Permanent alcohol based inks for painting/detailing urethane rubber puppet surfaces

I know this is a subject of beating a "dead horse" and I know that typically pigments made for urethane rubber are recomended/used for pigmenting/painting urethane rubber surfaces.Ron as I recal was using permanent markers diluted in alcohol (or was it paint thinner,or some other solvent?) and airbrushed in transparent layers and/or applied as washes to the puppet surfaces if I am not mistaken?I found some *NEW* Japanese markers at an art store(sorry,forgot the brand name).They are "alcohol based" and supposidly permanent,acid free,dry fast...all the *positive stuff* we like to hear.You can also get most of the the inks in liquid form and there are a good 50-100 different colors,shades and tones to choose from.The display case was HUGE.I was wondering if these art ink markers would be sufficient to use on urethane puppets for painting/detailing?Also(and this is a stretch),but can alcohol based inks be used on silicone puppets,or has that been tried and failed when attempted?

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Smooth-On sells Polytek74-30?Is that a pretty "firm/hard" urethane rubber?

Yes, 74-30 is specifically made to be a mold making rubber and is pretty tough stuff. It's great if you'd like to have the option to cut the mold open instead of making two halves because it's a very clear amber color. You can see very clearly right through it even if it's thick and that helps with both the mold making and casting. Best of all, 74-30 is one of the more affordable mold rubbers out there.

I am going to use Ecoflex 00-10 for the puppets. I am just learning all of this stuff, stop motion included, over the last few months. I had originally  been planning to use plaster mould to cast silicone but when the guy at FibreTek, where I got the supplies, suggested the vytaflex for the mould. If it DOES work it will hopefully allow for tons of casts before it starts to deteriorate. It is pretty rough looking but I learned a ton of stuff doing this test mould

So far the shore hardness of 50 that the urethane has seems to be firm enough. I would love to use silicone moulds. It looks like silicone is the only thing that sticks to silicone. Does that mean horrible mess even if the contrast in hardness between cast and mould is adequate using silicone mould and silicone cast?ha ha



TEDCO Studios said:

"I would love to use silicone moulds."

Use urethane rubber instead. Polytek makes as rubber called Poly 74-30 that's perfect for making rubber molds you can cast platinum cure silicone out of and it works great.

Thanks very much Ron, 

I will make sure to try out a test mould with Polytek 74-30 before choosing between the two. The Vytaflex 50 seems definitely stiff enough to do the trick. Any imperfections in the mould I am sure are human error;) There is a picture of the mould that I posted recently 

http://www.stopmotionanimation.com/profile/TEDCOStudios

I learned to make sure next time to use a flat sided mould, to make a cleaner transition between halves and to make nice clean keys. I pushed six main ones and a couple of smaller ones just to see the varying results and learned my lesson.

Thanks again and sorry guys for having strayed the conversation from the topic question about painting.

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