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7 votes
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How do you open Castin’ Craft resin cans?

Prying with a narrow screwdriver is a good start. It appears in the photo that you have a bit of a start at the near edge of the top. This particular seal is a throw-away and you can indeed stab it. ...
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7 votes
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Eliminating or mending breakage when working with jeweler's wax

As I recall there are grades of microcrystalline wax available in different hardnesses and melting temperatures, so do try others. I have always used a moldable base to support detailed work. Pitch ...
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6 votes
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Does boat polyester resin works well for insect/flower encapsulating?

Disclaimer: I have no first-hand experience with industrial resins (like boat resin), but I used craft resin (like crystal epoxy resin) several times. There are 2 aspects to keep in mind when ...
  • 9,515
6 votes
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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 ...
  • 9,515
6 votes

Cheapest casting material for a single use of wet-forming leather?

Based on your clarifications in the comments, if the idea is to quickly create the mold from clay, the casting material would need to be something workable at room temperature. You could use cement, ...
  • 10.4k
5 votes
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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 ...
  • 3,195
5 votes

Will two-part epoxy casting resin melt Lego?

Lego is ABS, which can have a range of melting points melts up to 200°C*. We should consider the lower end of the range just in case, which is often quoted as 105°C. Your resin shouldn't get that hot ...
  • 5,228
5 votes
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Is water resistant PVA (type 3) a good option for sealing indoor kitchen concrete countertop with a sink?

The short answer is no. Countertops near a sink often have water puddles sitting on them for awhile, and a sink is submerged in water. You really need a surface that is at least waterproof, not just ...
  • 10.4k
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, ...
  • 9,199
4 votes
Accepted

Can two-part epoxy casting resin be diluted?

The miniature sealed inside implies you want clear resin so you can see the miniature (not a secret miniature that someone would take your word is in there). For this requirement, there really isn't ...
  • 10.4k
4 votes
Accepted

What is a castable gold-coloured metal that is less expensive than gold?

There is no other easily available alloy than Copper based ones that are gold colored. Brass is the most readily available that will have a gold color. There is also a very wide variety of bronzes ...
  • 246
4 votes

What is a castable gold-coloured metal that is less expensive than gold?

Maybe you could use epoxy resin instead of metal. It's not exactly cheap and you'd have to do some research as to which resin is best suited for your purpose (or suited at all), but there are tons of ...
  • 9,515
4 votes

How to make chewable silicone beads?

I've used a food grade silicone in the past that has the consistency of pudding. It is rather soft and very weak and would not hold up in the example you provide. I have used a more expensive silicone,...
  • 6,588
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 ...
  • 10.4k
4 votes

Eliminating or mending breakage when working with jeweler's wax

Is this to make a pattern for investment casting? If so, any wax or plastic (with no filler like Fiberglass) can be used. When I worked in the industry they made patterns of paraffin wax and used ...
  • 1,113
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,...
  • 10.4k
4 votes

Cheapest casting material for a single use of wet-forming leather?

One material to consider, in quite good supply, with substantial strength and fast working time is HDPE. It is recycling symbol 2 and is used to make various bottles and other products. Durability is ...
  • 6,588
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 to cast beads using DIY casein plastic?

I actually did this six months ago, and the shape that I cast is still solid, virtually indestructible and mold-free, so I am speaking from experience here. The instructions I wrote down here for ...
3 votes
Accepted

Use laser toner for embossing powder?

You should not handle toner powder at all without a high quality filter mask and potentially safety glasses. Loose toner is a health risk for the respiratory system due to it's particle size. It's not ...
  • 9,515
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, ...
  • 10.4k
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&...
  • 10.4k
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 ...
  • 6,588
3 votes

What else can be used as flux instead of borax for silver casting?

I would suggest charcoal and no flux. Keep molten time to a minimum. Charcoal is used on molten lead for long periods to reduce oxidation. For many copper alloys , hydrogen absorption is a problem ; ...
  • 1,113
3 votes

Casting foam inlay for briefcases

Casting foam inlays isn't all that different from creating a silicone mold, except the mold is mostly pressure-sealed; the foam creates a lot of pressure, so the mold needs to be strong enough to ...
  • 10.4k
3 votes

Is there a good low toxicity / food safety clear casting material?

There are other resins (mostly 2 part epoxy resins) that can be food safe. Can be means that : It has to say "food safe" on the packaging, and You have to measure the components and mix ...
  • 9,515
3 votes

Is there a good low toxicity / food safety clear casting material?

You can find many epoxies and some other resins that are certified food safe. Casting resins are often used for items that will be in contact with the body or food. The US and EU (and I assume other ...
  • 10.4k
3 votes
Accepted

How to fill gaps in spherical resin molding

Use a clear two part epoxy resin to fill the gouges. You can get one with a short drying time (5 minute epoxy) at most hardware stores or even the dollar store. Ensure if its a two part mold, not ...
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 ...
  • 10.4k
3 votes

High temp castable refractory cement ok for molten silver?

Silver melting at 1762 F plus some superheat; The product should tolerate the temperature if the info is correct. But a crucible also needs some strength, do you want to guess if the material would be ...
  • 1,113

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