Bridge Tops & Epoxy

[Ron Nossaman]

>  From these values, I would suggest that the hardness of the two products 
> is similar.

Looks like that to me too.


>Viscosity: Epotec 301 reports "Vicosity @ 23C is @100rpm 100-200 cPs". 
>West System reports "Mix Viscosity @ 72F (cPs) is 725-975". I suspect the 
>rpm the product is stirred at makes some difference.

One method of determining viscosity is measuring torque resistance to a 
standard size armature spinning in the test goop at a given rpm.


>  It was not stated exactly how the West System was measured. These 
> numbers appear to suggest that the West System resin is more viscous than 
> the Epotec, but I'm not sure about that.

Higher numbers at a given temperature should indicate "thicker" goo, so I 
think that's right. I found a comparative rating for molasses of 6600 CP @ 20C.


Ron N