A two-component (A & B) aluminium epoxy primer/coat.
Recommended Uses
Used mainly as a protective barrier coat on marginally prepared steel surfaces (blast cleaning may not be feasable), and also on existing sound coating. It forms a hard barrier coat to moisture and water that is resistant to rust formation, corrosion, and weathering. Typical uses are for structural steel, industrial plants, pipes, tanks, and in all marine steel superstructures.
• Excellent resistance to rust, corrosion, and weathering.
• Self-priming, does not require any primer or topcoat.
• Suitable to be applied on steel surfaces where blast cleaning may not be feasable.
• Can be applied over existing and firmly adhering sound coating.
• Can be coated with a wide range of topcoats (epoxy, urethane, alkyd, latex).
• Resists continuos temperature service up to 120°C and intermitent service up to 150°C "non immersion service".
Application Instruction
• Method of Application : Airless or conventional spray, brush or roller.
• Mixing Ratio : by volume) 4 to 1 (A to B).
• Mixing : The individual components should be thoroughly stirred before the two are mixed together. Combine components (A & B) in supplied proportions and mix thoroughly using a slow speed mixer for at least 3 minutes to achieve uniform consistency; “DO NOT USE HIGH SPEED MIXER”. Never mix more material than can be used within potlife. Material that has begun to set must be discarded.
• Pot life : 20°C) 24 hours (higher temperatures will shorten the potlife sharply).
• Thinner / Cleaner : S405 “Known as Epoxsol” is uesd for thinning or cleaning. Mixing ratio with thinner depends mainly on temperature and on method of application. For example: At 20°C airless spray application will need no dilution. Other methods of application will need approx 15% by volume thinner S405. The higher the temperature the less the needed dilution. Due to potlife limitations, clean all mixing and applying tools by thinner S405 immediately after application is completed.
• Note : • When recoating, a special attention should be given toward drying times “minimum & maximum recoating time”. Any delay in applying interval coats may request sanding the surface of the previous coat to insure good adhesion. • The reaction between the epoxy and its curing agent (A & B) can not be guaranteed unless a temperature of at least 10°C is maintained for the mixture and the substrate until complete curing. Temperature of substrate should be at least 3°C above dew point to avoid moisture condensation during application. • Coated surface by EPX12 ALU should not be exposed to water, chemicals, or mechanical stresses before it is fully cured.
Technical Information
• Color : Aluminium
• Gloss : Matt (ASTM D-523).
• Volume Solids : 45.1% (ASTM-D2687)
• Flexibility : Good
• Recommended film thickness : 75-150 microns “dry”
• Theoretical spreading rate : 4.5 m²/L at 100 microns "dry"
• Water resistance : Excellent
• Abrasian Resistance : Fair
• Chemical Resistance : Good (A separate leaflet CHR01 is available)
• Solvent Resistance : Fair (A separate leaflet CHR01 is available)
• Number of Coats : 1-2
• Specific Gravity (mixed) : 1.07 kg/L (ASTM-D1475).
• Packaging : Component A “base” : 3.6 L in metal can Component B “drier: CAT10 “ : 0.9 L in metal can.
• Weather Resistance : Excellent
Surface Preparation
Well-prepared-surface is an essential condition of coating success. In general, surface must be clean, dry, undamaged and free of all contaminants prior to coating.
Remove all oil, grease, wax…etc. from the surface to be coated by thinner S405.
Preferably, clean to St2 in accordance with ISO8501-1, abrasive blasting is not required. Apply EPX12 ALU immediately after surface preparation to prevent any contamination. Do not leave blasted steel uncoated overnight. A thin coat of wash primer “WP” is highly recommended if treatment with EPX12 ALU is not taking action immediately after blasting.
Drying Time
• Dry to Touch : 1 hour (ASTM -D1640).
• Dry to Handle : 10 hours “minimum recoat time”. 24 hours “maximum recoat time" (ASTM -D1640).
• Fully Cured : 7 days.
• Note : Drying times can be affected by many factors such as temperature, ventilation and coat thickness. Higher temperatures will shorten the drying times.
Storing Conditions
• Epoxy system, in general, especially component B, has to be kept in a cool and well ventilated place, protected from heat and direct sunlight. EPX12 ALU is classified as being highly flammable materials.
• Shelf life is two years from packing date in unopened original containers at 10 to 40°C. Containers should be kept tightly closed.
• Well ventilated conditions should be provided during application.
• Do not breathe or inhale mist.
• Wear air-mask and avoid skin or eye contact.

information in this data sheet and in all our data sheets are given to the best of our knowledge based on laboratory testing and practical experience. Final results depend on following instructions and on consumer skill. Our responsibility is limited to providing products that Conform to samples and specimens provided by us. Due to technical needs, we reserve the right to change any given specification without notice.

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