Toughened Epoxy Polysulfide Hybrid Offers Advanced Chemical Resistance

Master Bond EP21TP-2NV is a two part epoxy polysulfide formulated for use as an adhesive, sealant and potting system. It withstands prolonged exposure to many harsh chemicals including fuels, oils, hydrocarbons and hydraulic fluids. It is also fully RoHS compliant, meeting RoHS3 Directive (EU) 2015/863.
Sept. 16, 2019

Key Highlights

  • Offers elongation of 40-80% and tensile strength of 3,000-4,000 psi for durable, flexible bonds.
  • Resists thermal cycling from -80°F to +250°F, maintaining performance in extreme temperatures.
  • Cures at room temperature in 48-72 hours, with the option to soften hardness via heat curing at 200°F.
  • Provides excellent electrical insulation with a dielectric constant of 3.7 at 60 Hz.
  • Bonds effectively to metals, glass, ceramics, rubber, and plastics, suitable for diverse substrates.

EP21TP-2NV offers an elongation between 40-80% at room temperature and superior toughness with a tensile strength of 3,000-4,000 psi. It resists aggressive thermal cycling over the service temperature range of -80°F to +250°F [-62°C to +121°C]. With a dielectric constant of 3.7 at 60 Hz, the system provides excellent electrical insulation properties.

Master Bond EP21TP-2NV cures at room temperature in 48-72 hours to form a rigid material with a Shore D hardness measuring 60-65. A unique feature of EP21TP-2NV is its ability to cure softer with the addition of heat. For example, when cured at 200°F for 2-3 hours its hardness decreases to 15-20 Shore D.

EP21TP-2NV bonds well to a variety of substrates such as metals, glass, ceramics and many rubber and plastic materials. This compound is available in standard size containers from ½ pint, pint, quart and gallon kits as well as specialty packaging including double barrel syringes and gun dispensers.

Master Bond Chemically Resistant Adhesive Systems

Master Bond EP21TP-2NV is a two part epoxy polysulfide featuring superior chemical and thermal cycling resistance while maintaining tough, flexible bonds. Read more about Master Bond’s chemically resistant adhesive systems at https://www.masterbond.com/properties/chemical-resistance or contact Tech Support. Phone: +1-201-343-8983  Fax: +1-201-343-2132  Email: [email protected].

Sign up for our eNewsletters
Get the latest news and updates

Voice Your Opinion!

To join the conversation, and become an exclusive member of Electronic Design, create an account today!