The West pump system is fool proof.
If a release fabric is applied over the surface of fresh epoxy, amine blush will be removed when the release fabric is peeled from the cured epoxy and no additional sanding is required.[/I]
Excepting micro mixes. They just putty on. I haven't found a better micro mix than West105 and balloons. Dries white, hard, and sands clean. 5minute is ok for plugs and quickie bonds, but it actually takes way longer to sanding cure than the fast hardener West. The pumps are a must have. Perfect, quick micro mix to your needed consistency right now.
Yeah, very useful for dispensing into a cup so you can proportion by weight
Dan, have you found pump sets where the ratio was off?
It does require a specific pumping technique to be sure to get a correct ratio.
Found pump sets that blew bubbles, spoiling the cup in progress.
Even with pumps available, a scale allows mixing as little as 10 grams of West...or anything else. The ratio is perfect, every time. There are nice digital scales which don't cost much more than a West pump set. I use an old balance scale.