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| | EPX17 is a two-component (A & B) water-based epoxy. | | |
| | Used as a primer/ coat for concrete surfaces. Suitable to be applied even on damp concrete. It provides a coat highly resistant to water and light chemicals. Typical uses are in chemical and pharmaceutical plants, food & beverage industries, hospitals, laboratories, confined areas, and in areas where no solvents are allowed. | | |
| • Excellent adhesion to concrete and to low pourosity surfaces.
• Penetrates deeply into concrete surfaces.
• It can be applied on damp substrates and has excellent barrier properties making it suitable for use as primer in epoxy flooring systems (EPX16, EPX26, EPX06) and in roofcoating (WT16).
• Improves concrete properties when coated directly on concrete surfaces.
• Excellent resistance to water, sea water, salt solutions, alkalis, detergents, white spirits, aliphatics, mineral oils and fatty oils (A separate leaflet CHR01 is available).
• No harmful vapors and scents are present (makes it easy to use and to apply even in confined areas).
• Can be coated with a wide range of topcoats (epoxy, urethane, alkyd, latex).
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| | • Method of Application : | Airless spray, brush or roller | | • Mixing Ratio : | (by volume):
3.6 to 0.55 (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 : | 2 hours (higher temperatures will shorten the potlife sharply). | | • Thinner / Cleaner : | Water 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.
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 : | | | • 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.
• Coated surfaces by EPX17 should not be exposed to water, chemicals, or mechanical stresses before it is fully cured
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| | • Component B : | CAT71 | | • Color : | White | | • Gloss : | Flat (ASTM-D523) | | • Volume Solids : | 66 % (ASTM-D2697) | | • Flexibility : | Very good | | • Recommended film thickness : | 50-100 microns “dry” | | • Theoretical spreading rate : | 13.2 m²/L at 50 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) : | 1.72 kg/L (ASTM-D1475) | | • Packaging : | Component A : 3.6 L in metal can
Component B “CAT71” : 0.55 L in metal can
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| Well-prepared-surface is an essential condition of coating success. 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. Fill small holes or voids with STOP200 before applying EPX17.
New concrete:
a- EPX17 primer is applied when concrete is cured for at least 14 days at 21?C and 70% RH.
b- Or EPX27 primer is used after 6 to 24 hours of concrete application.
Note: EPX17 can be applied on tiles and on low porous substrates after roughing the surface.
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| | • Dry to Touch : | 1½ hours (ASTM-D1640). | | • Dry to Handle : | 36 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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| • Water based epoxy must not be allowed to be stored in untreated metals that are likely to corrode. Containers must be kept tightly closed. Exposure to strong heat and frost must be avoided.
• Shelf life is two years from packing date in unopened original containers at 10 to 40°C. Containers should be kept tightly closed.
Safety:
Avoid skin or eye contact. Prolonged contact may cause irritation of the skin and mucous membranes.
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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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