Project #1
Replacement of Methyl Ethyl Ketone as a cleaner for adhesives
06/24/2002
75 % Stainless steel
mixing epoxy/silicone adhesive products
60 liter mixer
Medium
excess resin scrapped off, sometimes followed by wiping with rags
Use
20
Methyl Ethyl Ketone
Vapor emissions; flammability; storing of flammables on-site; expense; waste disposal
Removal of uncured and/or hardened (cured) resin
No relation
Used Immediately
Ionic purity required by some customers for selected products
1-Avoidance of use of gamm-gutylsolactone (FDA issues). 2-Avoiding use of n-methyl pyrrolidone (SARA Toxic material)
Seven trials were conducted for multiple contaminants. The first trial showed that two semi aqueous products needed less than 2 minutes to remove the epoxy resin from the aluminum coupons. The two aqueous products almost removed all of the contaminant within the five minute period. The second trial found that Both Bio Chem Systems products were successful in removing the red adhesive in three minutes of ultrasonic cleaning. The third contaminant was removed by four products tested, both the Bio Chem System and Dynamold products. The fourth contaminant was cleaned by four semi-aqueous products removing over 99% of the coating. In the sixth trial, only two products, both Bio Chem Systems products, removed the contaminant from the coupons. The final test found that both the Bio Chem System products and the Vertec BioSolvent removed over 90% of the contaminant from the aluminum coupons. The Vertec BioSolvents product did not rinse well under the trial settings.