Die casting vs dip moulding

Die-casting vs dip moulding - what's the difference?

Die-casting differs from dip moulding, which is a process in which a mould is dipped into liquid vinyl or plastisol. The vinyl or plastisol is cured and then blown from the mould. The main applications for dip moulding include gloves, balloons, condoms and bellows. Plastisol is the most widely used material for dip moulding because it is easy and affordable to use. Other materials commonly used in dip moulding include latex and polyurethane.

As a manufacturing process, dip moulding is similar to traditional candle-making in its methods. Heated metal moulds are dipped in a tank of liquid material that is either heated or left at an ambient temperature. The moulds are then extracted and cured before the part is then stripped.

“Cores are most commonly used in sand casting techniques”

Cores and cavities explained

Core moulding involves the use of a core that can be removed to leave a space in the component. Cores are used in casting and moulding processes to produce internal cavities in a finished part. The core is normally a disposable item that is destroyed to get it out of the piece. Cores are most commonly used in sand casting techniques, but they are also sometimes used in injection moulding.

One popular example of the use of cores is in the automotive industry, in the casting of engine blocks. Cavity moulding is part of the injection moulding process, known as the injection moulding cycle. This cycle begins when the mould closes, followed by the injection of the plastic into the mould cavity.