Vacuum casting is the ideal technique for small, high-quality series. For vacuum casting we use silicone moulds so that mould investment is limited. The maximum size that L-stin offers through vacuum casting, is the size of a car bumper.
How does vacuum casting work?
We make a quality master model through 3D printing.
We place this master model, provided with runners and sprue, in formwork. We fill the formwork with silicone.
After the silicone has cured, we cut open the silicone mould and remove the master model.
We place the silicone mould in a vacuum cabinet. Under full vacuum we fill the mould with a PUR mixture.
We place the mould in an oven so that the product can fully harden.
When it has cooled down, we open the mould and remove the product. We cut off the runners and the sprue. Depending on the required degree of completion we sand, prime and lacquer the product.