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Nu-Calgon - 4350-16 Seal-Loc Multi-Purpose Thread Sealant (16 fl. oz can)

Item: 4350-16
MFR: 4350-16

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About This Product

Product Info


Nu-Calgon - Seal Loc

Seal-Loc is a high performance, multi-purpose thread sealant for use on plastic and metal pipe and fittings. It sets soft, and unlike most other joint sealants, no cure time is required, so finished joints can be tested and put into service immediately. It never hardens, cracks or separates, and is non-hazardous, non-flammable and gives off no odors. It is safe for use with CFCs, HCFCs, and HFCs, as well as most gases and liquids, having a pressure rating of up to 12,000 psi for liquids and 2,600 psi for gases. It is certified to NSF Standards 61 and is safe for drinking water lines. Seal-Loc has a brushability of -25°F, allowing it to be easily applied at low temperatures and is performance tested at temperatures between -50°F and 400°F. The non-drip formula wipes clean from hands and tools with a dry rag insuring a clean, quick, and easy application every time.

Seal-Loc is the perfect product for any service technician in the HVACR industry or anyone connecting pipe and fittings. It does not harden, crack or become brittle; joints can be disassembled without damage to pipe, fittings or threads years after the joint was made. Seal-Loc can be used on pipes and fittings made of aluminum, black iron, brass, copper, glass, monel, fiberglass (reinforced), polyethylene, nylon plastic, PVC, CPVC, ABS, stainless steel, galvanized steel and many others.

For best results, apply Seal-Loc into clean, dry male threads. Apply proper torque when assembling joint. Finished joints can be tested and put into service at once.

  • Seals plastic and metal threads
  • Use with liquid and gases
  • Non-drip, no odor
  • Soft-set
  • No cure time required
  • Wide temperature range: -50°F to 400°F
  • Certified to ANSI/NSF Standard 61


Weight1.6 Pounds (lbs)
Width3 Inches (In)
Height12 Inches (In)
Country of OriginUSA
Length3 Inches (In)
ApplicationConnecting pipe and fittings. Apply to clean, dry male threads.
Dry TimeNo cure time required
Prop 65No
Service Temperature-40°F to 125°F (-40°C to 51.6°C)
Shelf LifeIndefinite
Size16 Ounce
StandardsANSI/NSF Standard 61
Temperature Range-50°F to 400°F (-45.5°C to 204.4°C)
TypeThread Sealing Compound
UV ResistantNo


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