Anyone willing to do some resin-casting?

[gionc]

Originally Posted by leokc_ng

It will cost you less than $10 to get a small box of oyumaru, and I am pretty sure most of the moduller in here had their 2 party putty

I would like to know more, and where I'll purchase. I'm familiar with 2K silicoon but I?m just curious about this product. Also: may the "shore" or the hardness be changed simply cooling (or warming) a bit the stuff? Or have it a narrowed range of temperature to work well (ex. just out of the refrigerator?)

Anyway thanks a lot: info like that are ever precious.

[drunken monkey]

not sure if it's the same thing but I used stuff called "vinyl mould" way back in art college for making some temporary negatives. To use, we would melt it in a hot melt pot (like the one you use for wax and sugar glass) and like the stuff you mention, is re-useable.

There are/were available, several different grades that you could also mix whilst hot to vary it to your liking.

[leokc_ng]

Right this is how it look like guys



When you boil it in 80 degree water, it will be softern to a form like chewing gum, so you can make it wat ever shape you like. It will turn back tor rubbery form when it cool down to room tempeter (Is pretty much like shapelock / polymorph but is in rubber form when cool)

When the mold is done, apply 2 parts putty to each side of the mold
then press the mold together to squeese out the extra putty. Demold the putty when it is 70% to 80% hard. Then clearn up the molding line

BTW if u can buy oyumaru this from lots of online art and craft shop
Just spend some time google and I am sure u will find a supplier close to you.

[MPWR]

Wow, 300 yen? That's got to be worth trying!

[jano11]

80 degrees Celsius or Fahrenheit?

What I'm a bit worried about is it's viscosity at lower temperatures, as you can't pour hot silicone on a plastic part.

[leokc_ng]

Originally Posted by jano11

80 degrees Celsius or Fahrenheit?

What I'm a bit worried about is it's viscosity at lower temperatures, as you can't pour hot silicone on a plastic part.

80 Degrees celsius. it is like solid silicon rubber in room temperature

When heat up in hot water, it doesn't melt, just soften into a form like chewing gum. So you don't pour it over the plastic part. just place it on top of the parts you want to copy. and wrok around with your finger.

Most of the plastic won't melt in 80 degree celsius. If you worry try to dip your junk parts to 80 degree water and test it.

base on my experience it is pretty safe on plastic parts. And don't forget plastic is not a gd heat conductor. So even if your oyumaru is currently at 80 C it really take ages to transfer the heat to your plastic part.