The LED curing adhesive system from Master Bond, the LED405Med, meets ISO 10993-5 cytotoxicity requirements for use in medical device assembly. LED405Med is optically clear, with a refractive index of 1.50, and offers excellent light transmission properties. This electrically insulative system features a high volume resistivity of more than 1014 ohm-cm and a low dielectric constant of 4.2 at 60Hz.

Master Bond EP3UF-1 is a new single component epoxy that is not premixed and frozen. Due to its low viscosity of 5,000-15,000 cps, this heat curable thixotropic compound is suited for underfill and many bonding applications. EP3UF-1 delivers high bond strength and dimensional stability with a compressive strength of 18,000-20,000 psi and a tensile modulus of 450,000-500,000 psi.

A new single component epoxy that is not premixed and frozen, has been introduced by Master Bond with the EP17HTND-CCM. It is more convenient to handle, apply and store than typical two component glob top systems. This black, heat curable compound has a flowable paste consistency suited for glob top, chip coating and bonding applications. 

Master Bond EP41S-6 is a new two component epoxy system that meets UL 1203, which is defined by Underwriters Laboratories as the “Standard for Explosion-Proof and Dust-Ignition-Proof Electrical Equipment for Use in Hazardous (Classified) Locations”. To meet the UL 1203 requirements, samples of EP41S-6 were exposed to saturated vapors in air for the following chemicals: acetic acid (glacial), acetone, ammonium hydroxide (20% by weight)...

Master Bond EP110F8-3 is a two part epoxy system ideal for sealing, encapsulating, potting, and casting applications. “This toughened system provides very good flexibility and possesses a relatively high elongation of 120-150%”, said Rohit Ramnath, Senior Product Engineer. “It offers a low tensile modulus of around 5,000-15,000 psi and a shore A hardness of 40-50 at room temperature."

Master Bond EP70CN is a two part, thermally stable epoxy adhesive formulated using a natural, renewable and sustainable ingredient. This epoxy system forms high physical strength bonds and can be utilised for bonding, sealing, coating and potting. 

Master Bond EP21ND-LP was created for structural bonding applications involving large surface areas. It has a long working life of 2-4 hours at 75°F for a 100g mass. Its smooth paste consistency makes it convenient to apply and use. Shore D hardness is 70-80 when mixed in a one to one mix ratio by weight or volume. Moreover, certain properties of the epoxy can be altered by adjusting the mix ratio.

It has been announced that Master Bond EP30LTE-2 has been developed for joining dissimilar substrates exposed to thermally or mechanically induced stresses. It can be used for sealing, coating and encapsulating, especially for small to medium sized castings where a very low coefficient of thermal expansion (CTE) is required. 

Formulated for medical electronic applications, Master Bond EP62-1LPSPMed is a biocompatible two part epoxy that has a mixed viscosity of 150-300 cps. Its ultra low viscosity makes it suitable for use in underfill, impregnation and porosity sealing applications. This product exhibits wetting properties and can readily flow by capillary action in tight clearances or beneath devices. It adheres well to metals, plastics, composites, polyimides, glas...

Master Bond UV22DC80-10F is a single component, nanosilica filled compound featuring a UV and heat curing mechanism. This thixotropic, moderately low viscosity compound has a viscosity of 8,000-12,000 cps at 75°F (~ 23°C). It is said to provide outstanding dimensional stability and superior physical strength properties. Additionally, UV22DC80-10F is optically clear and offers the ability to be cured in shadowed out areas.

Master Bond MasterSil 151TC was developed to improve thermal management for electronic assemblies in bonding and gap filling applications. This 100% solids silicone compound features excellent thermal conductivity and superior electrical insulation properties. Volume resistivity is >1014 ohm-cm.

Master Bond EP3HTSDA-1 is a single part, no mix epoxy adhesive designed primarily for die attach applications. It exhibits a die shear strength of 20-22 kg-f and has a high thermal conductivity. “This 100% solids formulation has an ideal viscosity and flow for die attach, will not ‘tail’ and can be easily dispensed automatically” says Rohit Ramnath, senior product engineer. “Additionally it has an unlimited working l...

Developed by Master Bond for potting, sealing, encapsulation and casting applications, EP110F8-5 is dimensionally stable and has low shrinkage upon cure. This system is said to feature superior electrical insulation properties including a volume resistivity exceeding 1015 ohm-cm, a dielectric constant of 2.91 at 1 KHz and a dissipation factor of 0.009 at 1KHz.

With a low coefficient of thermal expansion of 15-20 x 10-6 in/in/°C, Master Bond EP13LTE is a one part epoxy for structural bonding applications. According to Master Bond, EP13LTE cures readily in 1-2 hours at 300-350°F and has limited flow while curing. It is said to bond well to many substrates such as metals, glass, composites, ceramics and plastics. 

Master Bond has published a  paper which offers a guide to evaluating and selecting adhesive products exposed to harsh chemical environments. It examines the importance of exposure variables, chemical interactions, testing and also includes practical suggestions of procedures on how to avoid generalities in the selection process.

Master Bond has developed X21Med for priming and bonding polyolefinic substrates. It is a single component elastomeric compound that passes ISO 10993-5 tests for cytotoxicity. According to Masterbond, this specialty system was designed to be used as a primer that would promote adhesion between polyolefins and other surfaces such as metals, ceramics, composites and other kinds of plastics. Surfaces primed with X21Med are compatible with a wide var...

Master Bond EP39MAOHT is a room temperature curing system which is said to be good for demanding bonding, sealing, coating, potting and encapsulation applications. According to the company it is a versatile product that combines convenient handing, good flow, thermal conductivity, electrical insulation and high temperature resistance.

Master Bond EP41S-F is a two part epoxy for bonding, sealing, coating and encapsulation applications. It combines fast ambient temperature cure speed with chemical resistance and superior electrical insulation properties. This versatile system is easy to handle and has a forgiving 100 to 25 mix ratio by weight. After mixing, EP41S-F polymerizes quickly and can usually be removed from a fixture within 20-30 minutes. Full cures are achieved in 24 h...

Master Bond MB600G is an aqueous based, sodium silicate system with graphite filler. It is intended for use in applications where moderate shielding effectiveness is required and cost is a more significant consideration. Electromagnetic interference (EMI) and radio frequency interference (RFI) are very important factors in electronic applications. The energy emitted from various sources such as radios, appliances, etc. can interfere with other el...

Master Bond’s EP62-1BF is a two-part epoxy with the ability to withstand exposure to aggressive chemicals including acids, bases and solvents, even at high temperatures.  Its  chemical resistance has been tested by taking cured samples of the system and immersing them in a variety of chemicals like acids, toluene, ammonium hydroxide, etc. According to the company, even after six months, the samples weren’t affected by chemic...