Principle of coating

coating process

With a fully staffed R&D department of chemists and engineers, CMC offers an unprecedented level of customization. Tailoring chemistries is not a service offered by most coaters, but at CMC we continually leverage our research arm to meet unique challenges. Whether refining an existing coating to more specifically meet your needs, or developing a specialized coating for your needs. If it is within the realm of possibility, we will work with you to design it.

The major part of the coated film substrates or fabrics are coated with the Meyer-Bar-Technology.

The principle is easy to describe: the film is drawn through an adhesive dip. The film carries a specific quantity to an assembly that is a combination of a rotating spindle and a fixed coating doctor knife.

The gap between the transportation spindle and the doctor knife minus the thickness of the coated material is the "wet coating quantity" of the adhesive. After evaporating the solvent in the adhesive solution the final "dry thickness" is defined by the solid content of the adhesive solution. This is a stable factor between thickness of the wet coating and the solid content.

By using this method an extreme wide range of coating thickness can be achieved.

The alternative method uses a wire bar. In principle this kind of bar consists of a metal rode with a wire wound around. Thickness of the wire and distance of the wires define the quantity of "wet coating quantity".

If necessary it is also possible to strip coat materials (strips without and with coating in various width depending on your demands).

If you do not find a product of the shell and look for a tailored solution: Send us an inquiry with your technical details.

The prinzip of these coating technologies is shown here:

wire wound metal rod

Alternative method with a wire-wound metal rod. By the thickness of the wire and the distance wire-to-wire the coated weight per sqm can be definded.

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