10-GUIDELINES FOR USING VOC-FREE COLORANTS 10-1
COROB™ TATOCOLOR
10 GUIDELINES FOR USING VOC-FREE COLORANTS
10.1 Introduction
In compliance with environmental directives from the European Union and various Eco labels,
European paint manufacturers are focusing on reducing the solvent levels in their decorative
product ranges. The overall target is to develop environmentally friendly paint products without
any solvents or volatile organic compounds (VOC). As a part of this development, also the
colorants used for colouring these paint products are more commonly VOC-free.
This information chapter is meant as a practical guide for a flawless operation of COROB™ tinting
machines with VOC-free colorants.
These guidelines are based on information COROB believes is reliable. They are offered in
good faith, but without guarantee, as conditions and methods of use of COROB™ dispensers are
beyond COROB's control. It is recommended that the prospective user determine the suitability of
the materials and suggestions supplied before adopting them on a commercial scale.
Should you have any further questions, please do not hesitate to contact your local COROB
representative directly.
10.2 Using VOC-free colorants
The choice for a specific type of dispenser and canister size should be based mainly on a realistic
estimate of the colorant consumption. For usage with solvent-free colorants special attention
should be given to the closing of the canisters and the overall cleaning of the machine. Hereunder
you find some recommendations for maintaining the dispenser.
10.2.1 Operating conditions
If the machine is sold with colorants inside, store the machine at room temperature, and
absolutely not in direct sunlight or at temperatures below 0 degrees Celsius.
For a flawless operation, the machine should be used in room temperature, not be placed near
heat sources or in direct sunlight. Also humidity sources should be avoided.
10.2.2 Filling and refilling
Homogenise the colorant according to the instructions provided by the colorant supplier before
filling it into the dispenser.
Clean the canister lid before and after filling.
Pour the colorant into the canister.
Maintain the same level of colorant inside the canister, to avoid the colorant drying on the sides of
the canister.
10.2.3 Daily cleaning
Clean each part of the machine that is covered with colorant on a daily basis, especially those
parts near the canister lids and the nozzles.
Pay particular attention to the cleaning of the machine before refilling.
10.2.4 Humidifying cap / Nozzle washer
Clean the humidifying cap or nozzle washer of the machine on a daily basis.
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