High Temp Epoxy

Scott Bader introduces high temperature thermoset resin

Developed at the company's R&D Centre in Wollaston, UK, Scott Bader believes Crestapol 1234 can outperform special epoxy systems, poyimides, PEEK, PEI, PES, PEK and even cyanate esters.

Crestapol 1234 has performed so well that Scott Bader researchers found it difficult to accurately measure the ultimate performance levels of a fully cured test piece. A number of independent materials test houses were unable to accurately measure the heat deflection temperature (HDT) and the thermal decomposition temperature of Crestapol 1234 since conventional test equipment for composite resins could not measure values above 300°C.

Tests were finally carried out by two different accredited test houses. The HDT testing was carried out by Intertek Plastics Technology Laboratories , Massachusetts, USA, which determined the HDT of Crestapol 1234 to be in excess of 300°C.

The thermal decomposition temperature was measured by Gearing Scientific, Cambridge, UK, which recorded the thermal decomposition temperature for Crestapol 1234 at 330°C in air and 340°C in inert gas. Post curing at temperatures above the resins standard 200°C post cure temperature does not affect the decomposition temperature.

Crestapol 1234 resin is being commercialised with a range of viscosities suitable for manufacturing filled and reinforced composites parts by hand lay-up or closed moulding, with a gel time of 16-17 minutes.

The resin is expected to find applications in the aerospace, automotive, electrical and electronics, and oil and gas markets.

Food Grade Epoxy Resists High Temperatures & Harsh Conditions ...

Jun 1, 2011 -- Master Bond is pleased to announce the release of EP42HT-2FG, a new food grade epoxy system. EP42HT-2FG has been independently tested and certified by a leading national laboratory to meet the stringent requirements of FDA CFR 175.300. It also was toxicologically evaluated to meet the NSF/ANSI 51.4.1 (2009) standard for food equipment materials. Food grade certified epoxy EP42HT-2FG may be used across a wide variety of applications in the food industry, such as bonding and sealing metals, plastics, rubbers and other substrates, commonly found on food service equipment. Featuring high resistance to chemicals and many solvents, along with boiling water, fats and oils, it may be readily used as a coating for storage tanks, bins, hoppers, and other containment vessels. Capable of withstanding extreme conditions over the wide service temperature range of -60°F to +450°F (FDA certification done at the temperatures specified in the test protocol), EP42HT-2FG resists steam, radiation and frozen storage conditions. With a volume resistivity of over 1014 ohm-cm, EP42HT-2FG also serves as a potting and encapsulation compound for electronic components and devices. It has a low viscosity of 55,000-110,000 cps for Part A and 75-130 cps for Part B at room temperature. This adhesive has a tensile strength greater than 12,000 psi and a tensile lap shear strength exceeding 2,000 psi at 75°F. Master Bond’s EP42HT-2FG has superior heat resistance and approval for use in demanding food grade applications. Read more about Master Bond’s Two Component Epoxy Systems at http://www.masterbond.com/lp/tabs/tp_byt_2ptepoxy.html or contact Technical Support by phone at +1-201-343-8983, by fax at +1-201-343-2132 or by e-mail at techinfo@masterbond.com.

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