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| | Drying times can be affected by many factors such as temperature, ventilation and coat
thickness. Higher temperatures will shorten the drying times. | | |
| EPX37 is a high solid epoxy coating used for lining interior steel and concrete
tanks, valves and pipes. Also is used as protective coating in corrosive
environments, ideal for coating/lining industrial storage and process tanks
containing fuel, oil and petroleum products. | | |
| • Tank lining coating for oil and fuel.
• Low VOC contents.
• Excellent abrasion resistance.
• Excellent adhesion on metal and concrete surfaces.
• Applied in two coats, does not require any primer or topcoat when blasting is
applied.
• Easy and low-cost maintenance due its smooth surface and its high dust
resistance.
• Excellent resistance to water, sea water, waste water, salt solutions,
detergents, white spirits, aliphatics, mineral oils, crude oil, fuel oils, and
gasoline. | | |
| | • Method of Application : | Airless spray, brush or roller | | • Mixing Ratio : | (by volume) 2.7 to 0.9 (A to B) | | • Mixing : | The individual components of EPX37 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 pot
life. Material that has begun to set must be discarded.
| | • Pot life : | (20° C) 30 minutes (higher temperatures will shorten the pot life
sharply). | | • Thinner / Cleaner : | No dilution is required | | • 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) cannot be
guaranteed unless a temperature of at least 10 °C is maintained for the
mixture and the substrate until complete curing. Temperature of
EPX37-2E-05/2023
substrate should be at least 3°C above dew point to avoid moisture
condensation during application.
• Coated surfaces by EPX37 should not be exposed to water, chemicals,
or mechanical stresses before it is fully cured. |
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| | • Component B : | CAT20 | | • Color : | Off White | | • Gloss : | Semi-Gloss (ASTM-D1523) | | • Volume Solids : | 80 % (ASTM-D2697) | | • VOC : | 160 g/L (ASTM-D3960) | | • Flexibility : | Very good | | • Temperature Resistance : | Up to 90°C. | | • Recommended film thickness : | 250 microns “dry” | | • Theoretical spreading rate : | 3.2m²/L at 250 microns “dry”. | | • Water resistance : | Excellent | | • Abrasian Resistance : | Excellent | | • Chemical Resistance : | Very good | | • Solvent Resistance : | Very good | | • Number of Coats : | 2 | | • Specific Gravity (mixed) : | 1.28 kg/L (ASTM-D1475) | | • Packaging : | Component A “base” 2.7 L in US Gallon
Component B “drier” 0.9 L in US Quart (CAT20) |
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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 (Epoxsol).
Non-immersed: Abrasive blast to Sa2½, in accordance with ISO8501-1,
and achieve a 50-100 microns 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 ?m profile; Old steel to Sa3 in
accordance with ISO8501-1. Remove all abrasive residues and dust from
surface.
Apply EPX37 as soon as possible 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 EPX37 is
not taking action immediately after blasting.
Priming (for non-immersion service where high resistance to corrosion is
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 EPX37 is applied.
CONCRETE:
Remove fins and other protrusions by stoning, sanding or grinding.
New concrete: Must be cured at least 28 days at 21°C and 50% RH, or
equivalent time.
Old concrete: 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 EPX37.
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| | • 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. EPX37
is considered under 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.
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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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