We at Perfect industries can offer any paint system as desired by the customer . Currently we are offering the following paint systems

POLYESTER,
PVDF,
Plastisol &
Polyamides

There are several paint systems on the market applicable to each type of product requirement.

Each and every system has a different curing CYCLE, which is specified by the paint manufacturer. It is most important that the data sheet supplied with the paint is studied very carefully prior to running on the coating line.

The most important information a coil coater should be looking for is peak metal temperature and paint dwell time.

Peak Metal Temperature

This is a required temperature that the substrate/metal has to reach to ensure the paint is cured. Typical polyester paints require peak metal temperature of between 200 degrees centigrade up to 240 degrees centigrade. These vary and are dependable on the individual suppliers. The curing cycle should also be of a gradual process for example, the first curing zone to be at lowest temperature rising to highest temperature being the last zone. As a rough guide the paint should reach its peak metal temperature about two thirds of the oven length. The peak metal temperature is then maintained for the rest of the ovens length.

Dwell time

This is the period of time that the paints peak metal time is maintained for the rest of the oven.

It is most important that this information is provided by the paint supplier. A dwell time can also vary from two seconds to as much as twelve seconds. This dwell time ensures that the paint is absolutely cured without question. For the coil coater should be in dispute with the supplier then there is a positive and concise way of proving this by way of using an instrument known in the trade as an oven trackers.

POLYESTER

This is typically used as a more economic paint system. This system is used where the atmoshphere is normal and severe corrosion resistance is not called for. This system finds it’s usage in general roofing, cladding & interiors mainly

PVDF

This is a more expensive version used to lengthen the life of the total system. It has better corrosion and UV resistance. The fading resistance is far more superior for this type of system. This system is recommended in severe atmospheric environment and mostly in marine environments. This system is used mainly in Exterior roofing and cladding and the composite material industry.

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