8
votes
Accepted
Does cutting/trimming food safe silicone make it unsafe?
It should still be food safe in the way you're probably thinking, but let me expand on a few ramifications.
The silicone, itself
If the manufacturer has fully complied with the requirements for ...
- 11.5k
7
votes
Accepted
Information regarding skin friendly wax candle additives
As far as I'm aware for BDSM purposes you want to get the melting point low enough to not burn the skin, but high enough for the recipient to have intense sensations.
Paraffin and soy wax are common ...
Elmy♦
- 12.6k
6
votes
Accepted
Some guidelines to create a silicone mold of this flower pot object
Alternative to a silicone mold
You could just as well print the pot twice in different sizes and use those prints as a mold. You'll probably need to print both sizes at the same time because you ...
Elmy♦
- 12.6k
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
4
votes
Some guidelines to create a silicone mold of this flower pot object
I won't duplicate all the good information in Elmy's answer; this will be supplementary ideas.
If concrete is the material you want to cast, here are some considerations.
Just to clarify terminology,...
- 11.5k
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 ...
- 2,812
4
votes
Simple as possible DIY box for making silicone molds
According to AeroMarine Products' page on moldmaking, (emphasis from source)
Generally, silicone RTV mold making rubber does not stick to anything, and nothing will stick to it. The exception is that ...
- 3,902
3
votes
Can I use a hair dryer to remove bubbles from casting resin?
A hair dryer is actually a bad way to deal with bubbles. It blows too much air, too little heat, and can blow dust onto the resin.
Start by minimizing bubbles
There are many techniques to minimize ...
- 11.5k
3
votes
Can a home made silicone mould that's still tacky after 24 hours be salvaged, or is it a complete loss?
If it's still tacky after 24 hours, that's not a good sign. If it feels solid, you can try cleaning it to see what happens.
At least some types of uncured silicone mix well with limonene, a solvent ...
- 11.5k
3
votes
How best to thin Silicone for Roto Casting
There are various common solvents, like mineral spirits, that will thin silicone. However, the solvent becomes part of the volume. Once the silicone cures, the solvent will leach out and evaporate, ...
- 11.5k
3
votes
Accepted
Easy shaping material to use as blank/base/reference for silicone casting/molding
There are still a couple of ambiguities in the description, so I'll try to cover a few variations on what you've described, including a possible alternate approach.
Resin casting as the "finished&...
- 11.5k
3
votes
Easy shaping material to use as blank/base/reference for silicone casting/molding
The terminology varies from "industry" to "industry" but the concepts are the same. I watched years ago a video teaching creation of molds from fiberglass cloth. The original was ...
- 7,231
3
votes
Accepted
Is there a way to bond silicone to nylon?
I assume you use a molding silicone or a specialized prosthetic silicone for film and theater masks. The chemical compositions of those kinds of silicone are designed to not stick to anything.
...
Elmy♦
- 12.6k
2
votes
Accepted
How to properly glue wood to a silicone mold to later fill with another material?
Silicone works well as a mold material because virtually nothing adheres to silicone other than silicone.
CA glue may not be a good choice, as it certainly will not adhere, but also may damage the ...
- 7,231
2
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Can a home made silicone mould that's still tacky after 24 hours be salvaged, or is it a complete loss?
You should wash the mold in hot water to vulcanize it a bit and then dry it with a heat gun or hair dryer on the inside, very carefully. After that, if you have a tube of Silpoxy for mold repairs, ...
- 21
1
vote
What effect will it have on silicone mold if you leave it to set and the temperature is too high?
Note: this answer responded to a different wording of the question, so the focus is different, but it still responds to the question in its current form.
The answer is, "It depends." This ...
- 11.5k
1
vote
Simple as possible DIY box for making silicone molds
Since you are already skilled at 3d printing, have you considered 3d printing a custom shaped box slightly larger than each specific base requires. Doing this would minimize the amount of rubber you ...
- 3,235
1
vote
Is this release agent compatible with these Smooth-On silicones?
The question describes using 2350 to keep the Dragon Skin from sticking to the Smooth-On 15 mold, but the problem seems to be described as uncured Smooth-On 15 between the mold and the original. It ...
- 11.5k
1
vote
Is there a way to bond silicone to nylon?
I would look into making holes into the silicone face and feeding the line through.
If you plan on using monofilament line a tiny hole and the line cut at an angle will already work, the line working ...
- 2,926
1
vote
How to properly glue wood to a silicone mold to later fill with another material?
Get a set of magnets (I think 4 but more may be needed) and drill holes in the wood on the side it sits against the mold and insert (glue in) the magnets.
When you get ready to poor your concrete you ...
- 2,926
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