Oyumaru or Instant Mold is a fabulous reusable instant moulding material!
This great Japanese silicone non-stick moulding material is re-usable, so you can keep using and reusing it to make loads different mould shapes. Perfect if you need to make lots of moulds but only need a few copies cast from each mould.
Oyumaru is a reusable putty, which is softened by heat (put it in a mug of hot water). Once shaped it cools and hardens in just minutes into a hard, slightly rubbery, plastic. It does not stick to Art Clay, PMC, polymer clay, Green Stuff, Kneadatite, Epoxy Putty, Stick Putty and other common sculpting putties.
This product is sometimes referred to as Instant Mold.
Oyumaru/Instant Mold picks up detail surprisingly well. It is excellent for fingerprints (and for our gamers and model makers; casting replacements or making your own extra bits like: weapons/shoulder pads/armour designs/boneswords/lash whips/fairy wings for army models/nids/wargaming/faery making).
- Place the Oyumaru block in hot water for a few minutes (a mug with hot water from the kettle works great)
- Once soft, shape as you like or impress original. If you change your mind and want a new mould, just re-heat in water and start again! And again. And again. And... so on.
- Once happy, leave your mould to cool off and harden, and then it will be ready to use!
Combine several sticks to make larger moulds.
PS. Don't put this on your hotplate to dry your metal clay - your mould will soften and lose its shape! Only air-dry until the metal clay is dry enough to pop out of the mould.
No shelf life. Can be heated and moulded over and over.
Each stick is around 6cm long, and you get a box of 7.
* Not registered as food grade
Also sold in a bulk 24 pack!
Bought this to make some small parts that were broken. Easy to use and makes molding easy. sticks are small (60mmx15mmx7mm). So for larger items will need to melt more sticks together. Great product. would buy again.
molds and remolds well. No English instructions, so I'm glad I read about putting it in boiling water on the web site.
Bought this product on the off-chance to qualify for free postage and haven't had a chance to use it yet, so can't comment on its effectiveness. To be fair, the reviews from people who have actually used it suggest it's great! However, I think it's probably also fair to comment that this is a VERY small quantity of moulding material - the Christmas Cracker prize size of moulding material really! I'm not sure why it comes in different colours because in order to mould anything bigger than a penny you would need to mix a few sticks together. But I guess that's not a major problem in the scheme of things! **RESPONSE FROM METAL CLAY** Thanks for your review and we hope you enjoy working with this product. The sticks are rather small but are more than enough to do a mould of a fingerprint, small seashell, button, coin, etc and like you said, the sticks can easily be joined together to make a larger moulding surface. Also don't forget, they're re-usable! So if you're not happy with your mould or you're done with it and want to mould something else, just drop it back into the hot water and re-use!
Had to buy more as I was trying to do two things at once ! It works well and picked up fine details as well as shape.Very happy.
We use this product to take fingerprints. The fact that it can be reused if we don't get it right first time means that it's ideal for this. The bright colours are also lovely.
I use this to cast resin and it is much better than I had expected. The detail it picks up, the ease of demoulding, the fact the same mould can be used more than once and also melted and remoulded - amazing value. and very pretty colours.
So easy to use and gives very detailed results (with a little practice). It really is as simple as dropping it in a pot of recently boiled water, leave for a little while and then it's pliable, but the best bit is that if your first attempt at the mould doesn't work, drop it back in the hot water and then try again :)
I bought some of this and popped a piece into a cup of hot water (as per instructions) and then spent the next half hour trying to gather the stuff back into a useable piece again. It became so soft and stretchy I couldn't control it. At least it can be re-used, I had another go and used a shallow tin lid which cooled everything down and worked better. So, don't use HOT water. I did manage to get good results eventually.
Seriously easy to use! For the price its worth a shot!