Re: [ATM] Fiberglass tubes

[Daniel Fundo <fundo@bellsouth.net>]

<<  It's the best unless you intend to use it to line the inside of a
tube that has already been painted.  In my experience, adhesion is poor
to painted surfaces (particularly flat black), which is on the inside of 
almost any dob.  (It seems to stick fine at first, but then gradually 
it loses its grip.)  >>

Application technique is everything.  That includes a thorough
cleaning!  I've had one piece stuck in a tube for 15 years...... maybe
longer.  That telescope gets used regularly.  I bought the flocked
covering when it first came out with the new adhesive (15 yrs IIRC).  I
have one piece in the fiberglass tube of my 12.5" when it was in that
configuration.  That tube as been outside for 6-7 years now, and I just
checked, the edges are coming loose, but it is still firmly attached to
the PAINTED inside of the tube, opposite the focuser.

*****-----
Dan F.
Former Secretary/MAS
Memphis, TN
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