Exhaust System Components
FAQs for "Exhaust System Components"
Frequently Asked Questions
All other anti-seize I have used are thick. How can this work when it is so thin?
The D A M high temperature anti-seize formula is based on inert high temperature dry lubricants suspended in a naptha carrier with a few other low viscosity additives. The thick grease base in other anti-seize products on the market burn and char at exhaust temperatures leaving sticky hard deposits that actually contribute to the lock-up of exhaust joints. The D A M product carrier evaporates leaving only a film of dry lubricants in the joints that penetrates the pores of the stainless steel.
How does the D A M product work to loosen locked slip joints?
D A M’s light petroleum carrier uses capillary action to penetrate the joint and carry the small particles of dry lubricant into the joint. By mixing D A M and other solvents such as acetone, MEK or other solvents the viscosity is lowered more yet and the mixture will penetrate small spaces more effectively to loosen corrosion and combustion by products while lubricating the joint.
How is the D A M product different than other anti-seize products?
D A M anti-seize works on the principle of very small particles of inert dry lubricants imbedding themselves into the open pores of the stainless steel. The dry lubricants lowers friction and prevent corrosive adhesion of the two stainless steel surfaces. The dry lubricants prevent combustion by products from actually gripping the stainless steel. Other products rely on powdered metal such as copper or nickel in a mix of greases and graphite. The powdered metals themselves are often corrosive to the stainless steel at high temperatures and actually create adhesion by microscopic corrosive residue. The old failed theory is that the metal powder flakes will separate from each other and allow disassembly. This does not work at high temperatures and with stainless steel. Any graphite in the compound (graphite is required for MIL SPEC anti-seize compounds) sets up a severe galvanic corrosion action with the stainless steel and the powdered metals that produces corrosive by products that swell and lock the joint while attacking the grain structure of the stainless steel. This corrosive action is accelerated at high temperatures and contact with combustion by products.
Is there anything I can do to make D A M work better?
Since D A M is a mixture of heavy dry lubricants and light petroleum distillates, it will separate quickly. Shaking the can often during use keeps the lubricants in suspension. D A M works best when it is rubbed into the stainless steel. Rotation joints back and forth before final assembly will help imbed the dry lubricant particles into the stainless steel surface. Then disassemble and recoat the joint.
It is in a small can. Will it do very many exhaust joints?
Only a thin film is required to be on the surface of both parts of the exhaust joint so the small can will service many more exhaust joints compared to a big can of pasty grease.
Why does a small can of the D A M product cost so much?
The high temperature inert dry lubricants are expensive to produce and refine. Since it only takes a thin film to be effective it is more economical than other anti-seize compounds. A can goes much further.
Offering the largest inventory of exhaust system components!
McFarlane now has a full product line of exhaust system components, including AWI, Acorn Welding, and Nicrocraft! These leading exhaust manufacturers offer high-quality components for many major aircraft models including Aero Commander, American Champion, Beechcraft, Cessna, Cirrus, Grumman, Mooney, Piper, and Rockwell. Systems and parts for both Continental and Lycoming engines are available.
AWI Specializes in top quality exhaust systems, engine mounts, carb heat boxes, and more. Their replacement parts are made from stainless steel, aluminum, Inconel, titanium, and magnesium. Advanced aero-technology and precision machining ensure the perfect fit for your aircraft.
Acorn Welding develops welded, machined, and riveted components for all sectors of aviation. They design and manufacture turbine engine exhaust, Piston aircraft exhaust systems, engine mounts, and support trusses. Other products include assemblies such as induction boxes, seat frame elements, and engine and flight control linkages. Their exhaust products are made from stainless steel or Inconel with design improvements that reduce thermal fatigue and provide longer life.
All Nicrocraft™ aircraft exhaust parts are FAA approved and built to the latest OEM specifications. Heat-resistant 321 stainless steel and Inconel are used in the construction of all PMA parts, ensuring longevity and durability. They individually leak-test each and every exhaust system that comes out of their state-of-the art Oklahoma City facility to ensure 100% compliance with safety and performance standards.
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Also try D A M™ Exhaust Anti-seize/Lubricant
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