Copaltite Sealant for Refrigeration Lines

Copaltite is specifically resistant to refrigerants, ammonia, Freon, and brine — the primary media in industrial refrigeration systems — and is effective from -315°F to 1500°F, covering cryogenic refrigeration through ambient conditions. It is the trusted sealant for refrigeration line threaded connections, flanges, and valve fittings in cold storage, food processing, petrochemical, and HVAC applications across the UAE and GCC.

Why Refrigeration Line Sealing Is Uniquely Demanding

Refrigeration systems present a sealing challenge that differs from most industrial applications: the working fluid — whether ammonia, Freon, CO2, or a synthetic refrigerant — operates at negative temperatures on the suction side of the system and at elevated pressure and temperature on the discharge side. Every threaded fitting, flange, and valve connection must maintain a leak-free seal across this wide operating range, in both directions, continuously.

Refrigerant leakage is expensive, environmentally regulated, and — in the case of ammonia — a serious safety hazard. Conventional thread sealants frequently fail in refrigerant service because they cannot maintain their sealing performance across the wide temperature range from cryogenic suction conditions to warm discharge conditions, or because they are chemically attacked by the refrigerant itself.

Why Copaltite Is the Standard for Refrigeration Line Sealing

 

Copaltite explicitly lists refrigerants and Freon among the media it resists — one of the few industrial sealants with a proven track record in direct refrigerant contact service. Its properties address every refrigeration sealing requirement:

  • Specifically resistant to refrigerants, ammonia, Freon, and brine
  • Effective from -315°F to 1500°F — covers cryogenic suction conditions and warm discharge conditions
  • Seals at the very low temperatures where many sealants become brittle and crack
  • Anti-seize — refrigeration line connections can be broken for valve and equipment maintenance
  • Copaltite Liquid Form seals threaded refrigerant line fittings and machined valve connections cleanly
  • Copaltite Cement Form seals warped flanges on aged refrigeration equipment and cold store plant

Copaltite Liquid Form vs. Cement Form for Refrigeration Lines

Copaltite Liquid Form is the product of choice for precision machined turbine flanges and threaded connections where surfaces are in good condition and close tolerances are maintained. Its smooth paste spreads evenly across machined surfaces and provides a clean, tight seal.

Copaltite Cement Form is the preferred option for main body flanges with surface imperfections, warped joint faces, scored seating surfaces, and aged turbine casings where gap-filling capability is needed to compensate for surface condition.

Both products share the same temperature range, MIL-S-15204D qualification, chemical resistance, and anti-seize properties.

Where Copaltite Is Applied on Refrigeration Lines

  • Suction and discharge line threaded connections and flanges
  • Compressor suction and discharge valve connections
  • Evaporator and condenser refrigerant connections
  • Expansion valve and solenoid valve fittings
  • Liquid line and hot gas bypass line connections
  • Ammonia refrigeration system threaded and flanged joints
  • Brine system connections in cold storage and process refrigeration

Shop Copaltite for Refrigeration Lines

Frequently Asked Questions

What sealant is safe for use on refrigerant and ammonia lines?

Copaltite is specifically formulated to resist refrigerants, ammonia, Freon, and brine — making it one of the few industrial pipe sealants proven safe and effective in direct refrigerant contact service. It is the standard pipe thread sealant for ammonia refrigeration systems worldwide.

Can Copaltite seal refrigeration fittings at cryogenic temperatures?

Yes. Copaltite's lower service temperature limit of -315°F covers the most extreme cryogenic refrigeration service conditions — maintaining its sealing performance and elasticity even at temperatures where most sealants become brittle and crack.

Does Copaltite work on both the low-pressure suction side and high-pressure discharge side of a refrigeration system?

Yes. Copaltite covers both the cryogenic suction conditions and the elevated temperature and pressure of the discharge side — a single product that seals the entire refrigeration system.

Where can I buy refrigerant line sealant in the UAE or GCC?
Copaltitemena is the Stockiest for the Middle East. Email [email protected] or visit copaltitemena.com.

Contact

Availability & Support Copaltite sealants for Refrigeration Lines applications are available across the UAE and all major GCC industrial, power, and marine supply networks through Copaltite MENA. Email: [email protected] | Website: copaltitemena.com