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Niel Seal Gasket & Joint Sealing Compound, Light Weight - 1Lb

$23.60/Each
Part# 04-03925
MFR Model# N20-66

Overview

N20-66 Seals threaded pipe joints, machined surfaces and flare nuts. Used on engine rear sections, sump gaskets, triple connector threads, channel plugs, air control valves, dump valve guides, water separator glasses, and for all metal-to-metal unions with any kind of gasket.

A special paste-type density for threaded pipe joints, gasoline and carburetor connections, water heater fittings, gas range valves, etc.
   
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Features

  • Use as a joint sealing and caulking compound, corrosion preventative and lubricant
  • For all metal-to-metal unions with any kind of gasket
  • Withstands extreme temperatures
  • Prevents corrosion and freezing of metal parts
  • Nielseal is unaffected by water, oil, ammonia, glycerin, steam, all types of gas, exhaust fumes, and most hard to hold liquids.
  • Withstands extreme temperatures and pressure
  • Will not shrink, crack or crumble
  • Seals threaded pipe joints and machined surfaces, flare nuts and tubing
  • For all metal to metal unions with any kind of gasket
  • Prevents corrosion.
  • Expands and contracts with temperature changes without affecting seal

Specifications

N20-66: Light Weight
  • Seals threaded pipe joints, machined surfaces and flare nuts. Used on engine rear sections, sump gaskets, triple connector threads, channel plugs, air control valves, dump valve guides, water separator glasses, and for all metal-to-metal unions with any kind of gasket.
N25-66: Medium Weight
  • Gasket and Joint Sealing Compound
  • Flexible, Non-Hardening, Leakproof Seal for Machined Joints and Gasket Applications.

Applications

N20-66: Light Weight
  • Is a flexible compound for use as a joint sealing compound, caulking compound, corrosive preventative, lubricant, threaded joint dressing, insulating material or filler with packing. Used on head and manifold gaskets of automotive and aircraft engines, water heater fitting gaskets, gas range valves and fitting, pipe threads on dry-cleaning solvent filters, railroad and truck air-brakes, fittings and lines, etc. For all metal-to-metal unions with any kind of gaskets.
N25-66: Medium Weight
  • Seals with a gasket or as a gasket. Seals pumps, tanks, pressed plates, covers, pans, etc for pipe threads and imperfect or uneven surfaces. For general gasketing and machine joints, cylinder heads, manifolds, differentials, transmission, muffler joints, radiator hose connections, and as a filler for water pump packing. Used as a gasket for gear housing that must retain oil and grease on appliances of all types.

Reviews

Great quality and service.

John C Verified Purchase

Niel Seal Gasket & Joint Sealing Compound, Light Weight - 1Lb

October 27, 2022

Wymore I Verified Purchase

Niel Seal Gasket & Joint Sealing Compound, Light Weight - 1Lb

August 11, 2022

Is very similar to the Tite Seal Compound. Should work good. You can thin it out with a small amount of caster oil. This works well. I also use this in the marine service business.

Jeffery J Verified Purchase

Niel Seal Gasket & Joint Sealing Compound, Light Weight - 1Lb

April 30, 2022

Goid stuff... worked perfectly..n

Anthony B Verified Purchase

Niel Seal Gasket & Joint Sealing Compound, Light Weight - 1Lb

May 25, 2021

Q&A

Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: Is this the new TiteSeal?

Yes, it is the same product.

Q: How long is the Niel Seal Compound shelf life?

Per the supplier: No known shelf life.

Q: What is the difference between light and medium? How do you choose which one? Is it dependent on pressure the seal would be under?

The light weight is a flexible compound for use as a joint sealing compound, caulking compound, corrosive preventative, lubricant, threaded joint dressing, insulating material or filler with packing.

The medium weight seals with a gasket or as a gasket. Seals pumps, tanks, pressed plates, covers, pans, etc., for pipe threads and imperfect or uneven surfaces.

Q: I have some Niel Seal that has made its way between two stainless steel meshes on a oil screen filter. What dissolves Niel Seal so that I can clean it out?

Any solvent (except water) will suffice. The vendor uses alcohol for clean up (Ethanol/Isopropyl). Acetone, toluene, mineral spirits, etc.. will work as well.

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