Painting Springs

[Mudrat]

Just do me a favor and tell me you don't ever use JB Bore Compound in your barrels.

Nope - been a competitive shooter for over 20 years and had some .. ummm ... ah ... "other" training. Plus after treating with the Spica Gold (commercial name is Plate+), on a 300 Win-Mag tests show negligable throat wear after 300 rounds (normally the half to 2/3 barrel life) and in a .45 the velocity increase was average 30FPS. I used to clean after every match (300-450 rounds) Now I just need to wipe down and clean once a season (almost 2500 rounds).

Pat

[Mudrat]

Not to cause any friction in this depate (yuk, yuk), but here is the technical response from the Parsec Group. Another reference is from teh ASME JournalHERE and another quoted below from the University of Sheffield.

12 May 05

Pat: The MS Molly is a compound of uninhibited (not acid neutralized) and not remicronized moly disulfide (not a suspension) mixed with a fast drying alcohol base. It was originally touted as a bullet coating. Spray on and let dry. The typical problems with build-up and acid formation resulted in its use. To our knowledge it is not used to any extent by anyone except a few who will believe anything the Ms. Molly people tell them.

The Moly-Fusion is a compound of Molybdenum Dithiophosphate which was patented by the Vanderbilt family many years ago and trademarked as "Moly Van L".
This formula has a bad habit of breaking down over time with one of several compounds resulting - including Phosphoric Acid. You can imagine what Phosphoric Acid will do to a firearm or anything made of metal.

"Striction" is somewhat of a bastard word with no one claiming that they started its use. It is not an accepted term in Tribology. Usually it is used by the uneducated in an attempt to convey to others how smart they are. "Strong Interfacial Adhesion" means nothing more than a high degree of friction between 2 or more interacting surfaces (substrates) which move against each other.

We continue to be amazed at how many people run around constantly trying to alter names, make up names, etc. in order to sell someone an alleged moly product.

J. Weldon Smith
Director of Tribology
comcntr/JWS/sc

Pat

OBTW What is Tribology?
"Tribology is defined as the science of interacting surfaces in relative motion. The word tribology comes from the Greek tribos, meaning rubbing. In any machine there are lots of component parts that operate by rubbing together. Some examples are bearings, gears, cams and tappets, tyres, brakes, and piston rings. All of these components have two surfaces which come into contact, support a load, and move with respect to each other. Sometimes it is desireable to have low friction, to save energy, or high friction, as in the case of brakes. Usually we don't want the components to wear so they are lubricated.

The study of friction, wear, lubrication and contact mechanics are all important parts of tribology. Related aspects are surface engineering (the modification of a component's surface to improve its function, for example by applying a surface coating), surface roughness, and rolling contact fatigue (where repeated contacts causes fatigue to occur)."