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Re: Epoxy: Beginner question- epoxy pumps
By:Sean Dawe
Date: 4/22/2014, 8:13 am
In Response To: Epoxy: Beginner question- epoxy pumps (aikijay)

I used pumps on my three previous projects because I thought they were the easiest/most convenient way of measuring. I left them in the cans from my last job back almost a year ago and now they are seized up. For my current project, instead of freeing them up *(which I've done before), I decided to go with measuring by weight. I have small digital scale I bought for when I was building Greenland paddles. I paid about $9.00 for it on sale at a local hardware store. I find the weight to be almost as easy as the pumps and easier than using calibrated mixing cups.

Simply put suitable any container on the scale, press tare to reset to zero. Add the hardener. (Note the weight) Press tare to reset to zero. In the case of West System, I've been multiplying the hardener by 5 times and adding that amount of resin. (West calls for 5.19 : 1 but acceptable ratios range between 4.84 to 6.20. I use 5 so that I don't need to use a calculator) Done.

It may sound more complicated but once you've done it a few times, it gets really easy. I am not sure if it's a coincidence or not, but I am finding the epoxy to setting up more "on schedule" than when I used the pumps. With the pumps, it seems that the epoxy often took a lot longer to set up than when using the scale. I am wondering if the pumps were off!! Anyway, I will not be going back to the pumps!!

With an accurate scale you can mix of very small amounts of epoxy with accuracy - something you cannot do with pumps!

Just my thoughts!!

Sean

http://www.canadiantire.ca/en/pdp/starfrit-5-kg-digital-kitchen-scale-0424076p.html#.U1ZcG_ldWSo

Messages In This Thread

Epoxy: Beginner question- epoxy pumps
aikijay -- 4/22/2014, 5:33 am
Re: Epoxy: Beginner question- epoxy pumps
John Messinger -- 4/22/2014, 6:43 am
Re: Epoxy: Beginner question- epoxy pumps
john vanburen -- 4/22/2014, 7:04 am
Re: Epoxy: Beginner question- epoxy pumps
Ken Blanton -- 4/22/2014, 7:27 am
Re: Epoxy: Beginner question- epoxy pumps
Sean Dawe -- 4/22/2014, 8:13 am
Re: Epoxy: Beginner question- epoxy pumps
Mike Bielski -- 4/22/2014, 9:49 am
Re: Epoxy: Beginner question- epoxy pumps
Sean Dawe -- 4/22/2014, 10:39 am
Re: Epoxy: Beginner question- epoxy pumps
A. Edie -- 4/22/2014, 12:36 pm
Re: Epoxy: Beginner question- epoxy pumps
Dan Caouette (CSCWC) -- 4/22/2014, 12:57 pm
Re: Epoxy: Beginner question- epoxy pumps
Donovan -- 5/1/2014, 8:53 pm
Re: Epoxy: Beginner question- epoxy pumps
Rod Tait -- 4/22/2014, 10:58 am
Re: Epoxy: Beginner question- epoxy pumps
Bill Hamm -- 4/23/2014, 12:18 am
Re: Epoxy: Beginner question- epoxy pumps
Nick R. -- 4/22/2014, 1:39 pm
Re: Epoxy: Beginner question- epoxy pumps
Jay Stallman -- 4/22/2014, 2:00 pm
Re: Epoxy: Beginner question- epoxy pumps
Dan Caouette (CSCWC) -- 4/22/2014, 2:07 pm
Re: Epoxy: Beginner question- epoxy pumps
Marc Upchurch -- 4/22/2014, 5:15 pm
Re: Epoxy: Beginner question- epoxy pumps
Dan Caouette (CSCWC) -- 4/22/2014, 6:12 pm
Re: Epoxy: Beginner question- epoxy pumps
Marc Upchurch -- 4/22/2014, 7:46 pm
Re: Epoxy: Beginner question- epoxy pumps
Dan Caouette (CSCWC) -- 4/22/2014, 8:08 pm
Re: Epoxy: Beginner question- epoxy pumps
Etienne Muller -- 4/23/2014, 4:27 am
Re: Epoxy: Beginner question- epoxy pumps
Dan Caouette (CSCWC) -- 4/23/2014, 8:11 am
Re: Epoxy: Beginner question- epoxy pumps
Etienne Muller -- 4/23/2014, 10:20 am
Re: Epoxy: Beginner question- epoxy pumps
Marc Upchurch -- 4/24/2014, 12:04 pm
Re: Epoxy: Beginner question- epoxy pumps
Bill Hamm -- 4/27/2014, 12:12 am
Re: Epoxy: Beginner question- epoxy pumps
Bill Hamm -- 4/23/2014, 12:24 am
Re: Epoxy: Beginner question- epoxy pumps
Bill Hamm -- 4/23/2014, 1:04 am
Re: Epoxy: Beginner question- epoxy pumps
Bill Hamm -- 4/23/2014, 12:21 am
Re: Epoxy: Beginner question- epoxy pumps
Bill Hamm -- 4/23/2014, 12:19 am
Re: Epoxy: Beginner question- epoxy pumps
Etienne Muller -- 4/22/2014, 1:53 pm
Re: Epoxy: Beginner question- epoxy pumps
Dan Caouette (CSCWC) -- 4/22/2014, 2:04 pm
Re: Epoxy: Beginner question- epoxy pumps
Mike Bielski -- 4/22/2014, 3:10 pm
Re: Epoxy: Beginner question- epoxy pumps
Jay Babina -- 4/22/2014, 3:28 pm
Re: Epoxy: Beginner question- epoxy pumps
Sean Dawe -- 4/23/2014, 8:21 am
Re: Epoxy: Beginner question- epoxy pumps
olli -- 4/23/2014, 10:14 am
Re: Epoxy: Beginner question- epoxy pumps
Bill Hamm -- 4/23/2014, 11:13 pm
Re: Epoxy: Beginner question- epoxy pumps
Ric Moodie -- 4/22/2014, 6:17 pm
Re: Epoxy: Beginner question- epoxy pumps
Jay Stallman -- 4/22/2014, 8:13 pm
Re: Epoxy: Beginner question- epoxy pumps
Ric Moodie -- 4/22/2014, 9:15 pm
Re: Epoxy: Beginner question- epoxy pumps
John D. -- 4/24/2014, 2:32 pm
Re: Epoxy: Beginner question- epoxy pumps
john vanburen -- 4/23/2014, 10:45 am
Re: Epoxy: Beginner question- epoxy pumps
Nick Riccardi -- 4/23/2014, 2:27 pm