TOUGH-SEAL™ PC

TOUGH-SEAL™ is bulldog tough and bred to grip and protect, under the most aggressive conditions.
TOUGH-SEAL™ Comparison Table TOUGH-SEAL™ Applications
tough-seal label design

TOUGH-SEAL™ is a superior family of KEY sealants for potting electrical and electronic components that provides a reliable grip and exceptional encapsulating protection for any potting application where premium thermal cycling performance, excellent thermal shock resistance, and outstanding environmental and corrosion protection are a must.

Eight Formulations

Which TOUGH-SEAL™ is Right For You?

TOUGH-SEAL™ is a superior family of KEY sealants available in four standard formulations to fit a variety of potting applications. While all TOUGH-SEAL™ formulations are durable hybrid epoxy elastomers that grip and protect under the most aggressive conditions, they are available in a combination of properties that vary in hardness, gel-time, working time, and flow.

TOUGH-SEAL™ Comparison Table

TOUGH-SEAL™ vs. Other Potting Compounds

TOUGH-SEAL™ is a RoHS Compliant, easy-to-mix, two component durable hybrid epoxy elastomer that offers a unique combination of KEY properties not commonly found in just one potting compound. It offers the heat resistance of an epoxy, the flexibility of a urethane and the durable encapsulating protection of a silicone. TOUGH-SEAL™ is not a urethane, so it is isocyanate-free and it is not moisture sensitive.

With exceptional flexibility at temperatures as low as -103°F (-75°C) and high temperature resistance up to 302°F (150°C). TOUGH-SEAL™ grips in the cold, when other potting compounds contract, and maintains a tough seal in the heat, when other potting compounds wilt. TOUGH-SEAL™ does not crack, so electronic components remain protected from moisture. When exposed to moisture, TOUGH-SEAL™ also offers Anti-Microbial protection. TOUGH-SEAL™ does not support fungal growth and meets the requirements of MIL-STD-810G Method 508.6.

With very low exotherm in large volume pours, extremely low shrinkage, and little to no expansion or contraction with temperature changes, TOUGH-SEAL™ is gentler on sensitive circuitry, than hard epoxies, delivering low embedment stress upon cure and during thermal cycling.

TOUGH-SEAL™ provides durable encapsulating protection that guards electrical components from exposure to the harmful effects of the environment better than typical epoxies, urethanes and silicones.

Key TOUGH-SEAL™ Properties:

  • Faster and Longer Working Times
  • Isocyanate-Free / Not Moisture Sensitive
  • Low Embedment Stress
  • Exceptional Moisture Protection
  • Minimal Expansion & Contraction with Temperature Changes
  • Excellent Low Temperature Flexibility from -103°F (-75°C)
  • High Temperature Resistance up to 302°F (150°C)
  • Excellent Thermal Shock Resistance
  • Strong Adhesion to Thermoplastics & Wire Insulation
  • Aggressive Aluminum Adhesion
  • Anti-Microbial – MIL-STD-810G Method 508.6
  • RoHS Compliant
  • Faster and Longer Working Times
  • Isocyanate-Free / Not Moisture Sensitive
  • Low Embedment Stress
  • Exceptional Moisture Protection
  • Minimal Expansion & Contraction with Temperature Changes
  • Excellent Low Temperature Flexibility from -103°F (-75°C)
  • High Temperature Resistance up to 302°F (150°C)
  • Excellent Thermal Shock Resistance
  • Strong Adhesion to Thermoplastics & Wire Insulation
  • Aggressive Aluminum Adhesion
  • Anti-Microbial – MIL-STD-810G Method 508.6
  • RoHS Compliant

Read More About TOUGH-SEAL™

Tough-Seal Solves Problems

Wherever working conditions are harshest, the Tough-Seal line stands up to punishment that causes other encapsulants to fail.

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Tough-Seal Cures

All the Tough-Seals cure to completion at ambient temperatures. Tough-Seal 21 and 31 are designed to have faster initial gelation times than Tough-Seal 22 and 32.

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Tough-Seal Performs

Tough-Seal is the KEY material for the electronic encapsulation of sensitive electrical components requiring premium thermal cycling performance.

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Order your TOUGH-SEAL™ Evaluation Kit Today!

Your Evaluation Kit will include everything you need to perform your own high quality product evaluation for your application.

Evaluation Kit – TOUGH-SEAL™