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Re: Foam


Rick,  I had worked with a mfgr. that had purchased such guns from 
BASF, the supplier for the foam.  That mfgr. was using a water 
flush.  BASF also sells a gun with air purge; less wastewater 
discharge, but the wands must be changed more often.
-Wayne


> 2.  I recall seeing guns utilizing "mixing" tips which combine two
> components in the tip, eliminating the clean up problem associated
> with the mixing head.  Again, have you seen this type of tip in
> 2-part urethane foam applications?  Sources/vendors?


**********************************************************
Wayne P. Pferdehirt, P.E., AICP
U. of Wis., Solid & Hazardous Waste Education Center
610 Langdon Street, Room 529, Madison, WI  53703-1195
Phone:  608/265-2361     Fax:  608/262-6250
pferdehi@epd.engr.wisc.edu
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