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| | EPX24 is a two-component (A & B) high solid coal tar epoxy. | | |
| 1- As a protective coat from corrosion and mechanical wear used in underground and under water structures for immersed or buried fresh and salt water-carrying pipes, tanks, marine structures, ships, power plants, oil production and refining plants, cooling towers and sewage treatment plants, etc.
2- As a lining for immersion in crude oil, diesel oil, salt solutions, water (non-potable), salt water and waste water.
3- Useful as primer / topcoat on asphalt or concrete garage floors. Can be topcoated with regular 2k floor coating. | | |
| 1- Excellent corrosion resistance.
2- Waterproof coating suitable for use over concrete, steel, aluminum, and wooden structures exposed to corrosive environments.
3- Excellent impact and abrasion resistance.
4- Permanent flexibility with outstanding toughness, offers considerably more flexibility than regular epoxies.
5- Does not require any primer or topcoat when blasting is applied.
6- Tank lining for immersion or non-immersion service. For immersion service and severe environments a total dry film thickness of 350 microns is required. This can be achieved as a two-coat application.
7- Excellent resistance to water, sea-water, waste water, salt solutions, mild mineral acids, alkalis, detergents, white spirits, aliphatics, mineral oils, fatty oils, diesel oil, crude oil, fuels, and a wide range of industrial chemicals (A separate leaflet CHR01 is available). | | |
| | • Method of Application : | Airless spray, brush or roller. | | • Mixing Ratio : | (by volume)
4 to 1 (A to B). | | • Mixing : | The individual components of EPX24 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 : | 3 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 or roller 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. | | • 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 recoat time". Any delay in applying interval coats may request sanding the surface of the previous coat to insure good adhesion.
2- Coated surfaces by EPX24 should not be exposed to water, chemicals, or mechanical stresses before it is fully cured. |
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| | • Component B : | CAT21 | | • Color : | Black | | • Gloss : | Flat (ASTM-D523) | | • Volume Solids : | 84 % (ASTM-D2697) | | • Flexibility : | Excellent | | • Recommended film thickness : | 175-350 microns “dry” | | • Theoretical spreading rate : | 4.8 m²/L at 175 microns “dry” | | • Water resistance : | Excellent | | • Abrasian Resistance : | Excellent | | • Chemical Resistance : | Excellent (A separate leaflet CHR01 is available) | | • Solvent Resistance : | Very good (A separate leaflet CHR01 is available) | | • Number of Coats : | 1-2 | | • Specific Gravity (mixed) : | 1.70 kg/L (ASTM-D1475) | | • Packaging : | Component A “base” 3.6 L in US Gallon
Component B “drier” 0.9 L in US Quart |
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| Well-prepared-surfaces is an essential condition of coating successfulness. 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).
Non-immersed : Abrasive blast to Sa2½ in accordance with ISO8501-1 and achieve a 50-100 µm profile. Remove all abrasive residues and dust from surface.
Immersed: Abrasive blast to Sa2½, a near white metal finish in accordance with ISO8501-1, and achieve a 50-100 µm profile. Old steel to Sa3 in accordance with ISO8501-1. Remove all abrasive residues and dust from surface.
Apply EPX24 immediately after surface preparation to prevent any contamination. Do not leave blasted steel uncoated over night. A thin coat of wash primer “WP” is highly recommended if treatment with EPX24 is not taking action immediately after blasting.
Priming (If required): Prepare surface in accordance with application instructions for the suitable primer being used (WP). Be sure primer is clean, dry, and free of oil, grease and any other contaminants when EPX24 is applied.
ALUMINUM:
Aluminum surfaces should be sanded to remove all contaminates.
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. Fill small holes or voids with STOP200 before applying EPX24. New concrete must be cured at least 28 days at 21?C and 50% RH, or equivalent time.
For damp surfaces or in areas where high relative humidity is present use EPX19 and / or EPX09 instead of EPX24 to ensure better adhesion to the substrate.
WOOD:
Wooden surfaces require the removal of all coatings by rough sanding. | | |
| | • 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. | | • Note : | Drying times can be affected by many factors such as temperature, ventilation and coat thickness. Higher temperatures will shorten the drying times. |
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| Epoxy system, in general, especially component B, has to be kept in a cool and well ventilated place, protected from heat and direct sunlight. EPX24 is classified under high flammable materials.
Shelf life is one year from packing date in unopened original containers at 10 to 40°C. Containers should be kept tightly closed.
Safety:
1- Well ventilated conditions should be provided during application.
2- Do not breathe or inhale mist.
3- 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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