Basics of Mold Making
Learning the basics of mold making will come to your assistance in many different situations. In all such situations, you need to make sure that you are aware of all the steps that has to be followed clearly. Along with that understanding, you can follow the steps and make sure that you end up with positive returns at the end of the day.
One of the very first things that you must consider in here is to get your hands on the rubber molds. Using rubber molds is beneficial when compared to the usage of other mold types. That’s because you will not come across the need to use a releasing agent with the rubber mold. It will not be an easy thing for you to go ahead and apply a release agent in the intricate areas. Along with that, you will find it as a difficult task to remove it from the casting as well. Hence, people who use rubber molds will be able to get the job done with ease.
After picking rubber mold, you should go ahead and prepare the structure, along with mold box. You can do this with the help of plywood. The plywood box must be made in appropriate dimensions. Then you will need to think about sealing it along with the assistance of a petroleum jelly. It is recommended for you to taper the interiors of your mold box. Then you will find extra assistance while you are removing the mold. You just need to turn your mold box upside down and you can get the work done.
As the next step, you should mix, measure and pour the silicone mold rubber. This should be done based on the dimensions of the mold box. In fact, you can determine the amount of silicone rubber that you will need to use depending on the dimensions of your mold box. It is better if you can use a separate turbo mixer for getting the mixing job done as well. This can help you to end up with the most efficient results at the end of the day. You will need to keep on mixing rubber until it produces a uniform color. It is important for you to refrain from hitting the sides of mixing pail while you are going forward with the mixing process. That’s because it can add air into your mixture and you will not be able to end up with the best quality results at the end of the day.
Now you have done all the work of mold making and you just need to go ahead with demold. Before you do the demolding process, you will need to figure out the locations of the walls of your mold box and then block out the areas that are marked with the help of a pen. Then you will be able to make sure that you can use the mold box at a later stage for your casting work as well.