BLASTING PERFORMANCE of DURAMAX by Ecomaterials Inc Be

BLASTING PERFORMANCE of DURAMAX by Ecomaterials Inc. Be Brilliant. Go Green.

1. 1 DURAMAX - Specifications § ISO standard : in compliance with ISO 11126 -6 Non-metallic blast-cleaning abrasives Part 6 : Iron Furnace Slag § Free silica : not detected § Dust emission : very low § Recyclability : yes - depending on job conditions § Waste disposal : non-scheduled waste (depending on contamination by surface treatment and local regulations) § Product Size (mm) : 02 -0. 6, 0. 2 -0. 8, 0. 6 -1. 0, 1. 0 -2. 0, 0. 6 -2. 0, 2. 0 -5. 0 § Packing ECOMATERIALS INC. : PP Jumbo Bag, currently investigating 50 lb bags DURAMAXTM ABRASIVES

1. 2 DURAMAX - Properties ECOMATERIALS INC. DURAMAXTM ABRASIVES

1. 3 DURAMAX – Chemical Composition Element Test Result [wt%] Antimony not detected Lead not detected Arsenic not detected Mercury not detected Barium 0. 1040 Molybdenum 0. 0009 Beryllium not detected Nickel 0. 0010 Cadmium not detected Selenium 0. 0009 Chromium(VI) not detected Silver not detected Chromium 0. 0387 Thallium not detected Cobalt 0. 0025 Vanadium 0. 0515 Copper 0. 0070 Zinc 0. 0084 Fluoride Salts not detected ECOMATERIALS INC. DURAMAXTM ABRASIVES

1. 4 DURAMAX – Leaching Test Result (Unit : mg/L) Element Limit [ppm] Lead Less than 3. 0 not detected Copper Less than 3. 0 not detected Arsenic Less than 1. 5 not detected Mercury Less than 0. 005 not detected Cadmium Less than 0. 3 not detected Chromium Less than 1. 5 not detected CN Less than 1. 0 not detected Test result according to the Enforcement Rule of the Wastes Control Act by the Ministry of Environment of Korea ECOMATERIALS INC. DURAMAXTM ABRASIVES

2. 1 – Surface Cleanliness & Dust Emission Following test conditions applied: l l l NOZZLE bore [mm] PRESSURE at nozzle DISTANCE ANGLE GRADE OF CLEANLINESS SIZE [mm] : 10 - 13 : 7 - 9 bar, avg. 7. 5 bar : 45 - 50 cm : approx. 60 degrees : SA 2. 5 - 3. 0 : 0. 2 -0. 8/0. 6 -1. 0/0. 6 -2. 0 * Condition is adjustable by site circumstance. ECOMATERIALS INC. DURAMAXTM ABRASIVES

RAS GAS & Qatar Petroleum (Abratough – OEM Brand of DURAMAX in the Middle East/ 0. 2 - 0. 8 mm, specialized size) Before 　 After 　

Bulk Vessel Outer surface w/ DURAMAX Before 　 After 　

Floating Dock wall w/ DURAMAX Before 　 After 　

Steel Plate-I w/ DURAMAX 　 Copper Slag 　

Anchor Chain w/ DURAMAX Before 　 After 　

Shipyard, China DURAMAX 　 Copper Slag 　

3. 1 DURAMAX – Comparison with Other Abrasives DURAMAX 1 -2 mm DURAMAX 0. 6 -1 mm DURAMAX 0. 2 -0. 8 mm Copper Slag 16/30 Copper Slag 30/60 Nickel Slag 30/60 Coal Slag 20/40 Silica 20/30 Crushed Glass 30/50 Synthetic Olivine 30/60 Steel Slag Copper Slag Nickel Slag Coal Slag Silica Sand Crushed Glass Synthetic Olivine Dust Level (1 - 10) 1 = lowest 2 3 2 7 8 9 10 9 Embedment (1 - 4) 1 = lowest 1 1 1 2 2 1 3 3 1 1 Surface Profile (mils) 4. 3 4 4 4. 7 3. 6 2. 3 4. 3 3. 4 2. 7 3. 1 Consumption Rate (lb / ft²) 3. 5 2. 3 5. 2 3. 3 2. 9 3. 6 2 2. 2 1. 3 Cleaning Rate 2015 (ft² / min) 2. 2 2. 8 3. 8 1. 7 3. 1 3. 9 3. 1 4. 8 4. 0 6. 0 ABRASIVE ECOMATERIALS INC. DURAMAXTM ABRASIVES

3. 2 DURAMAX – Dust Emission COPPER SLAG 30/60 SILICA 20/30 Used for blast cleaning, rust removal of casting, forging steel, or shot peening, shot blasting and pre-treatment of steel structure. DURAMAX: 0. 2 -0. 8 mm DURAMAX: 0. 6 -1. 0 mm COAL SLAG 20/40 CRUSHED GLASS 30/60 DURAMAX: 1 -2 mm SYNTHETIC OLIVINE 30/60 ECOMATERIALS INC. CRUSHED GLASS 30/60 DURAMAXTM ABRASIVES