Small mixing cups - where?

[bigegg]

the thinner is almost certainly butoxyethanol, also known as glycol ether.

one brand name is "cellosolve" by Dow chemicals, who will have a big technical department somewhere (possibly the states)

do you happen to know the brand/source of the mixing cups which work? do they have a recycling arrow stamped on them ? which would give an idea of the sort of plastic used.


a quick Google suggests that disposable mixing cups are polypropylene, but I can't find anything online about whether it is affected by these thinners.




I never worked with screen printing inks - they were a very small part of my office's work and it was left to my day-time counterpart, so sorry I can't help further.

 

[julianf]

to update,

i looked at the cups i had, and they had the recycling symbol with "5" in it, which means theyre Polypropylene

ive left it too late to ask sellers what plastic their unmarked cups are, so ive just bought these -

https://www.ebay.co.uk/itm/50x-QUAL...h=item212b0297bc:g:DQgAAOSw-0xYic2d:rk:1:pf:0


which are more expensive (slightly) than the 600ml ones i have been using, but theyre so much more of a sensible size, that ill get that much less waste.

im paying about £100 / ltr for the ink and i think the catalyst works out something insane like £400 / ltr (not that, at 20:1 and a limited shelf life you ever buy much at a time) so not wasting it is good with me.

thanks to all for their help.