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Formulated for bonding, sealing, coating and encapsulation applications, Master Bond EP41S-5 is a room temperature curing epoxy that combines a high strength profile, higher electrical insulation values and chemical resistance.

Suitable for use in the aerospace, electronic, power, chemical processing, specialty OEM and other industries, EP41S-5 is able to deliver long-term protection against a wide array of chemicals including acids, bases, alcohols, fuels and many solvents. Most noteworthy is its resistance to methylene chloride, a common stripping agent. This makes EP41S-5 ideal for tamper proofing applications in the electronics industry.

EP41S-5 also offers convenient handling with a 100 to 25 mix ratio by weight. The mixed epoxy has good flow properties with a moderate viscosity of 25,000cps – 30,000cps. It bonds well to a wide variety of substrates including metals, composites, glass, ceramics, as well as many rubbers and plastics.

EP41S-5 will cure at room temperature or more rapidly at elevated temperatures. Upon curing, this system is rigid, with a hardness of 85-95 Shore D. It has a tensile strength of 10,000psi – 12,000psi at room temperature. Additionally, EP41S-5 features reliable electrical insulation characteristics with a dielectric constant of 3.5Hz at 60Hz and a volume resistivity greater than 1,014 ohm-cm.

EP41S-5 is serviceable over the wide temperature range of -80°F to +300°F (-62°C to +149°C). Its natural colour is black, but can be formulated in additional colours. This solvent free system is available for use in ½ pint, pint, quart, gallon and 5 gallon container kits as well as double barrel cartridges that can be dispensed in gun applicators.