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Tungsten filled epoxy.
By:John Monroe
Date: 12/20/2004, 4:04 am
In Response To: Graphite Experience (Jay Doorly)

: I have applied graphite/coloidal silica (same as cabosil)/epoxy from the
: shear down on my AT14 for the last two years. I typically use 2
: tablespoons in my 4 ounce mix (3::1 hardener), though I have tried much
: higher ratios. Initially I did it for anti abrasion purposes but was
: dissappointed that I saw only degrees of improvement, but yes there is
: definately a reduction in gouging and the boat glances off from most
: impacts. The bottom still required routine inspection and repair of deep
: gouges.

When I was in the model making trade we used a Ren Plastic epoxy surface coat (RP-3260) that was filled with Tungsten that was so tough that it could only be drilled and machined with Carbide tools. This stuff would round over a high carbon steel drill on the first plunge. I have often thought if I build one more boat I might try this on the hull. It is nearly impossible to sand but I think it would hold up well scraping over rocks

John

Messages In This Thread

Strip: Cloth weight opinions
Holmes -- 12/17/2004, 12:33 am
Re: Strip: Cloth weight opinions
Jim Looker -- 12/20/2004, 10:49 am
Re: Strip: Cloth weight opinions
J. R. Ackley -- 12/21/2004, 7:55 pm
Re: Strip: Cloth weight opinions
pikabike -- 12/17/2004, 12:58 pm
Re: Strip: Cloth weight opinions
Paul Jacob -- 12/17/2004, 12:53 pm
Re: Strip: Cloth weight opinions
Rob Macks -- 12/17/2004, 1:51 pm
Re: Strip: Cloth weight opinions
Paul Jacob -- 12/17/2004, 6:56 pm
Re: Strip: Cloth weight opinions
Mike Scarborough -- 12/17/2004, 9:18 am
Re: Strip: Cloth weight opinions
bryan gorr -- 12/17/2004, 2:53 am
Re: Strip: Cloth weight opinions
Thomas Duncan -- 12/17/2004, 8:00 am
Graphite Experience
Jay Doorly -- 12/18/2004, 1:59 am
Re: You are waxing poetic.
Gordon Niessen -- 12/20/2004, 7:26 am
Tungsten filled epoxy.
John Monroe -- 12/20/2004, 4:04 am
Re: Tungsten filled epoxy.
Robert N Pruden -- 12/20/2004, 12:42 pm
Re: Carbide filled epoxy. Blue *LINK*
John Monroe -- 12/21/2004, 4:08 am
in a candy store
LeeG -- 12/20/2004, 6:27 pm
Placebo effect
Brian Nystrom -- 12/19/2004, 8:44 am
Re: Placebo effect
Jay Doorly -- 12/20/2004, 11:41 pm
Re: Placebo effect-why?
Thomas Duncan -- 12/19/2004, 7:46 pm
Re: Placebo effect-why?
John D. -- 12/20/2004, 12:48 am
Re: Placebo effect-why?
Jay Doorly -- 12/21/2004, 12:40 am
Re: Placebo effect-why?
Rory -- 12/21/2004, 4:37 am
Re: Placebo effect-why?
John D. -- 12/21/2004, 2:11 am
Re: Placebo effect-why?
Brian Nystrom -- 12/21/2004, 12:27 pm
Re: Placebo effect-why?
Gennie -- 12/22/2004, 2:37 am
Re: Placebo effect-why?
Chuck in Pa -- 12/21/2004, 10:24 pm
Re: Placebo effect-why?
Jay Doorly -- 12/21/2004, 11:22 pm
Re: Graphite Experience
Thomas Duncan -- 12/18/2004, 10:38 am
Re: Graphite Experience
LeeG -- 12/18/2004, 9:26 am
thought experiment
LeeG -- 12/17/2004, 8:14 am
Re: thought experiment
Thomas Duncan -- 12/17/2004, 9:25 am
Re: Real experiment
pikabike -- 12/17/2004, 1:10 pm
Re: Real experiment
LeeG -- 12/18/2004, 9:10 am
Re: thought experiment *LINK*
Glen Smith -- 12/17/2004, 11:16 am