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RockHard Polyurea

RockHard Polyurea

RockHard Polyurea is a two component 100% solid Polyurea with superior performance in industrial applications. RockHard Polyurea displays extremely fast cure times with excellent adhesions to different substrates. RockHard Polyurea can be spray applied at temperatures ranging from 20°F to 150°F. RockHard Polyurea has excellent chemical resistance and excellent water insensitivity. RockHard Polyurea conforms to USDA and FDA guidelines for incidental food contact.

PRIMARY APPLICATIONS:

RockHard Polyurea adheres well to several substrates including concrete, steel, and wood. Some typical uses include:

 

• SECONDARY CONTAINMENT

• WASTEWATER LAGOON AND POOL LININGS

• TABLE EDGING

• COLD STORAGE AREAS

• WASH BAY AND SHOWER LININGS

• COOLING TOWERS

• PETROCHEMICAL REFINERIES

• OILFIELD PIPELINE COATINGS

• WATER PROOFING

• SEWER LINERS

• MANHOLE RESTORATION

• INDUSTRIAL FLOORING

• BRIDGE COATINGS

• BED LINERS

 

 

TYPICAL PHYSICAL PROPERTIES:

 

Tensile Strength (PSI) ASTM D412 2870

Elongation (%) ASTM D412 250

100% Modulus ASTM D412 2120

300 % Modulus ASTM D412 3100

Tear Strength (PLI) ASTM D2240 190

Hardness (Shore A) ASTM D1737 90

Flexibility (1/ 8 “ Mandrel) ASTM D1737 Pass

Flashpoint (°F) ASTM Pensky-Martin >200

Taber Abrasion (mg loss) ASTM D4060 70

CS18 WHEEL1 kg per 1000 cycles

 

Viscosity B Side CPS 650

Viscosity A Side CPS 450

Ratio A / B PBV 1 : 1

 

 

TYPICAL PROCESSING PROPERTIES:

Fast Slow

Gel Time seconds 9 22

Tack Free Time seconds 16 35

Open to Foot Traffic minutes 5 60

Open to Industrial Traffic minutes 60 120

 

RECOMMENDED EQUIPMENT SETTINGS:

Hose Temperature A-Side °F 150

Hose Temperature B-Side °F 150

Block Temperature °F 150

Spray Pressure (PSI) 2000

 

APPLICATION EQUIPMENT:

This material must be applied utilizing a high-pressure plural component pump (1:1 by Volume) . The proportioning unit must be capable of supplying the correct pressure and heat for the required hose length on a consistent basis. This characteristic is mandatory to apply this elastomer in a consistent, efficient manner.

INSTALLATION RECOMMENDATIONS:

Substrate surfaces should be free of loose particles, rusts, voids and spills. Chloride, moisture and pH levels should be checked prior to application. Always agitate the B-side before using.

CONCRETE:

Old Concrete – Sandblasting, shot blasting or water blasting is highly recommended to remove surface contaminates. Any oils or fats must be removed prior to product application. Acid etching may be required (followed by a thorough rinsing) to open the pores of the concrete to accept a primer coat. PolyBlackPrime is recommended for MAXLINERA minimum 40-mil coating ofMAXLINER is generally recommended for chemical and abrasion resistance.

New Concrete – The concrete should be allowed to cure for a minimum of 30 days. Shot -blasting, sand blasting or acid etching (15% muriatic acid / 85% H2O) is required to remove the surface lattice that appeared during the curing process. PolyBlackPrime should be applied to reduce out gassing.

Carbon Steel – The steel must be prepared to a “near white metal,” equivalent to SSPC 10 orNACE 2. For immersion service, a 3-mil blast profile is recommended. A 2-mil blast profile is generally accepted. A 10 – 40 mil coat of MAXLINER is generally recommended based on chemical resistance issues.

Substrate Repairs – All spalls and cracks should be repaired to ICRI standards. Expansion joints should be honored. Horizontal control joints can be filled with a Joint Seal prior to the application ofMAXLINER.

PRIMER REQUIREMENTS:

PolyBlackPrime

SAFETY AND HANDLING:

Refer to MSDS sheets

SHELF LIFE AND STORAGE:

Six months in factory delivered unopened drums. Keep away from extreme heat, cold, and moisture. Maintain at a proper storage temperature of 60°F - 100°F.

PACKAGING:

• 5 gal pails

• 55 gal drums

• 275 gal totes

 

ADHESION RESULTS:

ASTM D-4541 Elcometer

Concrete (No primer) >400 psi → Concrete Failure

Concrete (Epoxy) >300 psi → Concrete Failure

Steel (No primer) >1500 psi → Substrate Failure

Steel (Epoxy primer) > 900 psi → Primer Failure

Wood (No primer) > 250 psi → Delamination

 

 

COVERAGE CALCULATIONS:

 

Coating Thickness Sq.Ft /gal

20 mils 70

30 mils 48

40 mils 36

50 mils 29

60 mils 24

80 mils 18

100 mils 14

250 mils 5.5

 

 

 

CHEMICAL RESISTANCE:

 *R  Recommended  Little or no visible damage

*RC  Recommended Conditional  Some effect, swelling, discoloration

*C  Conditional  Crackling-wash down within 1 hour of spillage to avoid effects

*NR  Not Recommended

*Dis  Discoloration

 

 

 

 

 

 

 

 

Chemical Result (25°C)

Acetic Acid (100%) C

Acetone C

Ammonium Hydroxide (50%) RC

Benzene C

Brine-Saturated H2O (310g/l) R

Chlorinated H2O R

Clorox® (10%) H2O R

Diesel Fuel RC

Gasoline RC

Gasoline / 5 % MTBE RC

Gasoline / 5% Methanol RC

Hydrochloric Acid (20%) R

Hydrofluoric Acid (10%) NR

Hydraulic Fluid (oil) RC

Isopropyl Alcohol R

Lactic Acid RC

MEK RC

Methanol R

Methylene Chloride C

Mineral Spirits RC

Motor Oil R

MTBE C

Muriatic Acid (10%) R

NaCl / H2O (10%) R

Nitric Acid (20%) NR

Phosphoric Acid (10%) R

Phosphoric Acid (50%) NR

Potassium Hydroxide (10%) R

Potassium Hydroxide (20%) R, Dis

Propylene Carbonate RC

Skydrol® C

Sodium Hydroxide (25%) R

Sodium Hydroxide (50%) R, Dis

Sodium Hypochlorite (10%) R

Sodium Bicarbonate R

Stearic Acid R

Sugar / H2O R

Sulfuric Acid (10%) R

Sulfuric Acid (>50%) RC

Toluene R

1,1,1-Trichlorethane C

Trisodium Phosphate R

Vinegar / H2O (5%) R

H2O R

H2O (14 days @ 82°C) RC

Xylene RC

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