Powercrete R-95

Powercrete® R-95 is a high-build solvent free novolac epoxy coating designed for protecting new line pipes and pipeline rehabilitation projects that operates at temperatures up to 95ËšC (203ËšF)

  • Description

    Powercrete® R-95 is a high-build solvent free novolac epoxy coating designed for protecting new line pipes and pipeline rehabilitation projects that operates at temperatures up to 95ËšC (203ËšF). Powercrete® R-95 can be used for extra protection on top of FBE mainline coatings or as a DTM (drirect to metal) coating when an increased temperature-and chemical resistance is required.
     

    Features

    • 100% Solids Novolac Epoxy
    • no VOC
    • high temperature and chemical resistance
    • Excellent adhesion to FBE and abrasive blasted steel
    • Excellent cathodic disbondment characteristics
    • Excellent wastewater and sulphuric acid resistance
    • Suitable for pipeline operating temperatures to 95°C (203°F)
    • Can be sprayed and hand applied up to 1000micron (40mils) in one multi-pass layer 

     



    Product Performance 
    (processing under laboratory conditions) 

       Test Method Typical Value
    Cathodic Disbondment  ASTM G8 (25ËšC) (77ËšF) 30days 3mm
      ASTM G95 (95ËšC) (203ËšF) 30days 8mm
    Flexibility NACE RP-0394 0.27Ëš/PD at 23ËšC/73ËšF
    Impact Resistance ASTM-G14 68in/lb/7.6Nm/7.6J at 40mils/1000micron
    Adhesion to FBE ASTM D4541  3000psi/20MPa
    Adhesion to Steel ASTM D4541 3500psi/22MPa
    Adhesion to Steel,90 D
    HWI at 85ËšC(185ËšF)    		 ASTM D4541 3130psi/21MPa
    Abrasion Resistance ASTM D4060 850cycles a mil
    (34 cycles/micron)
    Resistane to Acids & Alkains ASTM C581  Excellent
    Dielelctric Strength ASTM D149  690V/mil (27V/micron)
    Thin film Water Immersion ASTM D570  0.15% (24 hours)
    Hardness ASTM D2240 85 Shore D

     

    General Product Information

    Color Grey
    Finish Gloss
    Primer Self-priming on FBE and DTM
    Dry Film Thickness 40mils (1000micron) for most applications
    Coverage Rate (theoretical) 40.8 sq.ft/USG at 40mils (1000micron)DFT. 1,00m^2 /l at 40mils (1000micron)DFT.
    Volume Solids 100%
    VOC Content 0 g/l
    Flash Point 154ËšC (309ËšF) mixed product
    Mixing Ratio 3:6:1 (A to B in volume) 100:16 (A to B by weight)
    Potlife 14 minutes at 25ËšC (77ËšF)

     

  • Specifications

    Curing Times at 25ËšC (77ËšF)

    Gel Time:  31 minutes
    Dry Time:  1.3 hours
    65 Shore D:  2.2 hours (ready for holiday test)
    75 Shore D:  5.0 hours (full cure)

    Cure time is based on 40 mils (1000 micron) DFT. Recoat interval at
    21ËšC (70ËšF) is 34-60 minutes and 4-7 minutes at 65ËšC (150ËšF)
     

    Inspection and Repair 

    Inspection  The finished coating must be visually inspected for any defects, such as runs and sags, fisheyes, blistering, pinholes, missed spots and possible contaminants. Pinhole/Holiday detection must generated according to NACE SP0188.
    Coating Thickness  The coating thickness (DFT) must be within the specified DFT range. Use calibrated equipment and measure according to SSPC-PA 2 or other specified standard.
    Repair  Pinholes/Holidays must be located and repaired with approved material. Consult Powercrete® for specific information. Retest the repaired area.


    Cleaning & Handling 

    Cleanup  Use Acetone or MEK. 
    General  Transport and stacking is possible after full cure of the coating and generating a Holiday test (NACE SP0188). This time can be reduced by increasing the curing temperature. Consult Powercrete® for specific information.

     

    General Order Information

    Product                      Powercrete® R-95. Product dimensions and contents:
    Drum               
    Part A 40 gal/151.4 l  (625 lb/283.5 kg)
    Part B 46 gal/151.4 l  (400 lb/181.4 kg)
    Pail    
    Part A  4 gal/18.9 l  (61.7 lb/28 kg)
    Part B  4.6 gal/18.9 l  (39.5 lb/17.9 kg)
    Kit Options  1.44 gal/5.45 l  (20 lb/9.1 kg) 
       0.72 gal/2.73  (10 lb/4.5 kg) 
       0.29 gal/1.09 l  (4 lb/1.8 kg)  
       0.14 gal/0.53  (2 lb/0.9 kg)
    Cartiges                                                                                     On request
    Handling                                                           Handle with care. Keep containers upright. 
    Storage                                                               Store indoor, clean and dry, away from direct sunlight in a cool place below 18-30°C (65- 85ËšF). Keep from freezing. Shelf life 24 months in the original unopened containers.


    Additional Information 
     

    Documentation Application instructions and other documentation can be obtained by contacting our head office, from our local distributor or by sending email to info@sealforlife.com
    Certified staff Application of the described coating system should be carried out and inspected by certified personnel.

  • Application

    Application Instruction: Surface Preperation Steel

    General The area to be coated has to be clean, dry and free from oil, grease and dust. All contamination that could interfere with the adhesion of the coating has to be removed according to SSPCSP1.
    Preventing condensation on the subtrade Prior and during the surface preparation, the temperature of the substrate(s) must be at least 5ËšF (3ËšC) above the dew point.
    Abrasive Blasting Minimum Sa2½ (SSPC-SP10/ NACE2) .
    Recommended Surface Profile  3-4mils (75-100micron) angular profile.


    Application Instruction: Surface Preperation FBE

    General The area to be coated has to be clean, dry and free from oil, grease and dust. All contamination that could interfere with the adhesion of the coating has to be removed according to SSPC-SP1.
    Preventing Condensation on the substrate Prior and during the surface preparation, the temperature of the substrate(s) must be at least 5ËšF (3ËšC) above the dew point.
    Abrasive Blasting Sa1 (SSPC-SP7/NACE4, sweep-blasting for optimum performance.
    Recommended Surface Profile  Minimum 2mils (50micron) angular profile.


    Application Safety

    General  Read the Product Data Sheet and follow the caution statements on the Material Safety Data Sheet . Personnel who will come into contact with the product should be using appropriate protection equipment. Follow national safety guidelines. 


    Application Conditions

      Product Surface Ambien Humidity
    Optimum 130ËšF (55ËšC) 70-90ËšF (21-32ËšC) 70-90ËšF (21-32ËšC) 25-50%
    Minimum 122ËšF (50ËšC) 50ËšF (10ËšC)* -20ËšF (-30ËšC) 0%
    Maximum 140ËšF (60ËšC) 200ËšF (93ËšC) 120ËšF (49ËšC) 85%


    * If the surface to be coated is below 10ËšC (50ËšF), preheating of the substrate is recommended.
    Preheat temperatures should not exceed 93ËšC (200ËšF). Prior and during the application,
                the temperature of the substrate must be at least 3ËšC above the dew point.                                 


    Application Instruction: Plural Component Spray  

    Step1        Mix the Part A and B until uniform in consistency
    Step2 Use only heated plural component Airless equipment capable to maintain a 3:6:1 ratio in volume and 1.25 Gallon/4,73 Liter per minute output, with heated drums, insulated (heated) hoses and minimum 193bar (2800psi.) fluid pressure for Part A and 207bar (3000psi) for Part B. Use Binks 1M Airless spray-gun or equal with preferably changeable spray tips. Consult Powercrete® for specific information.
    Step3 Part A must be heated up and maintained to a temperature of 60-65ËšC (140-150ËšF) and Part B must be heated up and maintained at 38-49ËšC (100-120ËšF).
    Step4 Apply Powercrete® R-95 in the recommended DFT. Use a WFT gauge to check. Do not dilute the product.