Making Concrete Molds

When making concrete molds, the material you should choose depends largely on what sort of creation you have in mind and also on its size.

Here are the most popular materials used to make molds for concrete.

Latex molds have become immensely popular simply because latex is so incredibly easy to use.

There's no mixing involved, and there's no special preparation involved.

In fact, the liquid molding latex that you buy is ready to use immediately, and this is why it's the option of choice for so many people.

However, if you're an impatient person, then it may not be the ideal choice for you, considering that it generally takes a relatively long time to set.

In other words, if you're using liquid latex for your mold making, then you'll need to make the latex mold a day or two before you intend on using it.

Something else which is worthwhile noting is that latex molds have a tendency to shrink.

Even though the amount of shrinkage is negligible, it may pose to be a problem depending on your personal requirements and what you intend using the mold for. After latex, polysulfide rubber is the second most popular material for making molds.

Unlike latex, polysulfide rubber sometimes comes in two parts which have to be mixed; but even so, it remains extremely popular largely because of its outstanding durability.

Over and above being so durable, the material is also reasonably stretchable, which of course makes it an ideal material for making cement molds.

In fact, if it wasn't for the bad smell, I wouldn't be surprised if more people chose to use polysulfide rubber rather than latex.

Let's just say that the smell is bad enough to make you want to hold your breath; but then again, I wouldn't really say it's unbearable (like asphalt is, yuck). For heavy-grade molds, you should use timber, or even steel to make sturdy molds.

To recap, molding latex and polysulfide rubber are the most popular materials being used for making molds for concrete nowadays.

Not only are they both very versatile, they're also very affordable.

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