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Re: Margin of safety
By:Pete Rudie
Date: 3/15/1999, 1:30 pm
In Response To: Re: Margin of safety (Rick Sopel)

George's grasp of the technical issues and devotion to quality are admirable. My overall point is that sometimes you can't see the forest because all the darn trees in the way. Opinions are like noses, everybody has one. But when it comes to epoxy, I use more in an average day than George does in an average year. Not in boats, mind you, but in conditions that are far tougher.

Industrial floors take a hell of a beating. Forklifts drive over them all day, people drop tools and castings on them. Secondary chemical containment facilities may have to resist nitric acid at pH 0 or ammonium hydroxide at pH 14. If it's under a dip-tank line, it the liquid may be hot. If my stuff doesn't work, I get to replace it at my cost. 15 years of experience and 3,000,000 sq. ft. have given me a pretty good perspective on polymer adhesives and coatings, including lab work with ASTM tests on compression failure of epoxy cubes and tensile failure of epoxy "dogbones", and I iterate that 1-month-old epoxy is essentially risk-free. Of all the things to worry about in building a boat, this is at the bottom of my list.

Messages In This Thread

Re: Margin of safety
Rick Sopel -- 3/14/1999, 8:59 pm
Re: Margin of safety
Pete Rudie -- 3/15/1999, 1:30 pm