10
votes
Accepted
Can I use hot glue as resin by melting them in a pan
It won't work.
You can melt hot glue in a pan, but it tends to turn yellow and eventually brown if it gets too hot. whether the mold survives the pouring depends on the material.
The real problem is ...
Elmy♦
- 13.8k
7
votes
How do I pour *just* the right amount of plaster into these molds?
What I would do:
Drill holes in the top plexiglass so that there is one hole per part in your mold.
Fill each mold with plaster until it is almost full but does not overflow.
Place the top plexiglass ...
- 71
6
votes
Accepted
Can I cast a glow in the dark flower in resin?
A few comments about the problem as a whole, before I address your specific question...
You are attempting to encapsulate something in a clear resin shell. That shell lacks any distinct shape, being ...
- 3,235
5
votes
Accepted
Replicating a silicone object
I agree with #torjek that a separator (mold-release) spray or liquid would make it possible to caste a silicone object with silicone as the mold making material. The benefit of getting good at this ...
- 3,235
5
votes
Making a mold off of bone
How about making the final project mask directly from papier-mache without all the casting:
Cover the skull in clingfilm to protect it;
Papier-mache parts of it (if you try to do it in one go you ...
- 51
5
votes
Accepted
Can I mold plastic (HDPE or LDPE) in silicone?
Sort of, within limits . HDPE and LDPE melt at temperatures that won't damage silicone designed for that temperature (some silicones that are designed for lower temperature ranges can degrade from ...
- 11.5k
5
votes
How did they make spiral decorations and pearls on old frames?
It is true that a lot of work was hand carved, but many elements are made of what is called compo, the exact nature of which varies but is usually a resin, a whitening agent and glue. This material ...
- 151
5
votes
How do I pour *just* the right amount of plaster into these molds?
The first answer that comes to mind requires a bit of experimenting and also requires that your mixture be consistent in terms of water content.
You'll need a gram scale with the capacity to hold the ...
- 7,679
4
votes
Replicating a silicone object
If you're using a two-part pourable silicone, you can make a mold of the item with a reusable gelatin-glycerin mold material you can make at home. There are a lot of variations on the formula ...
- 11.5k
4
votes
Accepted
What material can be used to create a mold for pouring any molten metal without problems?
For use with the widest range of metals, a properly prepared ceramic mold is your best bet. It can tolerate high temperatures and capture fine details well. However, these are commonly single-use ...
- 4,074
4
votes
Creating food-safe silicone beads
You can use food grade silicon for casting as well as for making molds. What you need to look for is chocolate casting silicon. They are pretty expensive and there are plenty of manufacturers, but you ...
- 2,822
4
votes
Accepted
Does Cyanoacrylate glue inhibit Mold Star silicone?
cyanoacrylate itself will not, however many brands of cyanoacrylate have additives which can.
Sulfur is your problem. P-silicon and sulfur do not mix.
I work primarily with fossils and use completely ...
- 281
4
votes
Is it possible to use common household ingredients to create resin?
According to Wikipedia, resin is:
In polymer chemistry and materials science, resin is a solid or highly
viscous substance of plant or synthetic origin that is typically
convertible into ...
- 7,679
4
votes
What materials can I use to make a cast for melting lead?
Most household pans work fine for melting lead. Make sure they are thick enough, don't have plastic parts, and don't have Teflon or similar coatings (Teflon and lead share their melting points, ...
- 11.5k
4
votes
Accepted
Is gold casting under pressure or not?
From a purely physical point of view, being "under pressure" means having a force applied to you. Our atmosphere is constantly applying a force on us from all sides, so objectively speaking ...
Elmy♦
- 13.8k
3
votes
Food-Safe Plaster-Like Material
Food safe, moldable materials are rare in general. The closest thing that comes to my mind is a kind of "organic plastic" made from milk, but it looked hard to work with and I don't know how ...
Elmy♦
- 13.8k
3
votes
From what material/s I need to create a mold so that I can pour in it safely any kind of molten plastic?
Injection molding can in fact be done at home. But judging from the OP this method would be far and above beyond the scope of his current knowledge on these types of things.
The easiest way to cast ...
- 31
3
votes
Replicating a silicone object
You can use a silicone to make a mold in this case too. I've done it in the past. You just have to spray the original silicone piece with the separation spray before you pour the silicone into it like ...
- 31
3
votes
How did they make spiral decorations and pearls on old frames?
In many cases decorative elements such as spirals and pearls were hand-carved by skilled craftsmen.
The ornate spirals and pearls on gilded frames were often hand-carved using chisels and gouges.
...
- 145
3
votes
Is gold casting under pressure or not?
As @Elmy correctly suggested, I asked them directly. This is their response.
Thanks for the question.
With our vacuum casting machines, the melting and casting process are
done within one large ...
- 247
2
votes
How to cast silicone beads?
I agree with the basic idea of what fred-dot-u mentioned,
but I'd tweak the method a bit.
Put your beads on a wire.
Cut apart an old coat-hanger with snips and use that.
This would give you a ...
- 171
2
votes
Accepted
How to cast silicone beads?
If your objective is to create a silicone product, take a different viewpoint of your research thus far. Silicone molds work because silicone sticks to almost nothing other than silicone. If you ...
- 7,679
2
votes
How to make a silicone mold of a fiberglass object?
Would a two step process work? Make the first mold off of the fiberglass with latex rubber (or another molding rubber that is not anti-fiberglass) then make a plaster positive from that. So now you ...
- 3,974
2
votes
What material can be used to create a mold for pouring any molten metal without problems?
Traditionally cast iron was cast in sand, link to a Wikipedia page about casting in sand.
And I have also seen other metals cast in sand, like pewter and silver.
And as indicated in the comments on ...
- 2,946
2
votes
Accepted
Making plastic mold from plastic sheet
Depending on the material you will be casting in the mold, you may find that you can make use of a product called Hand Moldable Plastic. This product is shipped as small beads which are heated in ...
- 7,679
2
votes
Can I use hot glue as resin by melting them in a pan
Casting resins have very different characteristics, like:
virtually no shrinkage
no flowing once cured
hardness
stable color
crystal clarity
some don't put out much heat during cure, so they can be ...
- 11.5k
2
votes
Is it possible to use common household ingredients to create resin?
People have suggested many kinds of household materials that can be used for casting. If you really want a resin that looks, feels, and acts like plastic, there are a few options.
PVA glue (common ...
- 11.5k
2
votes
How do I remove modelling clay from my parts and silicone mold?
Sculpey is not good for this, it is also expensive.
first you want a clay that stays soft, a simple bulk oil-based non-hardening clay tends to work. I prefer softness #4 but there is a lot of ...
- 281
2
votes
Concrete for mold making
Don't use quick-crete mix your own, for one thing you don't want gravel in detailed or smooth are casting, just sand, the finer the better. I have had a lot of success using a mix of sand and marble ...
- 281
2
votes
Accepted
Keeping thermoplastic from sticking to models
I've never used the stuff, but it has a reputation for sticking to everything. Have you tried a release agent? I'll offer some speculation on what should probably work (the first things I would try ...
- 11.5k
Only top scored, non community-wiki answers of a minimum length are eligible