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Re: REFLECTOR: Re: Epoxy pump/ Ez 84

In a message dated 7/6/99 6:40:05 PM Pacific Daylight Time, 
bdcowan@telepath.com writes:

>    It appears that the cylinders in my epoxy pump which is the adjustable 
> factory (velocity) sells are grinding off a slight amount of metal into my 
> epoxy.. It is a very fine dust that has progressively gotten worse and 
> and the pump is only 6 months old.. well, 150 hrs of building time... Has 
> anyone else experienced this..? Today I broke the thing down entirely and 
> noticed wear marks on the cylinders which supported my theory that what I 
> finding in my epoxy (mainly in the resin side), was metal dust. Is this 
> particularly harmful to the integrity of the layups?

I too have noticed the streaks of aluminum in my epoxy mixing cups. I don't 
think the presence of the aluminum will have as great an effect as the 
potential error in ratio that the wear may be inducung. It may be time to 
check the pumped ratios.

Dale Alexander
173 RG Gull Wing