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EPX03
Description
EPX03 is a two-component (A & B) epoxy topcoat.
Recommended Uses
Used directly on metal surfaces or over substrates primed by “EPX02 primers” to provide an abrasion, water, and chemical resistant coat. Typical uses are for structural steel, metal pipes, communication towers, sheds …etc. And in all situations where humidity, moderate chemical and wear resistance along with good aesthetic appearance are requested such as in steel furniture, medical laboratory instruments, electrical equipments, industrial instruments, …etc.
Features
• Excellent adhesion to metal and to primed substrates.
• Excellent resistance to corrosion and weathering.
• Excellent abrasion, wear, and impact resistance.
• High gloss and hidding power.
• Fast drying to touch.
• Excellent resistance to water, sea-water, salt solutions, alkalis, detergents, white spirits, aliphatics, mineral oils and fatty oils (refer to separate leaflet CHR01) .
• Easy and low cost maintenance.
• Temperature resistance up to 120°C (non immersion service).

Application Instruction
• Method of Application : Conventional spray or roller. Brush can be used for smaller areas.
• 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 : 24 hours (higher temperatures will shorten the potlife sharply).
• Thinner / Cleaner : S405 “Known as Epoxsol” is used 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. Conventional spray application will need up to 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.
• Curing :
• 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 EPX03 should not be exposed to water, chemicals, or mechanical stresses before it is fully cured.
Technical Information
• Component B :
• Color : Available in major industrial colors using color mixing instrument Azmix.
• Gloss : Hi-Gloss (ASTM-D523)
• Volume Solids : 47.8 % (ASTM-D2697)
• Flexibility : Very good
• Recommended film thickness : 50-100 microns “dry”
• Theoretical spreading rate : 9.6 m²/L at 50 microns “dry”
• Water resistance : Excellent
• Abrasian Resistance : Excellent
• 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) : 1.16 kg/L (ASTM-D1475)
• Packaging : Component A “base” : 3.6 L or 0.9 L in metal can Component B “drier:CAT10” : 0.9 L or 0.225 L in metal can
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.
STEEL:
Remove all oil, grease, wax, …etc. from the surface to be coated by thinner S405 or S100 (recommended for removing oily dirt on non-porous substrates).
Preferably blast to Sa2½ in accordance with ISO8501-1 and achieve a 50-100 µm profile. Remove all abrasive residues and dust from surface. Apply EPX03 immediately after surface preparation to prevent any contamination. Do not leave blasted steel uncoated overnight.
It is recommended to apply EPX03 on primed surfaces if superior corrosion resistance is required.
Priming: Prepare surface in accordance with application instructions for the suitable primer being used “EPX02 product range”. The primer should be left to achieve a dry to touch condition before applying the topcoat. Be sure primer is clean, dry, and free of oil, grease and any other contaminants when EPX03 is applied.
Drying Time
• Dry to Touch : 15 minutes (ASTM-D1640).
• Dry to Handle : 8 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
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. EPX03 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.
Safety:
• Well ventilated conditions should be provided during application.
• Do not breathe or inhale mist.
• Wear air-mask and avoid skin or eye contact.
Notice:

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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