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