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Master Bond Unveils Supreme 45HTQ-4, a Toughened Epoxy for High-performance Bonding Applications

Published on 2016-03-14. Author : SpecialChem

Featuring a silicon carbide filler, Master Bond Supreme 45HTQ-4 is a toughened epoxy for high performance bonding, sealing, coating and casting. This specialty system can be used for a wide variety of special industrial, aerospace, OEM and oil processing applications, especially in downhole situations.

Master Bond Supreme 45HTQ-4
Fig. 1: Master Bond Supreme 45HTQ-4

Supreme 45HTQ-4 has the unique combination of exceptional chemical, temperature and abrasion resistance. Serviceable from -100°F to +450°F, it is capable of withstanding rigorous thermal cycling. This compound offers high tensile lap shear, compressive and tensile strength of 1,400-1,600 psi, 24,000-26,000 psi and 8,000-9,000 psi, respectively. Supreme 45HTQ-4 also retains its strength at elevated temperatures. It is a dimensionally stable system with low shrinkage upon curing. Additionally, this epoxy has excellent electrical insulation properties with a dielectric constant at 60 Hz of 4.6 and a volume resistivity exceeding 1014 ohm-cm.

Supreme 45HTQ-4 has a mix ratio of 100 to 30 by weight and a thixotropic paste consistency. It features a long pot life of more than 12 hours at room temperature for a 100 gram batch. This compound requires oven curing at 250-300°F with various cure schedules. A post cure of 4 hours at 350°F will optimize properties. Bond strength to a wide variety of substrates, including metals, composites, ceramics, rubbers and most plastics is excellent.

This gray colored system is available for use in standard packaging options ranging from ½ pint to 5 gallon kits as well as specialty Semkits. Supreme 45HTQ-4 has a shelf life of 6 months at ambient temperatures.

About Master Bond

Master Bond Inc. formulates the highest quality products and offers unmatched technical advice and customer support. Its product line consists of advanced adhesives, sealants, coatings, potting/encapsulation compounds and impregnation resins. Each compound is designed to meet specific application needs and requirements. Master Bond manufactures over 3,000 grades of specially designed formulations. The company offers replacements for competitors' discontinued products.

Source: Master Bond

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