The patented coolac®-overspray recovery can also be applied for low quantities of paint, it is both efficient and saves paint. It is suited for water-based, incombustible coating substances and allows for a homogeneous recovery of overspray during spray coating. With coolac®, material cost can be reduced by 30 to 40 per cent and operating expenses by up to 70 per cent. 

Process

The overspray from water-based paints condenses on the coolac^®-system wall arranged behind the workpiece. The wall is cooled down to a temperature below dewpoint. The condensation film forming on the surface prevents the paint from drying. Once a specific thickness has been reached, the overspray runs down the coolac^®-system wall and flows directly into the paint collection containers. A change of paint requires that the coolac^®-system wall is stripped off.

For optimum results, this way of recovery requires a relative humidity of the surrounding air of 50 to 60 per cent.

The coolac^®-process can be applied for

• the use of aqueous paint substances
• applications without frequent changes of paint
• spray-coating of wooden or metal parts
• the refitting of an existing manual spraying station or automatic booth

Overspray separation using the patented coolac^®-system. The quickest changes of paint are possible by means of a 180°-turn of the Tandem-coolac^® unit. Tandem-coolac^® allows for a homogeneous recovery with separate paint collection containers.

This system is generally used in automatic spraying boothes.