Mixing metallic powders with resin?

Birdie

Master Member
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Has anone had any success with this?

I tried casting a part today with aluminium powder, and it came out a very dull grey. I used used a mix of around 1:1

Do I need to use more powder?

Any pics of successfully cast resin props with metal powders?
 
i always thought you had to steel wool it to get the metallic finish, thats what ive always had to do.
 
Any pics of successfully cast resin props with metal powders?

Matsuo
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Doesn't make any difference when you buff it, still stays flat grey :lol

I think I used the wrong technique, I just mixed the powder into the resin then poured the mould.

From watching the video Zorg linked to, it seems I should have dusted the mould with the powder before pouring.

The powder is from Tomps, which is a popular online supplier in the UK.

By choice, I would use only Smooth-on products, but they have become ridiculously expensive over here, even Tiranti's are cheaper.
 
The dusting of the mould helps with the appearance, adding it to the resin helps with the metal feel by adding weight. At least that's my understanding.
 
I've actually been wonderign about this for a little whiel as well. Can you use any old resin, or do you have to buy special stuff?
 
to my knowledge you can use any resin. but I'm far from an expert. Anyone else want to check in?
 
Doesn't make any difference when you buff it, still stays flat grey :lol

I think I used the wrong technique, I just mixed the powder into the resin then poured the mould.

From watching the video Zorg linked to, it seems I should have dusted the mould with the powder before pouring.

The powder is from Tomps, which is a popular online supplier in the UK.

By choice, I would use only Smooth-on products, but they have become ridiculously expensive over here, even Tiranti's are cheaper.


i always dust the mold first, the ratio that you put into the resin is very important, perhaps you didnt put enough in? if you put too much in it weakens the resin

what resin do did you use and whats its normal colour when its cured?

heres my first attempt, it came out matt chocolate brown. bronze and a little brass mixed together. i used steel wool to bring it up.
hand3.jpg
 
I've actually been wonderign about this for a little whiel as well. Can you use any old resin, or do you have to buy special stuff?


all ive used is normal 2 part pu resin, seems to work quite well.

-z
 
it also has alot to do with the mesh of the powder. Most you will buy are around 325/425 mesh. Its sometimes enough to dust the mold with it then add some to the material and do a slush of it then back fill the mold with plain material (no powder in the mix) to save product.

I use a much finer powder, 1200 mesh or more, to completly cover the mold and get a polished finish since the metal brushed into the mold is so fine. Here is a little sample I did very quickly of powders brushed into a mold. All are various metal powders with plain milky clear plastic backing it (no powder in the mix, just brushed into the mold).
1zczvxi.jpg
 
Once again Rob astounds me with his skill. I just want to make some really small shiny bits for a blaster. I was thinking of just using some fiberglass resin cuz I've got so much of it and some metal powder from a friend's workshop. Would that be effective? And what is meant by dusting the mold? Do you just put some powder in and spread it out with a brush, or do you have to use water or something to make it stick?
 
Once again Rob astounds me with his skill. I just want to make some really small shiny bits for a blaster. I was thinking of just using some fiberglass resin cuz I've got so much of it and some metal powder from a friend's workshop. Would that be effective? And what is meant by dusting the mold? Do you just put some powder in and spread it out with a brush, or do you have to use water or something to make it stick?

the powder is very fine, like baby powder.


watch the video i linked to. this will answer your questions

z
 
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