Consulting
Charles M. Hansen offers consulting using over 40 years of experience with polymers and polymeric products
Key Technical Interests:
Solvent Technology 
Plastics 
Coatings - Hansen Solubility Parameter
- Diffusion in Polymers
- Permeation
- Corrosion
- Evaporation
- Film Formation
- Surface Phenomena
- Surface Resistance
- Rheology
- Chemical Protective Clothing
I currently consult or have recently consulted for a number of international and Danish companies in a variety of industries. This is possible because a fundamental approach using the Hansen Solubility Parameters coupled with insight into absorption and diffusion in polymers allows an overview not otherwise possible. The companies are in businesses using medical plastics in devices, drugs, safer solvent cleaners, barrier properties of chemical protective clothing (a university) and packaging, solvent selection for special purposes in several industries, affinities between fibers and matrix polymers (national laboratory), etc. depending on how far into the past one wishes to go. I have formulating experience in several industries, most notably coatings. Please note, however, that there are secrecy agreements that have to be respected in some cases.
Please contact me if you think I can help.
Charles M. Hansen