Thermoset adhesives are thermosetting polymers, or plastics, that are used as adhesives. They’re supplied in an uncured state consisting of unlinked monomers. A chemical hardener may be used to cause hardening or curing may be induced by the application of some other stimulus, such as heat or light. Thermoset adhesives have very high strength, excellent…
Master Bond releases new electrically conductive die-attach epoxy
Master Bond EP17HTS-DA is a new one-component, no mix, die-attach epoxy that is electrically conductive and withstands high temperatures. It is a silver filled system. Typically, glass transition temperature (Tg) declines with the addition of a filler like silver. However, with this specialty formulation, a high Tg of 140-150°C is maintained and it passes MIL-STD-883J thermal…
What are pressure 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…
New tough epoxy polysulfide adhesive resists high temperatures
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’s urethane-based epoxy system meets USP Class VI specifications
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’s offers new light fixation for two-component epoxy resins
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…
What are hot melt adhesives?
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’s underfill epoxy ideal for thermal conductivity and electrical insulation
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 intros thermally conductive, chemically resistant epoxy sealant
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 offers advanced adhesives and sealants for industrial manufacturers
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.…