Thread: resin casting colours

Originally Posted by defender

Hi all
I am having lots of trouble when casting, with colours my colour runing into each other
changing the colours I need [yellow & blue end up green] and so on with others colours .
hoping some one can put me in the right direction ?
Steve

I'm no expert by any means but it sounds like you are not letting the different colours gel enough before pouring into your mould and hence are mixing too much.

Cheers

Shawn

As Shawn says, you are not letting the resins set enough before pouring. Watch some of the videos in our Videos section (see top of page) and it will give you some guidance. Mixed colours is an art, with PR the difference between too runny and gel can be 10 seconds in warm weather

I have been waiting for gel to start it just beats me every time.
by the time one starts the other starts. end up with all colours in one big mess
I am pouring 4 colours in one mould
Steve

What is your catalyst ratio, you may need to reduce the catalyst to slow the set especially in this heat. It also means you have to be patient waiting for the set. Practice makes perfect also the larger the pour the more heat is generated, thus once gelling starts it happens quickly.

Originally Posted by defender

I have been waiting for gel to start it just beats me every time.
by the time one starts the other starts. end up with all colours in one big mess
I am pouring 4 colours in one mould
Steve

You don't want it to gel, you want it to thicken, just prior to gelling. See Casting a Pen Blank Slab - YouTube and Day 1 #4 Casting tubes Mixed colors