$ASQEconomic Analysis for Degre Economic Analysis for Degreasing and Paint Stripping Using Sponge Blasting Assumptions: · Square feet of paint removed per year: 20,000 · Paint stripping rate of the sponge blasting system: 180 · Paint stripping rate of chemical stripping: 25 · Labor rate: $30 · Foam media cost: $65 · Foam media used: 18000 · Feed unit cost: $15,500 · Classifier unit cost: $8,550 · Washer unit cost: $23,700 · Chemical cost: $11.40 · Chemicals used: 416 · Water usage cost: $1.94 · Water treatment: $8.24 · Volume water treated: 1,600,000 · Paint and solvent sludge disposal cost: $2,000 · Sludge generated: 4 · Dry paint waste residue (after recycling foam media): 240 · Paint disposal cost: $2 Annual Operating Cost Comparison for Sponge Jet and Chemical Stripping Sponge-Jet™ Operational Costs: Labor: $3,333 Chemical: $0 Foam Media: $23,400 Hazardous Waste Disposal: $480 Water Purchase $0 Water Treatment: $0 Total Operational Costs: $27,213 Total Recovered Income: $0 Net Annual Cost/Benefit: ($27,213) Economic Analysis Summary Annual Savings for Sponge-Jet™: $25,817 Capital Cost for Diversion Equipment/Process: $47,750 Payback Period for Investment in Equipment/Process: 1.8 Page 1$ASQEconomic Analysis for Degre ft2/hr ft2/hr /hr /50 lbs or $1.30 /lb lbs /gal gal /1000 gal or $0.00194 /gal /1000 gal or $0.00824 /gal gal /ton ton lbs /lb Chemical Stripping $24,000 $4,742 $0 $8,000 $3,104 $13,184 $53,030 $0 ($53,030) years Page 2