Casting your Parts in 30 Min (No silicon rubber required !!!)

[Samuel_Takumi]

got 1 question, resin putty and epoxy putty are the same thing?

[jano11]

Originally Posted by Samuel_Takumi

got 1 question, resin putty and epoxy putty are the same thing?

Resin putty is a more general name, epoxy being one of the different kinds of resin.

So an epoxy putty is for sure a resin putty, but a resin putty can be an epoxy putty but also some other kind of putty.

[klutz_100]

Originally Posted by jano11

Resin putty is a more general name, epoxy being one of the different kinds of resin.

So an epoxy putty is for sure a resin putty, but a resin putty can be an epoxy putty but also some other kind of putty.

What kind of putty is potty putty?

BTW I ordered some Oyumaru today

[jano11]

Originally Posted by klutz_100

What kind of putty is potty putty?

That's a polymer.

[klutz_100]

Originally Posted by jano11

That's a polymer.

Yes, but is it the putty that is polymerized or the potty?

[Lownslow]

i found some on the US side
http://www.artclayworld.com/product_info.php

[Nate the Great]

how much comes in one container?

[SeanRally]

Is it possible to cast a 1/24 car body with oyumaru, and what putty do you recomend to have in bolk, or would it not be practical, i have a few rare rally cars that i would like to cast, on a cheaper basis than resin casting, any help would be apriciated

[rallymaster]

Seems hard to me to cast a full 1/24 body, at least because you would need a lot of Oyumaru sticks !!
It wouldn't be easy to apply to a full body and all its details because it hardens quite quickly once out of warm water...
bigger the quantity of oyumaru is harder it is to put it in form around or in the part to cast because you have to do it faster.
My best results were get with small parts or parts like spoilers as in this topic first example.


here are some of the 1/43 rims I casted with oyumaru:

[MPWR]

Originally Posted by SeanRally

Is it possible to cast a 1/24 car body with oyumaru, and what putty do you recomend to have in bolk, or would it not be practical, i have a few rare rally cars that i would like to cast, on a cheaper basis than resin casting, any help would be apriciated

Maybe not impossible, but completely impractical. Casting a whole body is a difficult operation. You're not likely to find a way of doing it cheap and easy that will give you usable results. Unless you really have professional level experience and equipment, it would probably be cheaper and more practical to buy the kits on Ebay than it would be to try to cast your own copies.

[rockinanko]

humm, so this method is good for smaller parts...

is there any japanese modelor around?

maybe there are some matching materials lying around, that go with this type for a full body casting!? Or there must be some limitations as to what this can do or can't do, so there must be some form of instruction as to how to maximise the use. it's all in japanese so we need a translater here...

i'm sticking onto this particular topic closely cos' i just can't seem to find smaller parts that i urgently needed anywhere in the world, be it cheap or expensive!!! i want some proper manual on how to use it effectively so i can start casting all my ferrari 250 parts & pieces. i'm sick of waiting & waiting!

marc

[jano11]

Originally Posted by MPWR

Maybe not impossible, but completely impractical. Casting a whole body is a difficult operation. You're not likely to find a way of doing it cheap and easy that will give you usable results. Unless you really have professional level experience and equipment, it would probably be cheaper and more practical to buy the kits on Ebay than it would be to try to cast your own copies.

Making the whole mold out of Oyumaru is not very practical, that's sure.
But what about making the exterior part of the mould out of silicon rubber and the interior part using Oyumaru?!

We are talking about reducing the price of a mold by some 40%.
Instead of 1 liter of silicon rubber you'll only need 0,6 liter, which means that you will pay around of 20€ for the mould.
A 1/24 scale body needs around 100 ml resin. (around 30€/liter for good quality PU resin).

This means that for 25€ + the price of the reusable Oyumaru (let's say 10€), one can cast a 1/24 resin body shell of a rare kit.

If you cast it twice you're already down to 20€/copy!

I've seen very few 1/24 resin bodies that you can get for as little as 35€.

[MPWR]

Originally Posted by jano11

Making the whole mold out of Oyumaru is not very practical, that's sure.
But what about making the exterior part of the mould out of silicon rubber and the interior part using Oyumaru?!

That may be much more realistic. You would of course need to figure out how to locate the interior part inside the exterior when pouring resin- but if you can make a usable exterior portion, you should be able to manage that as well.

[drunken monkey]

Originally Posted by MPWR

You would of course need to figure out how to locate the interior part inside the exterior when pouring resin

ahh... but what if you already have a negative of the interior of a body shell and just need a refined exterior half of the cast?

Has anyone tried the release agent spray normally used for silicone molds to help remove the oyumaru?

[rallymaster]

Originally Posted by jano11

This means that for 25€ + the price of the reusable Oyumaru (let's say 10€), one can cast a 1/24 resin body shell of a rare kit.

I would be pleased to see you showing us how to cast a 1/24 body with oyumaru...
especially for only 10 euros of oyumaru !