"David Storm" <[email protected]
> wrote in message
> FYI. Everything you wanted to know about WD-40...and more. It's not bugle oil.
> PHYSICAL CHARACTERISTICS:
> APPEARANCE Clear or slightly cloudy COLOUR Light amber ODOUR Very slight characteristic pleasant
> odour SPECIFIC GRAVITY .800±.020 at 25±°C VISCOSITY 27.5±1.0 sec. Zahn#1 at 25°C FLASH POINT
> (MINIMUM) 43°C open cup PERCENT NON- VOLATILE (MINIMUM) 22% by weight PERCENT VOLATILE 78% by
> weight aliphatic (MAXIMUM) petroleum distillate POUR POINT Less than -73° C LOW TEMPERATURE
> STABILITY Excellent COVERAGE 14m² to 24m² per litre BOILING POINT (INITIAL) 149°C(minimum) WEIGHT,
> applied coating 1.7/1000 kg/m² THICKNESS .0025mm to .0076mm
> CORROSION PROTECTION: (on freshly sanded mild steel panels) EXPOSURE RESULTS Humidity(JAN-H-792)
> No rust after 1000 hours Salt Spray(FED STD 151) No rust after 50 hours Salt Spray(FED STD 151)
> Rust beginning after 100 hours Under actual conditions the duration of protection obtained using
> WD-40 will vary with the type of material being protected and the conditions of exposure.
> Generally, on mild steel the protection under various conditions will be approximately as follows:
> 1. Covered or indoor storage 1 year or longer.
> 2. Protected exterior storage 6 months to 1 year.
> 3. Normal exterior exposure 30 to 60 days.
> 4. Severe exterior exposure 15 to 30 days( on or very near the beach, subject to high humidity,
> salt spray and salt fog) If longer protection is desired, WD-40 should be reapplied when
> necessary. LUBRICATION: Dynamic coefficient of friction BEARING PRESSURE COEFFICIENT TEST 1000
> kPa 0.112 Heat-treated 4340 steel 5000 kPa 0.113 with normal blue oxide 10000 kPa 0.121 film
> against itself lubricated 15000 kPa 0.131 with WD-40. 20000 kPa 0.138 30000 kPa 0.146
> ELECTRICAL: Dielectric strength ASTM D-877 12,000V. per 2.55 mm Contact resistance ASTM B-182
> modified. BARE WD-40 TREATED CONTACT RESISTANCE CONTACTS CONTACTS OF FILM before cycling 0.0066
> 0.0083ohm .0017ohm after 5 cycles 0.0067 0.0085ohm .0018ohm after 100 cycles 0.0069 0.0086ohm
> .0017ohm after 1000 cycles 0.0074 0.0085ohm .0011ohm after 20,000 cycles 0.0083 0.0098ohm
> EFFECT ON MATERIALS:
> GENERAL: Nearly all materials react to WD-40 as they would to high grade aliphatic petroleum
> spirits with the same exposure, i.e., spray, quick dip or prolonged immersion. WD-40 contains no
> silicon, teflon or chloroflourocarbons.
> RUBBER: No visible effects on surfaces of various types of rubber sprayed with WD-40. Certain
> types of rubber will swell upon prolonged immersion in WD-40.
> HIGH STRENGTH STEELS(for hydrogen embrittlement): Certified SAFE according to the Lawrence
> Hydrogen Effusion Test.
> FABRICS: The following fabrics were exposed to WD-40 with no effect, except slight staining which
> was readily removed with naptha or dry cleaning solvent: Nylon, Orlon, Wool, Dacron, Cotton.
> PAINTED SURFACES: Many types of paint on various surfaces have been exposed to WD-40 with no
> effect. Wax polishes and certain wax coatings may be softened by WD-40.
> PLASTICS: The following plastics were immersed in WD-40 for 168 hours with no visible effects:
> Polyethylene,Formica,Epoxy,Delrin,Ploypropylene,Acrylic,Vinyl,Teflon,Polyest er and Nylon.
> Clear polycarbonate and polystyrene may stress craze or crack in contact with WD-40.
> "Qui si parla Campagnolo" <[email protected]
> wrote in message
> news:[email protected]
> > distorm-<< Another mechanic freaked out when I mentioned that suggestion, and pointed out that
> > WD-40 contained high MW paraffinic hydrocarbons which will gum up a shifter.
> > What bugle oil...
> > Peter Chisholm Vecchio's Bicicletteria 1833 Pearl St. Boulder, CO, 80302
> > (303)440-3535 http://www.vecchios.com
"Ruote convenzionali costruite eccezionalmente bene"