Sender: ducati@myrddin.imat.com

This might be of sufficient general interest to all:

(fwd from hotrod mail list)

Loctite Retaining Compounds
- ---------------------------
Notes:

+ The gap fills are all *maximum*. According to the guy at Loctite when I
  asked these very questions some time ago, the optimum gap is between 0.001"
  and 0.002" (0.002 to 0.004 diametral) for any of theses adhesives.
+ This table refers to the *retaining compunds*, not *threadlock compunds*
+ The viscosity "Low/Med./High" is from the descriptions for each product
+ The '660' is referred to as 'Quick Metal', considered a non-running product
+ If you're using another brand (is there any other ? :) you're on your own.
+ Cure Speed assumes no accelerator is used. Activators/accelerators may
  improve the gap filling capabilities slightly as well as ensuring proper/
  faster curing respectively. If you need to accelerate it, talk to your
  dealer; I don't have any specific numbers.
+ Primers are useful on inactive surfaces such as aluminum, black oxide,
  stainless steel and thermoset plastics
+ Remember... *CLEAN CLEAN CLEAN* !!!

- -----------------------------------------------------------------------------
Compound  No.     609    620    635    640    642    660     675    680
- -----------------------------------------------------------------------------

Color            Green  Green  Green  Green  Green  Silver  Green  Green

*Maximum*
Gap Fill         0.005" 0.015" 0.010" 0.007" 0.012" 0.020"  0.005" 0.015"
(Diametral)

Viscosity        V.Low  High   High   Med.   Med.   !!!!    Low    Med.
  (cP)            125   7000   2000   600    500   1200000  125    1250

Shear (psi)      3000   3000   4000   3000   3500   3000    3000   4000

Temp Range(F)

   Low           -65    -65    -65    -65    -65    -65     -65    -65
   High          300    450    300    400    350    300     300    300

Cure Speed

 Fixture (Min)   10     30     60     60     5      10      20     10
   Full  (Hrs)   24     24     24     24     24     24      24     24

Primer         T or N   T      T      T   T or N    N       T      T


- -----------------------------------------------------------------------------
Uses:

609: spindle bearings, lip seals, bearing races

620: engine cylinder liners, heat exchanger tubes

635: gears, pulleys, fans, collars, rotors, sprockets, cams and flywheels
           to shafts.

640: bushings and sleeves, rotors to shafts

642: bushings in manual transmissions

660: worn shafts, worn housings, worn end bells, bearing spinouts,
           wallowed keyways, wallowed splines

675: oil impregnated bushings, drill bushings

680: gears, wheels, pulleys, cams, collars, flywheels, sprockets, and rotors
           to shafts, replacement bearings in worn housings or on worn shafts.