Surface Wetting and Pretreatment Methods
By Scott Sabreen, The Sabreen Group Plastics adhesion problems are widespread throughout the industry. A major contributing factor to these problems is that many plastics have chemically inert and nonporous surfaces with low surface tensions. That is, most plastics are hydrophobic and are not naturally wettable. These properties, although advantageous to the design engineer, often [...]
Cold Gas Plasma Surface Modification – Optimize Plastics Bonding Adhesion
By Scott R. Sabreen, The Sabreen Group, Inc. Polymeric and elastomeric substrates often can be extremely challenging to achieve robust bonding adhesion strength to like or dissimilar materials. Bonding applications are not limited to only adhesives, but include printing inks, paints and coatings, encapsulant and potting compounds, metallization and more. This article describes “Low Pressure [...]
