Solving Adhesion Issues of Coatings & Inks

Ensuring proper adhesion between coatings and various substrates(wood, metals, plastics and mineral substrates) continues to be one of the most critical challenges. Whether it is strong shrinkage seen within the coating itself or low surface energy of the substrate’s surface, multiple factors can negatively influence adhesion.

Simultaneously, applying incorrect methodologies will waste your time in resolving adhesion issues (poor wetting, insufficient roughness, lack of interactions & weak boundary layers...). Speed up by joining this online courseand:

1. Be quick to detect factorsdisturbing your coating adhesion by reviewing key adhesion mechanisms (intermolecular interactions, diffusion, surface roughness, penetration and interfacial crosslinking).


2. Troubleshoot fasterby reviewing compatible fix (pre-treatment & additives) based on root causes analysis.


3. Gain understanding of how to measure adhesionusing pull-off & cross-cut test.


4. Get expert guidanceto solve your own adhesion challengesbased on real-life examples.

Experienced developers, formulators, producers and usersof coatings, inks and related systems (waterborne, solvent-based, high solids, melts and powder coatings) for application on different substrates (wood, metals, plastics & mineral substrates...).

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Importance of wetting and spreading:surface tension, surface energy, pre-treatment & additives.

Pre-conditions in order to achieve adhesion:complete wetting, surface roughness, adjustment of interactions and prevention of stress (caused by shrinkage).

Influence of additives on adhesion:wetting agents, adhesion promoters and release agents.

Understanding of adhesion mechanisms:intermolecular interactions (hydrogen bonding), diffusion, penetration, mechanical anchoring & covalent bonding.

Main causes & their solutions for adhesive failure:additives, stress, substitution, hydrophobicity, dirt, smoothness and weak boundary layers.

How to measure adhesion:pull-off test & cross-cut test.

Every day problems associated with intercoat adhesion.

30 Mins Q&A session- Interact live, put across your formulation queries to the expert !

All these points will be illustrated withREAL LIFE EXAMPLES(wood coating system, cohesive failure, improve adhesion on plastic and covalent bonding with metal).

About the Expert

Jochum Beetsmagraduated in physical chemistry from the University of Groningen. Since 2004, Jochum is an independent consultant for companies in coating and ink industry and is specialized in the field of New Product Development. He is certified as a New Product Development Professional by PDMA, being the global leading organization with respect to product development and innovation. He conducts in-company training programs, SpecialChem online courses and is a lecturer within the Dutch Coating Technology training program.

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