OEM

High Temperature Resistant Adhesives Beat the Heat

Selecting the right adhesive product for extreme temperature applications may seem as straightforward as reading temperature resistance values on data sheets. Some engineers will sometimes address temperature issues by simply selecting an adhesive rated for temperatures beyond their application's expected operating temperature. However, because suppliers test adhesives so differently, temperature resistance values on data sheets are notoriously inconsistent. Master Bond's latest white paper takes a closer look at some of these crucial issues and the key factors to consider when your adhesive application has to beat the heat or cope with the cold.

New One Part UV and Heat Curable Epoxy System

Master Bond Inc., Hackensack, N.J. is pleased to announce the development of a special dual cure (UV/heat curable) epoxy system called UV15DC80. It is designed for bonding, sealing, coating and potting applications. This compound has a low viscosity, is easy to apply and requires no mixing. Environmentally friendly, it is 100% solid and contains no solvents or volatiles. UV15DC80 is not inhibited by oxygen and has low shrinkage upon cure.

Particularly noteworthy is that UV15DC80 can cure in shadowed areas by supplemental heat curing at 80°C for 15-30 minutes. Straight UV curing can be accomplished for thicknesses of .010"/.020" in seconds using UV light at 365 nm with 30-40 milliwatts per cm² of energy. Faster cures can be achieved at higher energy outputs. Post curing at 125-135°C for 15-30 minutes can increase the Tg from 90°C achieved by straight UV cure to over 130°C.

UV15DC80 has high physical strength properties. Adhesion to metals, glass, ceramics and most plastics is excellent. It has superior chemical resistance. Shore D hardness is >70 and its elongation after cure is 3-4%. UV15DC80 has a tensile strength of >4,200 psi and a tensile modulus of 120,000 psi. Its refractive index is 1.517.

Storage stability of UV15DC80 is 6 months at room temperature in the original unopened containers. It is available for use in half-pint, pint, quart, gallon, and 5 gallon pail containers. For ease of use, it also is available in syringe applicators.

UV Curable Adhesive/Sealant Meets NASA Low Outgassing Requirements

Master Bond Inc., Hackensack, NJ, is pleased to announce the development of a unique one component UV curable modified epoxy system called UV10TKLO-2. This formulation offers optical clarity, high physical strength properties, and has outstanding chemical resistance. It is not oxygen inhibited and cures rapidly at room temperature when exposed to UV light. Maximum UV absorption takes place in the 320-365nm range.

Master Bond UV10TKLO-2 is easy to apply and has an advantageous high viscosity. It has passed the rigorous tests to meet low outgassing specifications as per NASA ASTM E-595. It can be used in a wide array of optical, electro-optical and vacuum applications that until now have been off limits for UV curable compounds. To optimize low outgassing properties, UV10TKLO-2 should be preheated to 50ºC for 15 minutes prior to use and then allowed to cool to room temperature.

Particularly noteworthy is its superior electrical insulation properties. It has a volume resistivity of >1014 ohm cm and a dielectric constant of 3.6 at 60Hz. UV10TKLO-2 has a service temperature range of -60ºF to 300ºF. It is available for use in half pint, pint, quart, and gallon containers. Shelf life in original unopened containers is 6 months at 75ºF.

UV Curable Compound With Superior Gap Filling Properties

Master Bond UV10TK40 is a UV curable, no-mix epoxy resin system with exceptional sealing and gap-filling properties. It excels in applications such as aligning parts and bonding irregularly shaped surfaces, especially in production environments where increased speed and reduced waste are paramount. Its very high surface hardness (Shore A >75) also makes it an excellent choice for clear coating.

UV10TK40 is easy to apply and has a viscosity of 35,000 - 45,000 cps. In addition to our standard packaging, UV10TK40 is also available in convenient, ready-to-use syringe applicators. The system contains no solvents or other volatiles and is 100% reactive.

UV10TK40 is not oxygen inhibited and cures rapidly in the presence of air upon exposure to UV light at room temperatures. It forms highly durable bonds with a typical tensile strength of 8,300 psi, a Young's modulus of 245,000 psi, and an elongation at break of 6%. Additionally, it has good dimensional stability and high heat stability (94°C Tg).

Heat Resistant Epoxy Adhesive for High Performance Structural Bonding

For outstanding, high performance bonding strength to both similar and dissimilar substrates, Master Bond Polymer Supreme 46HT-2 was developed. This two component adhesive features high temperature resistance along with superior toughness and strength. It has excellent durability, thermal cycling and shock capabilities, as well as superb electrical insulation properties.

With a balance of superior peel and shear strength properties, Supreme 46HT-2 is suitable for applications where long term exposure to wide temperature ranges between -100°F and +500°F is required. It is used extensively in aerospace, electronic, metalworking, transportation, appliance and chemical/oil processing applications.

With a mixing ratio of 100 to 30, it cures at elevated temperatures with a minimum 250°F required for cure. Moreover, product properties are relatively unaffected by small changes in mix ratio. There is also a non-drip version available called Supreme 46HT-2ND2 that will not flow during cure. It is available for purchase in half-pint, pint, quart, one gallon and five gallon container kits.

High Temperature Resistant, Toughened Structural Adhesive Cures at Room Temperature

Formulated for structural applications in extreme environments with temperatures from -80°F to +425°F, Master Bond Supreme 33 has superior resistance to thermal cycling, thermal shock and impact. This toughened, two-component epoxy offers high structural bond strength to a wide variety of substrates including metals, glass, ceramics, wood, vulcanized rubbers and many plastics. Supreme 33 also resists chemicals including water, oil and many organic solvents.

Supreme 33 has a mix ratio of 100 to 70 by weight or 1 to 1 by volume. It cures conveniently at room temperature in 48 to 72 hours. For optimal performance, the suggested schedule is curing overnight at room temperature followed by 2 to 3 hours at 150 to 200°F. This 100% reactive epoxy does not contain any solvents or diluents, has exceptional dimensional stability and features very low shrinkage upon cure.

It produces high performance bonds boasting a shear strength over 2,500 psi, a tensile shear strength greater than 7,500 psi and a T-peel strength exceeding 15 pli. With a volume resistivity of 1014 ohm-cm, a dielectric strength over 400 volts/mil, and a dielectric constant of 3.8 at 75°F, Supreme 33 is an outstanding electrical insulator that is widely used in the electronic, electrical, aerospace and OEM industries. Supreme 33 is also available in a non-drip version called Supreme 33ND.

Thermally Conductive, Electrically Isolating Epoxy Resists High Temperatures

Master Bond Inc., Hackensack, N.J. has introduced Supreme 11AOHT, a two component room temperature curing epoxy adhesive with high thermal conductivity and excellent electrical insulation properties. Supreme 11AOHT is a paste that can be applied without sagging or dripping even on vertical surfaces. It has a convenient mixing ratio of 1 to 1 by weight or volume. Supreme 11AOHT has a service operating temperature range of -100°F to +400°F and is well suited for applications involving thermal cycling.

Master Bond Supreme 11AOHT has high shear and peel strength. It bonds well to both similar and dissimilar substrates. This toughened compound has exceptional adhesion to most metals, ceramics, glass and most rubbers and plastics. Bonds are resistant to water, oil and most organic solvents.

Supreme 11AOHT has a thermal conductivity of 10 BTU/in/ft²/hr/°F. It has a dielectric strength of >400 volts/mil. It also exhibits a T-peel aluminum to aluminum of 15 pli and a shear strength of 1,600 psi, aluminum to aluminum.

Master Bond Supreme 11AOHT is available for use in pint, quart, gallon, 5 gallon container kits.

New One Component Flexible High Performance Epoxy Based Adhesive/Sealant Has Long Term Ambient Temperature Storage Capability

Master Bond Polymer System Supreme 10HTFL is a new one component flexible high performance epoxy resin based adhesive/sealant with an exceptionally wide service temperature range of 4K to +350°F making it suitable for cryogenic applications. It cures readily to a tough, strong flexible thermoset polymer at temperatures of 250-300°F and above. Unlike other commercially available flexible one part epoxy adhesive sealants, it features extended ambient temperature storage capability and does not require refrigeration for extended storage before use. Master Bond Polymer System Supreme 10HTFL features high physical strength properties and excellent adhesion to a wide range of both metallic and nonmetallic substrates even upon prolonged exposure to hostile environmental conditions. Adhesive and sealing properties to aluminum, steel and other metals, as well as fiber reinforced composites, most plastics, ceramics, glass, wood, etc. are remarkably high. Tensile lap shear strengths of more than 2000 psi and T-peels in excess of 60 pli are obtained for aluminum bonding.

Master Bond Polymer System Supreme 10HTFL has remarkable high resistance to severe thermal and mechanical shock and vibration. Pertinent physical strength properties including flexibility are retained when Supreme 10HTFL bonded assemblies are subjected to the most demanding service conditions. The performance properties of this one component flexible epoxy compound are particularly impressive when bonding substrates with wide differences in their thermal expansion coefficients. Supreme 10HTFL has superior chemical resistance to water, salts, oils, fuels and many organic solvents. It is an excellent electrical insulator. Master Bond Polymer System Supreme 10HTFL does not require any mixing prior to use and provides a simple, cost effective solution to many difficult assembly problems which call for convenient fast processing along with high performance over a wide service temperature range.

One Part High Strength Epoxy With High Thermal Conductivity Meets NASA Low Outgassing Specifications

Resistance to impact, thermal shock, vibration and stress fatigue cracking is of vital importance in the aerospace, optical, medical and oil/chemical processing industries. Master Bond Polymer Adhesive Supreme 10AOHT-LO is a single component, no mix, thermally conductive compound featuring superior electrical insulation and toughness.

It meets NASA low outgassing specifications and has superior durability and dimensional stability. It is formulated to cure at elevated temperatures between 250°F and 300°F for 1 hour, and produces exceptional bonds for service over the wide temperature range of 4K to 400° F. These tough bonds are remarkably resistant to severe thermal cycling and many chemicals, including water, oil and various fuels.

The hardened adhesive is a superb thermal conductor with a thermal conductivity of 9-10 BTU /in/ft²/hour/°F. Its Shore D hardness exceeds 75 and its compressive strength is greater than 15,000 psi. It is available for purchase in half pints, pints, quarts, gallons and 5 gallon containers.

New High Strength One Part Epoxy Adhesive Cures at 80°C

Master Bond Supreme 3HT-80 is a new one component heat curing epoxy adhesive developed by Master Bond Inc. Supreme 3HT-80 exhibits both high shear and high peel strength. It offers superior resistance to impact, thermal shock, vibration and stress fatigue cracking. This no mix compound has an unlimited working life and cures within 30 minutes at 175°F (80°C).

Supreme 3HT-80 has excellent adhesion to metals, glass, ceramics, wood, vulcanized rubbers and most plastics. It forms bonds that are resistant to water, oil, fuels and most organic solvents even upon prolonged exposures. Supreme 3HT-80 has a service operating temperature range of -100°F to +350°F. It is 100% reactive and does not contain any solvents. The hardened adhesive is a superior thermal insulator.

Supreme 3HT-80 is available in half-pint, pint, quart, gallon and 5 gallon containers. For ease of application, it is also available in convenient cartridge applicators.

 

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