David,
For the plug to make the fiberglass parts for "Persistence," I used
standard construction grade sheet Styrofoam but coated it with Plaster
of Paris and then dry wall spackling compound, also used in house
construction, to achieve the final shape. That was then waxed for a
good mold release. That all formed a protective barrier between the
Styrofoam and fiberglass.
Dan H.
----- Original Message ----- From: "David Bartsch"
<dbartsch2236@hotmail.com>
To: <personal_submersibles@psubs.org>
Sent: Wednesday, May 23, 2007 10:59 PM
Subject: [PSUBS-MAILIST] Foam form
The following is dirrected at Alec Smith or anyone who has inquired
as to the tail section construction of his flying sub photos found on
the picture exchange.
Of what material was the original form created from as Styrofoam
dissolves with the application of fiber glass resin? POLYISOCYANATE?
The end product really is impressive! I would love someday to have
these skills.
David Bartsch
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603-529-1100
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