Making press moulds from "Blue Stuff/Oyumaru" 

Just wanted to point this out and agree with this post. You can find clear Oyumaru on Amazon at the moment for about £4.50 and Superfine Milliput for about £4.50 as well. £9 in total vs the much more expensive Greenstuff World.

Cheers mate, I love your bases! Was great to see your stand at Ardacon

Thanks buddy, they really are a great little tool

Javier Mallo I used bodies from the V&V miniatures Vikings and Saxons, then heads from the gripping beast Vikings.

Sorry for not replying! I lost track of the comments. In short yes - I've used it to copy parts (both resin and plastic)

John Doe that sounds about right. I use a 50/50 mix, but even if you use more yellow than blue it will set hard eventually. I would suggest leaving it a little longer. Greenstuff is never as hard as the plastic anyway, so may retain some flexibility

John Doe that sounds about right. I use a 50/50 mix, but even if you use more yellow than blue it will set hard eventually. I would suggest leaving it a little longer. Greenstuff is never as hard as the plastic anyway, so may retain some flexibility

Keith Tam I did have that problem quite a bit. At first it was because I was using too much greenstuff, so it was being pushed into the gaps when I applied pressure. The first solution is to use less greenstuff, but if you use too little you may end up with gaps. Any major areas of flash can be trimmed with a hobby knife. It's a tricky balance, I found moulding flat objects like shields is much much easier

The seam line is quite thick, is it suppose to be like that? I mean, even after some good trimming, the mold line is thick, so for a small metal figurine recast, it kinda a major issue......

Keith Tam hmmm I've never tried to do an entire figurine. I think it could be to do with the pressure you're applying to the mould, the more pressure you apply the more will squeeze out of the edges. I did have quite a few casts that I had to throw away

I don't know if I'm honest. I know that milliput is not green, it's more of a cream colour. You might be able to find coloured putty that's like greenstuff, I'd try Google

To make it ready to use do you mean? You simply put the solid blue stuff in hot water and within a few moments it's ready to use. No need to use other chemicals or anything else

I was going to melt some plastic I had and pour it in the mold. The plastic would melt from those chemicals making it more of a liquid. That's what I meant, sorry. Edit: The mold would be the blue stuff. Not the plastic I was referring to.

Oh I get you now, yeah I would think that if you're heating the plastic it would affect the mould. It's not something I've ever tried to be honest. I think it's more intended for use with greenstuff/putty

Paintbrush Pirate Thanks, I will be sure to test it out myself! Maybe having the melted plastic not entirely goop in case

Less than a minute. Once it comes out of the hot water, or the water starts to cool it will start to set

@@PaintbrushPirate yok so you have say 15 seconds before it starts to harden but at room temperature how long does the blue stuff take to set after you press it up against a part of say a base or a mini ?

@@davedogge2280 I'd say for it to harden completely so that you can separate the mold and fill it with greenstuff I'd say no more than 10 minutes. You can speed it up by placing it in cold water. It all works based on the temperature of the blue stuff itself, once it's cooled (to room temperature) it's solid. I hope that helps.

@@PaintbrushPirate cheers

I didn't play it, it was a free sound file from the internet. You're right, they're Spanish, some of their stuff is amazing. I'm trying to resist the temptation to buy more