Thermally Conductive, Electrically Non-Conductive Silicone Meets NASA Low Outgassing Specifications

Oct. 13, 2022

Master Bond EP4CL-80Med is a one part, optically clear epoxy developed for use in medical device assembly applications. It withstands repeated sterilization cycles and passes ISO 10993-5 testing for non-cytotoxicity. This product cures at moderate temperatures of around 80-85°C within 60 to 90 minutes and faster at slightly higher temperatures. As a one part, non-premixed and frozen system, it contains no solvents, and has an “unlimited” working life at room temperature. Suitable for bonding, sealing, impregnating, and coating, it provides a high glass transition temperature of 155-160°C and has an extremely low viscosity of 50-150 cps at 25°C. This allows it to be applied by brushing, spraying, and spin coating.

EP4CL-80Med provides notable strength properties including a compressive strength of 12,000-14,000 psi and a high tensile modulus of 450,000-500,000 psi at room temperature. It is serviceable over the temperature range of -62°C to +232°C. This compound is an excellent electrical insulator with a volume resistivity of more than 1014 ohm-cm at room temperature and has a refractive index of 1.52 at 25°C. EP4CL-80Med has good resistance to many sterilization methods, including autoclaving, dry heat, radiation, and chemical sterilants. Furthermore, it resists vaporized hydrogen peroxide, a sterilization technology from STERIS®. It bonds well to a variety of substrates such as metals, composites, ceramics, and many plastics. Packaging is available in jars and cans, as well as syringes.

Request a technical data sheet

Request a safety data sheet

Discuss your application

Learn More

Sponsored Recommendations

Advancing Neuroscience Using High-Precision 3D Printing

March 7, 2025
Learn how Cold Spring Harbor Laboratory Used High-Precision 3D Printing to Advance Neuroscience Research using 3D Printed Optical Drives.

From Prototyping to Production: How High-Precision 3D Printing is Reinventing Electronics Manufacturing

March 7, 2025
Learn how micro 3D printing is enabling miniaturization. As products get smaller the challenge to manufacture small parts increases.

Sputtered Thin-film Coatings

Feb. 27, 2025
Optical thin-film coatings can be deposited by a variety of methods. Learn about 2 traditional methods and a deposition process called sputtering.

What are Notch Filters?

Feb. 27, 2025
Notch filters are ideal for applications that require nearly complete rejection of a laser line while passing as much non-laser light as possible.

Voice your opinion!

To join the conversation, and become an exclusive member of Laser Focus World, create an account today!