WB-DTM-Coating

Product information

A direct to metal coating is, as the name implies, a coating that can be applied directly to a metal surface: primer and top coat in one.

Click on Download TDS for the two formulation guides for Direct to Metal coatings.

It can be a challenge to formulate a good DTM coating and the right balance of anti-corrosion properties, adhesion and gloss.

The right corrosion inhibitor:
The right corrosion inhibitor is especially important for DTM coating. Because the coating is applied directly to the metal and the substrate is not always optimally pre-treated, a flash rust inhibitor can be crucial.

Substrate Adhesion:
Adhesion is crucial for a good anti-corrosion coating. First of all, the choice of binder is important, but there are more factors that come into play.

Substrate wetting can be a challenge, especially with waterborne DTMs. A good wetting agent or flow promoter would offer a ssolution here.

If necessary, adhesion promoters can be used.

Film formation:
Only if the coating forms a closed layer does it offer sufficient protection against corrosion. Coalescence of co-solvent has a major influence on the film formation and thus on the anti-corrosion properties and adhesion. Which co-solvents are suitable is highly dependent on the binder.

Additives:
Defoamers and dispersants can have a negative effect on the water permeability of the coating. Many dispersants (but also some defoamers) are inherently hydrophilic and can form weak spots in the film after drying. A product such as Solsperse W100 has been developed to be hydrophobic and has hardly any influence on the water permeability and therefore also on the corrosion resistance.

For more tips and explanations: click on download TDS and download the formulation guides.

Packaging quantities
Drum 200 KG
IBC 1000 KG

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