Sand Casting

The No-Bake casting technique creates moulds with excellent dimensional stability. The casting surface finish is also improved over other sand casting processes. No-Bake is one of the most efficient and advanced sand casting techniques currently available.

In the No-Bake Resin and sand casting process sand moulds are created using a wood, metal, or plastic pattern. Sand is mixed with a plastic binder in a high-speed mixer. This sand is deposited into box containing the pattern and all essential gating, risers and chills for pouring.

No-Bake Sand Moulding requires a chemical binder to hold the sand together. This type of system allows for the production of more complicated castings. Castings that are selected for this process usually are extremely large castings, require deep pockets, or limited draft situations.

Another important feature to No-Bake Sand Moulding is that there are no products of combustion incorporated in the material. Consequently, castings that require a high level of x-ray quality can be produced on a regular basis.

So, the chemical binders are used to create high strength moulds. When the temperature is brought to normal levels, the moulds turn rigid.