When you go to any department, hardware, or grocery store, you will most likely encounter things that are made out of coloured plastic. Usually, people pass these products and goods and don’t think twice about how the plastics are coloured.
Getting the proper colour for your created plastic products is utterly important for ensuring the product is desired and that it sells. When it comes to applying colour to moulded plastics, plastic manufacturers have three main options. These include masterbatches, cube blends and precoloured resin.
Masterbatches, also known as concentrates, are the most common method used to by plastic moulders because they are the most economical method to colour plastics and can be provided in small volumes. Masterbatches consist of concentrated pigments dispersed into a polymer carrier resin. During the moulding process the masterbatch is let down into natural resin as it is fed into the press at a predefined ratio to achieve the desired colour.
Cube blends are colour systems that feature a masterbatch dry blended with natural polymer that is ready to use. Unlike masterbatch, cube blends do not use presses or metering equipment which is why a certain degree of precision is required for this method to avoid colour variations through this process.
Precoloured resin is an easy to use option however it does not offer the same customisable abilities as masterbatch. It is for this reason that they are a popular choice for processors without experience handling custom colour matches. In this process, pigments are totally polymerized into a resin pack. Moulders often use recoloured resin it as it is supplied to them.
Plastic & Chemical Trading together with our international partners deliver world class plastic manufacturing solutions to South Africa. If you’re in the market for a plastic manufacturing solution that can stand the test of time, contact Plastic and Chemical trading today.