SIGMAZINC 102 4 pages DESCRIPTION October 2009 Revision of March 2007 two component polyamide cured zinc epoxy primer PRINCIPAL CHARACTERISTICS – – – – economical zinc epoxy primer for various paint systems good corrosion prevention properties quick drying, can be overcoated after a short interval can serve as a holding primer for various maintenance systems for a total repair – the superimposed system must be unsaponiable – complies with SSPC-Paint 20 COLOURS AND GLOSS grey - at BASIC DATA AT 20°C (1 g/cm³ = 8.25 lb/US gal; 1 m²/l = 40.7 ft²/US gal) (data for mixed product) Mass density Volume solids VOC (supplied) 2.1 g/cm³ 55 ± 2% max. 193 g/kg (Directive 1999/13/EC, SED) max. 410 g/l (approx. 3.4 lb/gal) 25 - 50 µm depending on blasting prole; dfts of more then 50 µm are not recommended 22 m²/l for 25 µm * 15 min. at 20°C * min. 6 hours * max. several months * 7 days Recommended dry lm thickness Theoretical spreading rate Touch dry after Overcoating interval Curing time (data for components) Shelf life (cool and dry place) at least 12 months RECOMMENDED SUBSTRATE CONDITIONS AND TEMPERATURES – steel; blast cleaned to ISO-Sa2½, blasting prole 40 - 70 µm – substrate temperature should be above 10°C and at least 3°C above dew point INSTRUCTIONS FOR USE mixing ratio by volume: base to hardener 78 : 22 – the temperature of the mixed base and hardener should preferably be above 15°C, otherwise extra solvent may be required to obtain application viscosity – too much solvent results in reduced sag resistance and slower cure – thinner should be added after mixing the components Induction time none Pot life 24 hours at 20°C, 6 hours at 35°C page 1/4

SIGMAZINC 102 October 2009 AIRLESS SPRAY Recommended thinner Volume of thinner Nozzle orice Nozzle pressure Thinner 91-92 0 - 20%, depending on required thickness and application conditions approx. 0.43 - 0.48 mm (= 0.017 - 0.019 in) 15 MPa (= approx. 150 bar; 2130 p.s.i.) AIR SPRAY Recommended thinner Volume of thinner Nozzle orice Nozzle pressure Thinner 91-92 0 - 20%, depending on required thickness and application conditions 1.8 - 2.2 mm 0.3 - 0.6 MPa (= approx. 3 - 6 bar; 43 - 85 p.s.i.) BRUSH/ROLLER Recommended thinner Volume of thinner Thinner 91-92 0 - 5% CLEANING SOLVENT Thinner 90-53...

SIGMAZINC 102 October 2009 Overcoating table for dft 25 - 50 µm substrate temperature 5°C 10°C 20°C 30°C 40°C minimum interval 24 hours 8 hours 6 hours 4 hours 3 hours maximum interval interior several months when free from zinc salts and contamination maximum interval exterior 14 days in clean conditions – zinc rich primers can form zinc salts on the surface; preferably they should not be weathered for long periods before overcoating – an interval of several months can be allowed under clean interior exposure conditions – in industrial or marine conditions or if a long recoat interval is required,...

SIGMAZINC 102 October 2009 REFERENCES Explanation to product data sheets Safety indications Safety in conned spaces and health safety Explosion hazard - toxic hazard Safe working in conned spaces Directives for ventilation practice Cleaning of steel and removal of rust see information sheet 1411 see information sheet 1430 see information sheet 1431 see information sheet 1433 see information sheet 1434 see information sheet 1490 LIMITATION OF LIABILITY The information in this data sheet is based upon laboratory tests we believe to be accurate and is intended for guidance only. All recommendations...