Some plastics that are listed in an old "Modern Plastics, Encyclopedia
Issue" with Specific Gravity less than 1.0:
Polypropylene 0.9 - 0.91
Polybutadiene 0.97
Polybutylene 0.91 - 0.925
If other resins were were modified, say with entrapped air, (foamed or
glass spheres,) that would help them float.
______________________________ Reply Separator _________________________________
Subject: re: electrical hardening
Author: NECOINC@aol.com at INTERNET
Date: 1/31/2000 5:21 PM
Folks
has any one ever heard of a liquid material that hardens with an electrial
current or a plastic material that will float in water.
For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
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