Thursday, June 27, 2013

How to make molds from silicone rubber

Silicone rubber

Silicone rubber is a two component, synthetic rubber and flexible. Silicone elastomer can be placed at room temperature into a solid elastomer, used for molds.Silicone this rubber heat resistant, durable and free of allergens or chemicals. Silicone rubber has different processing characteristics. This type of silicon commonly sold with 2 components, silicon and hardener.Nowadays injection molding of liquid silicone rubber is becoming increasingly important. One reason for this is the increased performance requirements. In addition, more and more manufacturers make the components of silicone rubber due to see the benefits of the high level of automation in productivity.

Variety of ways you can make silicone molds, why I suggest using silicon?

  1. Silicon has many advantages for making molds than other materials (molds with gypsum materials,    fiber,       cement, etc.)
  2. Silicon is able to record more detail than we will print master
  3. Silicon has a very high elastic, allowing the mold is not easily damaged, resistant to heat

Although the cost of making the mold of silicon material is relatively more expensive, but the function and its superiority is unquestioned.Therefore, the author would like to share how to make silicon mold using this type of material. Lessons or molding mold making is very important for people who will make objects from fiberglass ( car bumpers, car body, boat, speed boat, tables, chairs, statues, helmets, steering wheel, accessories cars / motorcycles, water tank, souvenir key chains, picture frames, replica food, etc.), for the manufacture of items for souvenirs gyps or gypsum gypsum, gold making, soap, candles, etc.. I think making the mold is a basic lesson before you make a creation. Indeed, we can order in other people but far very effective if we could make your own. Lesson how to make these prints will learn a variety of mold making from fiberglass itself, of gypsum, and silicon rubber. 

Tools and materials needed

- Scissors / cutter- Silicon rubber 
- Teaspoon as a stirrer, a container to pour the silicon rubber 
- Model / items to be printed 
- Glue, or can also use night 
- Carton (as a wall)- Glass / flat plane (for attaching the model)

Mold making steps:

Step 1

Prepare tools and materials above. Glue (glue models with glass / flat surface), try serekat possible, lest there is a gap between the models with glass. This is to avoid the possibility of silicon seeping down models.

Step 2

Put a wall in the model, using cardboard or night (depending on the model to be higher than prints made. Provide the distance between the model with the wall, - / + 1 cm, this will be a later model of the wall thickness. Ensure that there are no gaps or holes slightest so that the resulting mold more perfect.

Step 3

Pour into a container of silicon that has been provided (to taste) little by little better. Give sufficient catalyst - / + 5%, then stir until blended.

Step 4

Brush silicon that has been mixed with a catalyst on the model (thin layer), this is to avoid air bubbles trapped in the silicon that affects the detail rather than the mold.

Step 5

Once dry, Repeat step 4 with silicon until evenly to cover the model. Model actually embedded in the silicon, and do not be too thick, as this will have a say the mold flexibility and also waste.

Step 6

After the silicon mold really dry, remove silicon from the model (slowly) not to tear silicon, although the chances are very small tear. Silicon drought levels vary, it depends somewhat catalyst which we pour and serial number than the silicon used. Because there other stores silicon products are sold with the brand and different series. Silicone molding ready to use!To ask a question can send email to or in the comments field, may be helpful, warm greetings from your friend sinaryou

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