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| | EPX19 is a primer/coat based on two-component (A & B) water-based coal tar epoxy. | | |
| • As a primer/coat used a barrier for the protection of concrete substrates from water, dissolved salts, waste water, oils, and greases.
• Ideal for use in laundries and dyeing industries, bridge ground beams, under the central heating systems, underground surfaces, manholes, open or closed concrete reservoirs, sewage treatment plants, water-carrying pipes and tunnels (except potable water). | | |
| • Excellent adhesion to concrete with excellent flexibility.
• Excellent resistance to water, sea-water, waste water, salt solutions, detergents, mineral oils, and greases (A separate leaflet CHR01 is available).
• Easy to apply even on damp concrete.
• No harmful vapors and scents are present (makes it suitable for use in confined areas).
• Suitable for water immersion service. | | |
| | • Method of Application : | Airless spray or roller | | • Mixing Ratio : | (by volume)
3.6 to 0.55 (A to B), Water is added after mixing | | • Mixing : | The individual components of EPX19 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 until uniform consistency is achieved; “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 : | 4 hours (higher temperatures will shorten the Potlife sharply). | | • Thinner / Cleaner : | Water is used for thinning or cleaning. Mixing ratio with water 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 water.The higher the temperature the less the needed dilution. Due to potlife limitations, clean all mixing and applying tools by water immediately after application is completed. | | • Curing : | • 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. | | • Note : | 1- 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.
2- Coated surfaces by EPX19 should not be exposed to water, chemicals, or mechanical stresses before it is fully cured. |
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| | • Component B : | CAT71 | | • Color : | Black | | • Gloss : | Flat (ASTM-D523) | | • Volume Solids : | 77 % (ASTM-D2697) | | • Flexibility : | Excellent | | • Recommended film thickness : | 180 microns “dry” | | • Theoretical spreading rate : | 4.2 m²/L at 180 microns “dry” | | • Water resistance : | Excellent | | • Abrasian Resistance : | Very good | | • Chemical Resistance : | Good (A separate leaflet CHR01 is available) | | • Solvent Resistance : | Fair (A separate leaflet CHR01 is available) | | • Number of Coats : | 1 | | • Specific Gravity (mixed) : | 1.65 kg/L (ASTM-D1475) | | • Packaging : | Component A “base” 3.6 L in US Gallon
Component B “drier” 0.55 L in US Quart |
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| Well-prepared-surfaces is an essential condition of coating successfulness. In general, surface must be clean, undamaged and free of all contaminants prior to coating.
CONCRETE:
Old Concrete: remove fins and other protrusions by stoning, sanding or grinding. Abrasive blasting is best to remove all previous coatings, form oils, laitance and other foreign matter.
New concrete: must be cured at least 28 days at 21?C and 70% RH, or equivalent time. Fill small holes or voids with STOP200 before applying EPX19. | | |
| | • Dry to Touch : | 2 hours (ASTM-D1640). | | • Dry to Handle : | 24 hours “minimum recoat time”, 2 days “maximum recoat time” (ASTM-D1640). | | • Fully Cured : | 7 days. |
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| • Epoxy system, in general, has to be kept in a cool and well ventilated place, protected from heat and direct sunlight.
• Shelf life is one year 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 | |
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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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