Preparation & Paint Correction2 min read

Dyne Pens and Bonding: A Screening Result Is Not an Adhesion Guarantee

A surface-wetting screening result can help organize preparation checks, but it cannot guarantee that a particular coating will adhere in service. The proposed coating system still needs its own compatibility and performance assessment.

Updated · NANOLAB Knowledge

The key distinction

Treat the screening method as one piece of evidence about the tested surface at that moment. The test liquid, technique, surface condition and interpretation influence what can be concluded. A numerical screening value should not silently become a universal passing threshold for all substrates, coatings and exposure conditions.

Practical checks

  1. Confirm that the screening method is appropriate for the substrate and the intended decision.
  2. Record the exact method and acceptance basis supplied by the responsible technical party.
  3. Evaluate the actual coating system using the agreed trial process before making a broader claim.

Example

Illustrative example: a prepared panel meets a workshop's screening criterion, but the proposed coating has never been approved for its existing finish. The screening result does not resolve that missing compatibility evidence. The next step remains a documented system assessment, not automatic release for application.

Scope and limits

Do not apply test inks to customer surfaces unless the method and resulting surface treatment are authorized. Avoid inventing a minimum dyne value for NANOLAB products. Technical support should define the relevance of a screening result to the exact product and substrate combination.

Related guidance

Technical references: KRUSS: Test inks. These sources describe their stated methods or products; they do not certify NANOLAB products or establish compatibility with an unlisted surface.

Ask NANOLAB about the exact product and intended use. Use the current product documentation for formulation-specific instructions.

Preparation & Paint Correction2 min read

Iron Remover Colour Change: Read It as a Reaction Indicator

A colour-changing iron remover can show that a reaction is occurring, but the colour alone does not certify that every contaminant has been removed or that the surface is ready for a coating. Follow the exact product's complete process.