Re: duct tape

[Richard Knoppow <dickburk@ix.netcom.com>]

----- Original Message ----- 
From: "Judy Seigel" <jseigel@panix.com>
To: <alt-photo-process-l@usask.ca>
Sent: Monday, December 04, 2006 6:44 PM
Subject: duct tape


> On Mon, 4 Dec 2006, Camden Hardy wrote:
>
> > I use sharpies for everything. They're right up there 
> > with duct tape. :)
>
> Be advised -- the post office (or my post office) has a 
> new rule against duct tape. They say it gunks up their 
> machine. If you have visible duct tape on a package they 
> won't take it.
>
> J.
   Most office supply stores have several types of tape for 
shipping. Light duty "sealing tape" is transparent, high 
strength, plastic tape with a strong adhesive. For heavier 
boxes one needs what is called filiment tape. This is a 
heavier plastic tape with filiments of fiberglass embedded 
in it. Its very strong in tension.
  Duct tape is often confused with Gaffer tape. Duct tape 
is intended for wrapping air and water ducts. It has a 
lightly re-inforced plastic body with a very agressive 
adhesive wich migrates and gets all over everything. Its 
very hard to remove. The reinforcement looks like 
cheesecloth. Gaffer tape is an easily removable tape with a 
non-migrating adhesive. Its made of a cloth with a bias such 
that it tears easily across the tape but has considerable 
tensil strength the long way. Its used in the motion picture 
industry for all sorts of temporary fastenings. It was 
intended to be removeable without damaging paint but I 
wouldn't count on it.

---
Richard Knoppow
Los Angeles, CA, USA
dickburk@ix.netcom.com