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Originally Posted by stitch4you |  | | | | | | | | | I did use the catalyst they sent with the ink and weighed it on a digital scale to insure the mixture was right but what may supplier told me. Which they said 90 % ink and 10 % catalyst. | |  | |  | |
At one time, I printed 50 flags using the same ink. At the time, I did the same ratio (or so I think), and all 50 flags were sticky to the touch. I ended up redoing them all.
I'm not sure how you mixed your inks, but it can get confusing. In order to get the 10%, you don't multiply the weight by 10% and then add, because you will use a lesser amount than needed. I don't want to assume you don't know how to do this, but I want to show the way I would do it to make sure I had the correct amount and for others who may wonder how to mix ratios.
If the ratio was 90% ink and 10% catalyst, combined, there is 10 parts. 9 parts ink, 1 part catalyst. So you would take the total weight of the ink and divide that by 9. Whatever the amount comes to, you would add that much in catalyst to the ink.
I.E.: 2000 grams of ink divided by 9 is 222.2 grams. If you add this much catalyst to ink, you will have 9 parts ink, 1 part catalyst. Sometimes people will take 10% multiplied by 2000 which only gives 200, in this case, 22 grams short.
Personally, after my experience, I'd mix 15%. I'm pretty sure I mixed 10% at the time, but it just didn't do the trick, and with their specs, I never could figure out why. In this case, the ratio would be 15% catalyst, or 3/20ths. So since there are 20 parts, 3 are catalyst and 17 are ink. So you would take the 2000 and divide by 17, then multiply by 3. This would give you how many parts you would need in catalyst (352). So the total weight with ink and catalyst would be 2352 grams (52 more than if you multiplied 15% by 2000).
Hope this make sense.
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