Advantages of Silicone Molding Rubber

Advantages of Silicone Molding Rubber

If you are in need of a rubber gasket and you cannot quite get the right replacement, you can choose to make a new one at home. People even make candles, soaps and other things from their homes. You will only need a few things that can be easily found at your local hardware store. While the whole project might be messy, it is achievable. Many people go for this silicone molding rubber material despite its difficult handling and messiness because it has many advantages. Silicone rubber is different from urethane molding materials as it is very versatile and can be used to reproduce nearly anything without damaging surfaces. Silicone rubber replicates without losing the intricacy of the original, since silicone rubbers capture the smallest of details, even down to fingerprints.

Advantages of Silicone Molding Rubber

Silicone rubber comes with several benefits, making it ideal for various molding jobs. These benefits include:

  • It withstands high and low temperatures better than organic rubber.
  • It has good thermal stability
  • It is flexible at low temperatures, and it stiffens up at higher temperature. This cannot be said for urethane molding materials.
  • Has excellent electrical insulation, there is no decline in insulation performance even if immersed in mater, which makes it a perfect insulating material.
  • Under ordinary pressure, its contact with steam causes minimal or no deterioration.
  • Customizable for various specific applications by altering the compound recipe by choosing the proper curing agent or/and post-curing the compound to improve its resistance to heat, hot water and flames.
  • It has low chemical reactivity.

Tips for Making Silicone Molding Rubber Items At Home

If you are planning a molding project at home, here are some things you should know if you are thinking of using silicone rubber.

It Is a Hard and Messy Job

Silicone molding rubber would be your best choice because of the easily availability of silicone rubber in different tubes at the local hardware store. However, you should be forewarned that working with silicone rubber and molding this material can be quite difficult and messy. Understanding this is important if you have decided to carry out this project.

First Step of Your Molding

The first step you should do is to get your actual mold made. Here, you will make use of kids oil based modeling clay. You simply press the item you want to reproduce with the silicone into the modeling clay, and then carefully remove it. This should be easy to do.

Sticking Might Be a Problem

On the downside, silicone does not stick to other materials, apart from itself. This means you might have an issue with sticking. If this happens, try to put whatever you are pressing into the clay in a freezer for some time.

The Actual process

After making your impression in the clay, give it a thin gloss spray paint coat. Once it is dry, give it a thin silicone spray coat. You can then squeeze silicone from the tube into the mold that you have made, being careful to avoid creating bubbles or voids.

Finally, allow the silicone enough time to cure thoroughly, before you pull it from the mold.

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