TOUGH -SEAL™ PC
& TOUGH-SEAL™ PC ULTRA

TOUGH-SEAL™ PC is bulldog tough and bred to grip and protect, under the most aggressive conditions.
TOUGH-SEAL™ ULTRA 60<

TOUGH-SEAL™ ULTRA 60 is a tough and durable longer working time low viscosity potting compound and sealant that flows like maple syrup around electrical components to ensure complete coverage of your entire PCB or electronic assembly. Bulldog tough to endure over 2000 hours of rigorous reliability testing at 85C/85%, TOUGH-SEAL™ ULTRA, without any signs of degradation or change in hardness, making it an excellent choice for endless electronics applications.

TOUGH-SEAL™

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.

TOUGH-SEAL™ PC & TOUGH-SEAL™ PC ULTRA

TOUGH-SEAL™ & TOUGH-SEAL™ ULTRA  are an original and next generation family of potting compounds, available in a variety of formulations that vary in gel time, viscosity, and hardness. From our self-leveling low and medium viscosity formulations for complete coverage around printed circuit board components or connectors, to our glob-top formulation for localized potting and damming, to our new UL 94 V-0 Listed formulation, the TOUGH-SEAL™ product line has something to fit a wide variety of potting and encapsulating applications.

Which TOUGH-SEAL™ is Right For You?

TOUGH-SEAL™ PC & TOUGH-SEAL™PC ULTRA are a superior family of KEY potting compounds and sealants available in several 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™ Applications

TOUGH-SEAL™ ULTRA & TOUGH-SEAL™
vs. Other Potting Compounds

TOUGH-SEAL™ ULTRA 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.

TOUGH-SEAL™ vs. Other Potting Compounds

Introducing TOUGH-SEAL™ULTRA!  This next generation of KEY potting compounds and sealants bred better than ever to grip and protect electronics, PCB’s and electronic assemblies, connectors, LED Lighting and more, under the most aggressive conditions.

The new extended 18 month shelf-life TOUGH-SEAL™ ULTRA is RoHS, REACH and Prop 65 Compliant.  This next generation elastomeric hybrid epoxy remains flexible at sub zero temperatures, is non shrinking, and has excellent thermal cycling stability from -40 to 150C, just like the original TOUGH-SEAL.   With very low exotherm in large volume pours, extremely low shrinkage, and little to no expansion or contraction with temperature changes, TOUGH-SEAL™ ULTRA is gentler on sensitive circuitry, than hard epoxies, delivering low embedment stress upon cure and during thermal cycling.  TOUGH-SEAL™ ULTRA provides durable encapsulating protection that guards electrical components from exposure to the harmful effects of the environment better than typical epoxies, urethanes and silicones.

With no signs of degradation or change in hardness even after over 2000 hours of rigorous reliability testing at 85C/85%, TOUGH-SEAL ULTRA, is an excellent choice for endless applications especially those where polycarbonate would normally weaken, etch, craze, or deterioration completely under these conditions.

TOUGH-SEAL™ ULTRA & TOUGH-SEAL™
KEY Properties:

TOUGH-SEAL™ ULTRA

  • Longer Working Times with FASTER Heat Cure Time
  • Passes 2000 hours of rigorous reliability testing at 85C/85%
  • Exceptional Polycarbonate Compatibility
  • 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 Adhesion
  • Anti-Microbial – MIL-STD-810G Method 508.6
  • RoHS, REACH, and PROP 65 Compliant

TOUGH-SEAL™

  • 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™ PC

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™PC Evaluation Kit Today!

Your TOUGH-SEAL™ PC Evaluation Kit will include everything you need to perform your own high quality product evaluation for your application.