What is Iropla Plastic Clay Oyumaru?
Iropla Plastic Clay Oyumaru is what came up to me when I was researching the most cost-effective, cheapest way to duplicate small plastic parts for broken or missing gunpla pieces. For starters, I just went to purchase this cute looking clay item for kids that’s meant for creating imitations of sweets or confectionery candies, but it has something more than being just a clay.
“Oyumaru” is a thermoplastic material, which becomes soft when heated and hard when cooled. This product is otherwise known for creating molds to cast and replicate small plastic parts/pieces. Oyumaru can be cooled and heated several times without any change in their chemistry or mechanical properties making it highly reusable as a mold application.
In the western world, you might have heard “Blue Stuff”, well that is exactly similar to Oyumaru.
How to cast a small plastic part
Creating an Oyumaru two part mold consisted of:
1. Requires boiling water
2. Soak the oyumaru bars to the boiling water
3. Wait till the oyumaru appears to become softer
4. You can yank the material out of the water using a fork or
5. After a while (if its not too hot anymore) you can try to kneed the material like a clay
6. A two part mold means you need to have two separate oyumaru.
7. Then you press the original part to clone onto one of the oyumaru, then sandwich it with the other one.
8. Gently apply pressure.
9. Wait till the mold cools off and becomes harder like the way it was initially.
10. Release the original part and now you have a two part mold.
