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| Description/Uses: | A two component, solvent free polyurethane coating material designed for brush
application to pipeline girth welds to effect complete corrosion protection in water
immersion, soil burial or atmospheric exposure conditions. Rapid drying and curing characteristics, allowing early completion of coating to
recommended film thickness (see below). | |
| Color: | Gray, red, black, cream |
| Volume Solids: |
100% |
| Flash Point: |
DIN 51758: Base: 200¡ãC (390¡ãF)
Activator: 200¡ãC (390¡ãF) |
| Temperature: |
Application: Preferably above 0¡ãC (32¡ãF) surfaces free from ice/condensation
Service: Immersion 0¡ãC to 70¡ãC (32¡ãF to 158¡ãF) depending on solution
Dry: -20¡ãC to 120¡ãC (-4¡ãF to 248¡ãF) continuous |
| Bond Strength: |
Steel: DIN 53232 (Primed and unprimed steel) 15 N/mm_
DIN 53151 (Cross cut) Glass G1 |
| Water Vapor
Permeability: |
Steel: DIN 52615 .005 metric/perm cm |
| Drying Times at 20¡ãC (68¡ãF): |
Surface: 30-45 minutes
Hard: 4 hours |
| Recommended
Thickness: |
1.0-1.5 mm (two coats) depending on service conditions |
| Coverage: |
Theoretical: 1.0 liter at 1 mm thickness covers 1 m_
Practical: Spreading rate will be lower depending on application conditions and
coating operation, hence allowances for wastage should be considered |
| Mix Ratio: |
3:1 by volume |
| Pot Life: |
Approximately 8-10 minutes at 25¡ãC (77¡ãF) |
| Shelf Life: |
12 months |
| Ultimate Cure: |
14 days at 25¡ãC (77¡ãF), at lower temperatures the curing rate will be slower |
| Shrinkage: |
Negligible |
| Impact: |
ASTM 2794-69/14: 20 NM |
| Tensile Strength: |
DIN 53504: 20 N/mm2 |
| Elongation: |
ASTM D2370: 35% |
| Shore D Hardness: |
80 approximately |
| Flexibility: |
British Gas PS/CW6: Pass 2% strain at 5¡ãC (41¡ãF) |
| Cathodic Disbondment: |
British Gas GBE/CW6: 28 days at 20¡ãC (68¡ãF) - 1500 mv (calomel)
Thickness 1.5 mm DFT - Pass |
| Cleaners: |
Acothane 380 Solvent or Xylene is recommended |
| Surface Preparation |
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| Steel: |
Ensure surfaces are clean, dry and free from grease, oil, salts and other
contaminants. Grit blast to minimum BS7079 Standard Sa 2.5, to give a
recommended surface profile depth of 75-100 microns. |
| Overlap Area: |
Remove any loose material to establish a firm edge. Feather sound coating
(inducing surface roughness) for a distance of 25-50 mm to remove gloss, surface
contaminants, etc. by suitable method (sweep blasting, abrasive disking, etc.). |
| Temperature and RH
Parameters during
Application: |
Normal application requires relative humidity below 80%. To avoid risk of
condensation, application should be done only when the temperature of the steel
surface is at least 3¡ãC (5¡ãF) higher than the dew point. Application at temperatures
below 1¡ãC (33¡ãF) must be watched carefully since the possible presence of ice in the
pores of the surface could result in poor adhesion and reduced corrosion protection. |
| Application Method: |
Brush: Activator must be added to base and thoroughly mixed ensuring an even mix
throughout the pot. Care must be taken to avoid unmixed material being left on the
sides and bottom of the can. Decanting mixed material into a plastic container and
further mixing is recommended. Plastic container may be recovered for further use
when coating on walls has cured. Mixed material must be used within 8-10 minutes. |
| Health and Safety: |
Refer to Material Safety Data Sheet No. A5 |
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** Information contained in this publication is accurate to the best knowledge and belief of Lonestar Specialties, LLC Any information or advice obtained from Lonestar Specialties, LLC is also given in good faith and it remains at all times the responsibility of the customer to ensure that the materials are suitable for the purpose intended. Due to a policy of continued development work, and according to the availability of raw materials, products may differ in detail from those described and are offered subject to the Company's conditions of sale.
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