PRODUCT DATA SHEET DESCRIPTION:

Transcription

1 DESCRIPTION: is a range of surface coatings based on State of the Art epoxy chemistry. is similar to SP-2888 R.G. but has high temperature operating capability. The cathodic disbonding resistance of is excellent at temperatures up to 95C (203F). is available in Brush Grade and Spray Grade. is also available in Cartridges for coating repairs. ADVANTAGES: 100% Solids - No VOCs. High build single coat application. Isocyanate free. Excellent resistance to high temperature cathodic disbonding at temperatures up to 95 C (203 F) Excellent adhesion to grit blasted steel surfaces, Fusion Bond Epoxy (FBE), liquid epoxy, and urethane coatings. USES: Internal lining for pipelines. Exterior coating for pipelines in buried or immersed service. Coating of pipe, valves and fittings. Rehabilitation of existing pipelines. Girth weld coatings. Tank linings. APPLICATION: Spray Grade: Graco Hydra-Cat (Tip Size: ) Brush Grade: Brush or Roller Cartridge: Manual Dispenser CLEANING MATERIALS: SP-100 Equipment Wash SP-110 Tool Cleaner SP-120 Internal Storage Lubricant Page 1 of 6

2 SURFACE PREPARATION: Steel Substrate: Cleanliness : Near White Standards : NACE 2, Sa 2½ (Swedish Scale, ISO ) : SSPC SP-10 (Steel Structures Painting Council Profile : 62.5 microns minimum to 125 microns maximum (2.5 mils to 5.0 mils) FBE: Profile : 6.25 microns (2.5 mils) minimum Polyolefin: Profile : 100 microns (4.0 mils) minimum MIXING RATIO: Brush Grade and Spray Grade, By Volume: 3 Parts Base to 1 Part Hardener. Cartridge, By Volume: 2 Parts Base to 1 Part Hardener. RECOMMENDED FILM THICKNESS: Pipelines: Wet: 0.50 mm minimum to 1.25 mm maximum (20 mils to 50 mils) Dry: 0.50 mm minimum to 1.25 mm maximum (20 mils to 50 mils) Tank Lining: 0.75 to 1.50 mm (30 to 60 mils) to 1.75 mm (50 to 70 mils) Tank bottom and 1.8 to 2.4 m (6 to 8 ft.) up the tank wall. Depends upon application; consult with SPC Representative. RE-COAT 25 C (77 F) - Maximum: C (212 F) - Maximum: 5 Minutes Sweep blasting of the surface is required if the maximum re-coat interval is exceeded. Small areas 316 sq. cm. ( 49 sq. in.) may be sanded using a medium grit (80-100) carborundum cloth. All dust from the sanding or blast roughening must be removed from the surface prior to the application of the coating. Page 2 of 6

3 HANDLING PROPERTIES: Pot Life [100 gm (3.5 oz) 25C (77F)] minutes Dry Time (ASTM D1640) [0.75 mm (30 mils) coating 25 C (77 F)] Tack Free Time minutes Dry Hard Time hours Ambient Temperature... Substrate Temperature... Storage / Shelf Life C to 100C (-13F to 212F) The acceptable substrate (metal surface) temperature range for the application of SP-3888 is 10C (50F) to 100C (212F). Preheating of the substrate is required if the surface to be coated is below 10C (50F). The substrate temperature must be a minimum of 3C (5F) above the dew point temperature before proceeding with the coating operation. Refer to the attached Curing Table. Store in a cool, dry, well-ventilated area at temperatures between 5C (41F) and 40C (104F). Keep the lids sealed. The Shelf Life is a maximum of 24 months in unopened containers. LIQUID PROPERTIES: BASE HARDENER Appearance... Grey Viscous Liquid. Light Amber Liquid. Solids Content (%) Specific Gravity (ASTM D1475) Specific Gravity (ASTM D1475)... Base & Hardener Mixed: Coverage (Theoretical)... Base & Hardener Mixed: 39.0 m 2 /Litre/25 microns [1604 ft 2 /U.S. Gallon/mil] Page 3 of 6

4 PHYSICAL / MECHANICAL / ELECTRICAL PROPERTIES: Adhesion to Steel: Dry Adhesion (Pull-off Strength) [MPa (psi)] (ASTM D A4) (Self-Alignment Adhesion Tester, Type IV) [25 C (77 F)]... >20 (>3000) Wet Adhesion (Hot Water Soak) (CSA-Z , Clause 12.14, 120 Days) [75 C 3 C (167 F 5 F)]... Rating #1 Cathodic Disbonding Test [Average Radius (mm)] [CSA-Z , Clause 12.8, System 1A, 28 65C (149F)] Cathodic Disbonding Test [Average Radius (mm)] [CSA-Z , Clause 12.8, System 1A, 28 95C (203F)] Dielectric Strength (volt/10-3 in) (ASTM D149) Dielectric Constant (60 cycles) (ASTM D150) Flexibility ( PPD) (CSA-Z , Clause 12.11) [25C (77F)] Hardness (Shore D) (ASTM D ) [25C (77F)] Heat Resistance [C (F)] (383) Impact Strength [Joules (ft-lbf)] (ASTM D256) [25C (77F)] (2.21) Salt Spray Resistance (h) (ASTM B117) Volume Resistivity (ohm-cm) (ASTM D257) x Water Vapour Permeability (perm-in) (ASTM D1434) Water Absorption (%, 24 h, r.t.) (ASTM D570) Page 4 of 6

5 CHEMICAL RESISTANCE, 90 DAYS [25C (77F)]: Nitric Acid, 10% solution... No change observed. Sulphuric Acid, 5% solution... No change observed. Acetic Acid, 5% solution... No change observed. Sodium Hydroxide, 10% solution... No change observed. Sodium Chloride, 10% solution... No change observed. Toluene... No change observed. Ethyl Acetate... No change observed. Ethanol, 50% solution... No change observed. Mineral Oil... No change observed. 30% Xylene, 30% Toluol, 40% Benzene... No change observed. SAFETY: Read the Material Safety Data Sheets before use. NOTE: All epoxy coatings will change colour, lose gloss and chalk on exterior exposure. However, the protective properties of the material will not be affected. REFER TO COLOUR CHART AT END OF PRODUCT DATA SHEET. EFFECTIVE DATE: January 20, 2012 Page 5 of 6

6 BRUSH GRADE COATING KITS COLOUR CHART Match Base & Hardener Based on Colour Coded Dots Below. Mixing Ratio By Volume: 3 Parts Base to 1 Part Hardener. VOLUME SIZE COLOUR BASE HARDENER 0.50 Litres PINK Litres Litres 0.75 Litres FL GREEN Litres Litres 0.90 Litres FL YELLOW Litres Litres 1.00 Litres RED Litres Litres 1.25 Litres PURPLE Litres Litres 1.50 Litres YELLOW Litres Litres 1.75 Litres ORANGE Litres Litres 2.00 Litres BLACK Litres Litres 2.25 Litres BLUE Litres Litres 2.50 Litres GREEN Litres Litres 2.75 Litres WHITE Litres Litres Note: FL = Fluorescent SPC / PDS_SP-3888_01_20_2012.doc Page 6 of 6