Boat Building Forum

Find advice on all aspects of building your own kayak, canoe or any lightweight boats

Or, 58 1/1000's inch! :)
By:Spidey
Date: 1/31/2001, 5:50 pm
In Response To: Re: You mean 1.96% error (Spidey)

Another way of looking at would be to look at the overall increase in volume as a result of the lighter hardener . . . This turns out to be 2.94% for a 2:1 mix. If you end up mixing 2 inches of resin in a mixing cup, and assuming the measuring cup is a cylinder, that amounts to 58 thousandths of an inch. If the measuring cup is tapered, as most are, it's about half that, perhaps 30 thousandths of an inch. The viscosity will cause the resin to creep up the edge more than that, probably producing more error than weighing the stuff . . . ;-)

Really, I have weighed in a graduated cup as a test when first beginning, and I couldn't tell any difference.

Spidey

Messages In This Thread

Slow Epoxy and seams
Scott Hicks -- 1/30/2001, 12:57 am
Re: Slow Epoxy and seams
Jeff -- 1/30/2001, 9:25 pm
Re: question #2
Ross Leidy -- 1/30/2001, 12:49 pm
Mixing epoxy
Pete Rudie -- 1/30/2001, 12:36 pm
Re: Mixing epoxy
Scott Hicks -- 1/30/2001, 2:47 pm
Re: Another way
Spidey -- 1/30/2001, 7:35 pm
Re: Another way
John Monfoe -- 1/31/2001, 4:25 am
Caveat
Pete Rudie -- 1/31/2001, 12:30 pm
Re: You mean 1.96% error
Spidey -- 1/31/2001, 5:09 pm
Upon further reflection...
Pete Rudie -- 1/31/2001, 5:55 pm
Re: scale is better, but test your brand first.
Tony -- 2/1/2001, 7:11 pm
Re: Food Fight! :)
Spidey -- 1/31/2001, 7:09 pm
Re: So, the thing to do...
Grant Goltz -- 1/31/2001, 6:04 pm
Or, 58 1/1000's inch! :)
Spidey -- 1/31/2001, 5:50 pm
Slow Epoxy: GOOD-BYE!
Scott Hicks -- 1/31/2001, 4:48 pm
Re: Mixing epoxy
Pete Rudie -- 1/30/2001, 4:16 pm
Re: Slow Epoxy and seams
Charles Cooper -- 1/30/2001, 11:48 am
Re: Slow Epoxy and seams
David Hanson -- 1/30/2001, 9:35 am
Re: Slow Epoxy and seams
Scott Hicks -- 1/30/2001, 12:02 pm