Type of Wax:

The following categories of pattern wax are fundamental to the investment casting procedure:

• Natural waxes, the most significant of which are, carnauba, beeswax, ceresin, and condelilla vegetable waxes. Normally Natural waxes are added to other waxes and resins to get the desired pattern wax properties.
• Mineral waxes, of which Mountain wax, extracted from brown coal, is the most significance. It is sometimes utilized unmodified, but contain an inherent strength disadvantage.
• Petroleum waxes, involving paraffin and microcrystalline waxes, are frequently used for investment patterns. These might be utilized in combination because their properties tend to be complementary.

Waxes might be deficient as patterns in definite applications. So, additives are utilized to develop their properties. Most of the pattern waxes, So, are blends of animal, synthetic, and vegetable waxes along various resin and plastic additives.