Project #1
To eliminate the use of perchloroethylene
02/03/1997
Optical quality
50% glass, 50 aluminum
2-3 inches round
Small
Less than 1 lb
Polish of concave surface
wash
2000
18-24
Baron Blakshlee-Model MVW 320
Perchloroethylene
uses a hazardous chemical
To release glass lenses from aluminum holders by melting and dissolving resins used in mounting
Used Immediately
lenses are washed and inspected, holders are reused for more lenses
Degreaser also heats aluminum holders so that new glass lenses may be mounted using resin impregnated water.
Two chemistries found were Oxsol 100 and Glycol Ether DPM. Both have flash point issues to deal with. A second alternative would be to replace the resins.