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SPRAY LININGS: PLURAL COMPONENT SPRAY

TECHTHANE® 180

TECHTHANE 180 is an advanced, high performance, 100% solids, spray-applied urethane elastomer designed to protect equipment from fine particle abrasion.  It cures to form a smooth, glossy, rubbery elastomer with 2,000% better fine-particle abrasion resistance than steel.  With its high flexibility and resistance to many types of corrosion, it is also well-suited for general-purpose containment and corrosion applications.  In the spray process, it builds and cures quickly, has a long recoat window, and is not affected by moisture as are standard-type urethanes.  Primary usage is as a seamless, abrasion-resistant lining in the mining and mineral processing industries, where it typically increases the lifespan of equipment subject to severe fine particle abrasion by 1,000% and more.  Typical applications are screen frames, slurry tanks, hydrosizers, flumes, and other similar equipment.

PHYSICAL PROPERTIES OF CURED LINING
PROPERTY AIR-ASSIST AIRLESS
Hardness, Shore A (ASTM D2240) 82 78
Tensile Strength, psi (MPa) (ASTM D412) 3,500 (24.15) 2,800 (19.30)
Elongation, % (ASTM D412) 440 450
100% Modulus, psi (MPa) (ASTM D412) 800 (5.50) 600 (4.15)
Tear Strength, Die C, pli (kN/m) (ASTM D624) 400 (70.00) 325 (57.00)
Tear Strength, Split, pli (kN/m) (ASTM D470) 80 (14.00) 70 (12.25)
Film Density, g/cm3 (ASTM D792) 0.93 0.85
Abrasion Resistance, % >steel (Sand Slurry) 2,100 2,000
Adhesion (peel) to prep. substrates, pli (kN/m) (ASTM D429) 90 (15.75) 90 (15.75)
Finish Smooth Smooth, gloss

PROPERTIES OF LIQUID COMPONENTS
PROPERTY PART 'A' PART 'B' MIXED (A+B)
Weight, lbs./gal. (g/L) 8.85 (1060) 8.60 (1030) 8.80 (1055)
Solids Volume, % 100 100 100
Viscosity, cps/mPs @ 75°F (24°C) 12,000 3,300 N/A
Viscosity, cps/mPs @ 155°F (68°C) 800 150 N/A
Flash Point, TCC, °F (°C) >250 (120) >250 (120) >250 (120)
VOC, lbs./gal. (g/L) 0 0 0

APPLICATION SUMMARY
Application Environment 50-150°F (10-65°C), 0-95% R.H.
Application Equipment heated plural-component, static-mix
Mix ratio 3:1 by volume
Coverage 1,800 mils/ft2/gal. (1.10 mm/m2/L)
Per Coat Build, DFT, horizontal / vertical - stationary no limit / 10-40 mils (0.25-1.00 mm)
Per Coat Build, DFT, horizontal / vertical - rotating no limit / 10-125 mils (0.25-3.00 mm)
Max. Total Coating Thickness, DFT no limit
Tack-free Time 12 minutes @ 75°F (24°C)
Recoat Window, DTB w/o prep. 10 minutes - 5 hours @ 75°F (24°C)

AVAILABILITY
Color International Orange
Safety Yellow, Black, others by special order
Packaging 20 and 200 gal. sets


© 1998 Technical Urethanes, Inc. 98/08/03