Adhesives

Written by Dr. Jody Muelaner Pressure adhesive, also known as pressure-sensitive adhesive (PSA) or self-adhesive, flows between the surfaces being bonded. If the surfaces are smooth enough to get close together, the viscosity of the thin film combined with molecular interactions, form a strong bond.  This is the type of adhesive used on self-adhesive tapes…

Master Bond EP21TPHT is a new two-component epoxy polysulfide system, designed for bonding applications that require toughened and thermally stable bonds resistant to chemicals. It resists temperatures up to 350° F, much higher than typical epoxy polysulfide systems. This room temperature curable adhesive also features convenient handling characteristics with a 1-to-1 mix ratio by weight…

Master Bond EP30DPBFMed is a two-part “flexibilized” epoxy-urethane hybrid system that can be used for bonding, sealing, coating, and encapsulation. It is formulated for disposable and reusable medical devices, meets USP Class VI requirements, and complies with RoHS3 in accordance with the EU directive 2015/863/EU. EP30DPBFMed is resistant to thermal cycling and sterilization, withstanding exposure…

DELO, a global manufacturer of industrial adhesives, announced a new light fixation that provides unprecedented speed for two-component epoxy resins: DELO-DUOPOX DB8989. Thanks to this hybrid chemistry, DELO says users will benefit from faster, less complex production processes, and simplified logistics. DELO-DUOPOX DB8989 secures components against slipping in just a couple of seconds. This means…

By Dr. Jody Muelaner Hot melt adhesive (HMA) is a thermoplastic that’s melted, typically using a glue gun, and applied in a molten state. As it cools it solidifies and forms a bond. HMA’s are used to bond paper and card in packaging and bookbinding, wooden furniture, and fabrics. They are used to fix, insulate…

Master Bond EP29LPTCHT is a two-component, low-viscosity epoxy compound that’s ideal for underfill and encapsulation applications. It uses no excessive heat for curing and has a long working life at room temperature. This system is electrically “insulative” and thermally conductive, with very fine particle size filler material. EP29LPTCHT easily dispenses into tiny gaps and, when…

Master Bond EP62-1AO is a two-part epoxy adhesive and sealant with an exceptionally long working life of between 12 to 14 hours at ambient temperature for a 100 gram mass. This makes it beneficial when bonding and sealing large or intricate parts that may require ample time for mixing and applying. This material has a…

Vertellus, a global supplier of high-performance additives to the plastics and polymers industries, recently showcased its portfolio of adhesives and sealants at K 2019. This includes the company’s Polycin polyols, Vorite prepolymers, and Sealrite gels. These materials are helping a wide variety of device manufacturers maintain product integrity in the face of increasingly harsh environments.…

By Ronald A. Miller, MS Underfill applications use adhesive compounds to fill the gap between a microchip package and the printed circuit board (PCB). This is necessary because new types of chip packages, such as ball grid array (BGA) and chip-scale packages (CSP), are surface-mounted — meaning solder balls attach the bottom surface of the…

Dropped objects are a concern at any job site. Now it’s possible to avoid the accidental slips or drops of a cell phone, tablet, and other tools or devices, thanks to new Grip Tape from CatTongue Grips.  The company has taken the power of its “GRIPTION” product, typically used for cell phones, and transformed it…