From: Emery Greg 
To: atm{at}shore.net
Reply-To: Emery Greg 



Hi:

For my 8" f/6 I stripped the inside and outside of the tube.  I then
sealed with a water sealer followed by paint.  Flat black inside, colour of
choice outside.

Depending on the manufacturer, the wax layer is very thin.  If you peel
just the first layer, the impact to most tubes is minimal.   I believe the
inner and
outer layer play roles in water retention and penetration.  It is the thich
inner layers which offers the mechanical support, IMO.

ttfn
Greg


----- Original Message -----
From: Guy Brandenburg 
Date: Sunday, August 10, 2003 4:30 pm
Subject: Re: ATM Stripping Sonotube

>
> A person in my workshop didn't strip it at all - he just spray-
> painted
> it with black spray paint, then threw in some sawdust, then spray
> painted again. It seems to be holding. You might want to cut off a
> small
> section of the tube and experiment to see if this works for you.
>
> Guy B
>
> Thomas Rutherford wrote:
> > I am attempting to make what is essentially the 10" f/6 telescope
> > featured in Berry's book.  My question is-- should I use a chemical
> > stripper to remove the wax coating from the inside of the tube
> or should
> > I simply peel it off (which will remove the innermost layer of
> paper,> thus making the tube thinner).  The mirror that I will be
> using is a
> > full thickness one in its original metal mirror cell from the late
> > 70's.  Will the tube still be strong enough if I remove the
> innermost> layer of the paper laminate?
> >
> > Thanks.
> >
> >
> > Tom Rutherford
> > Blountville, Tennessee
> >
> >
>
>
> --
> Guy Brandenburg
> Washington DC, USA
> http://home.earthlink.net/~gfbranden/GFB_Home_Page.html
>
>
>
>
>

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