Description
SIGMACOVER 256 SIGMA PROTECTIVE AND MARINE COATINGS
Hellog Energy is a supplier and distributor of Sigma Marine coatings in Nigeria. OUR SIGMACOVER 256 SIGMA PROTECTIVE AND MARINE COATINGS is a two-component, high-build, polyamide-cured recoatable zinc phosphate epoxy primer used primarily as primer for pipe coatings, infrastructure, chemical and petrochemical plants, offshores, marine dry dock, inland marine constructions, marine new-builds and sea stores, colors are cream, egg shell, pink other colors on request.
PRODUCT CHARACTERISTICS SIGMACOVER 256 SIGMA PROTECTIVE AND MARINE COATINGS
- General-purpose epoxy primer or build coat in protective coating systems, for steel and concrete structures in atmospheric exposure
- Suitable for atmospheric industrial and marine applications
- Can be recoated with various two-component and conventional coatings, even after long weathering periods
- Lead- and chromate free
- Excellent rust preventing properties in industrial or coastal atmospheres
- Tough, with long-term flexibility
- Cures even at temperatures down to -10°C (14°F)
- Good adhesion to steel, galvanized steel and aged epoxy coatings
- Easy application, both by airless spray and brush
- Can be used as epoxy primer/finish (for dry internal areas)
RECOMMENDED SUBSTRATE CONDITIONS AND TEMPERATURES
- Substrate conditions
- Steel; blast cleaned to ISO-Sa21⁄2, blasting profile 40 – 70 μm (1.6 – 2.8 mils)
- Shop primed steel; pretreated to SPSS-Pt3 / SSPC-SP3
- Galvanized steel must be sweep blasted until an even flat appearance (only for internal dry exposure conditions)
- Aged suitable coating must be dry and free from any contamination
- Substrate temperature
- Substrate temperature during application and curing down to -10°C (14°F) is acceptable; provided the substrate is free from ice and dry
- Substrate temperature during application should be at least 3°C (5°F) above dew point
- Relative humidity during application and curing should not exceed 95%
INSTRUCTIONS FOR USE
Mixing ratio by volume: base to hardener 82:18
- The temperature of the mixed base and hardener should preferably be above 15°C (59°F), otherwise extra thinner may be required to obtain application viscosity
- Adding too much thinner results in reduced sag resistance and slower cure
- Thinner should be added after mixing the components
Air spray
Recommended thinner
THINNER 91-92
Volume of thinner; 10 – 15%, depending on required thickness and application conditions
Nozzle orifice; 1.5 – 3.0 mm (approx. 0.060 – 0.110 in)
Pot life; 8 hours at 20°C (68°F)
Note: See ADDITIONAL DATA – Pot life
Contact Our Coatings Team for a free quote
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