The scale works great. But if you buy one, make sure it has small
increments. Mine measures with an increment of 2g (that is 0.07oz in stone
age units), and that's clearly not accurate enough to do small quantities
of resin mix. Take one with zeroing function as well, so that you can zero
it with your empty container on, or even with the first paert of the mix
in the container. Very convenient.
When I bought the scale, I came back home and said: "Darling, I bought you
a very nice kitchen scale!" My wife said: What do you want me to do with
that? You know I dislike complicated things in my kitchen!"; "Oh!" I said.
"Sorry. Not a problem, in that case, I will use it to mix my Epoxy
resins!" ;-)
Serge Vidal
KR2 "Kilimanjaro Cloud"
Paris, France
"Brian Kraut" <brian.kr...@engalt.com>
Envoyé par : krnet-boun...@mylist.net
2005-07-19 05:40
Veuillez répondre à KRnet
Remis le : 2005-07-19 05:40
Pour : "KRnet" <kr...@mylist.net>
cc : (ccc : Serge VIDAL/DNSA/SAGEM)
Objet : RE: KR> epoxy pumps.
I use a small digital scale now that I got at Office Depot for about 30
bucks and I will not go back to measuring by volume again.
I used to use syringes also when I measured the epoxy by volume, but
instead
of directly syringing the epoxy I used to use water in the syringes to get
the volume markings I was looking for in a clear plastic cup then I would
dry the cup and put the epoxy and hardener in to the marks I made.
I also highly recommend saving your T-88 squeeze bottles to put your
laminating epoxy in later or using ketchup and mustard bottles. The T-88
bottles clean out good with vinegar or acetone.
Brian Kraut
Engineering Alternatives, Inc.
www.engalt.com
-----Original Message-----
From: krnet-bounces+brian.kraut=engalt....@mylist.net
[mailto:krnet-bounces+brian.kraut=engalt....@mylist.net]On Behalf Of
haroldwoods
Sent: Monday, July 18, 2005 1:22 PM
To: kr...@mylist.net
Subject: KR> epoxy pumps.
Hi Netters.
For those that measure their epoxy by volume, I suggest instead of pumps
use
syringes. Go to the local drug store and buy a 50 ml syringe. They are
cheep. Even though you may be using 1 volume to 1 volume of epoxy to
hardener get different sized syringes. The reason is that sooner or later
you will stick the epoxy syringe into the hardener by mistake. If the
epoxy
is a thick type, cut off the needle fitting and run a 3/16" drill into the
end of the syringe. This will make it easy to draw up the thick epoxy.
Next
use a fine tipped black permanent marker to go over the volume markings on
the side scale of the syringe. Otherwise the epoxy will gradually dissolve
off the marking. Add a stripe of colored tape down one side and on the end
of the piston. Cover the entire cylinder with clear cello tape. This will
preserve the volume marking indefinitely. Stand the syringe in a can or
jar
after each use. Do the same with the hardener sysringe but use a different
colored tape on it. I use plastic jars for the epoxy and hardener. Peanut
butter jars (plastic) work well. Color code them too.
It does not take long to estimate the volume of epoxy that you require for
a
particular job. Don't mix more than you require. Get a couple of small
syringes too for small jobs. Get a pair of 5 ml, 10 ml and 20 ml
syringes.
This way you will always have the exact mixing ratios in your glue. With a
syringe you can see that you have the required volume. You are not relying
on a pump which might have sucked a bit of air around the piston or might
not have been pushed all the way to the top or bottom of it's travel. And
don't forget the gloves. Keep that epoxy off your skin. I think that the
blue "Tyvec" gloves are the best. They are tougher than latex or vinyl
gloves. Clean the gloves off with "varsol", hang them up to dry. Next time
use "Baby Powder" on your hands before putting them on again. They will
last
a long time this way. Sorry if I got a bit wordy.
Harold Woods
Orillia, ON Canada
haroldwo...@rogers.com
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