BETOGARD E 1504
Protective coating of concrete and metal surfaces based on Coltar epoxy
Description of product:
BETOGARD E 1504 is a modified epoxy-based protective coating to protect metal and concrete surfaces in immersion and structures that are exposed to corrosive environments such as water, salt water and sewage.
Application and uses:
• External lining of tanks and bridges
• Water and wastewater treatment tanks
• Sewage pipes
• Pipelines (internal and external)
• Marine environments
• Oil storage tanks
• Concrete foundations and foundations
Advantages of BETOGARD E 1504:
• Pre-weighed and ready-to-mix compound
• Flexible film
• High adhesion to metal and concrete surfaces
• High abrasion resistance
• High resistance to water contaminated with chemicals
• High resistance to sea water and saline soils
• Appropriate impact resistance
• Unsuitable against strong acid or immersion in strong solvents
• Inappropriate in drinking water storage tanks
Physical and chemical properties:
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Foundation
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Coltar epoxy
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Color
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Black
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weight mixing ratio (A+B)
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0.9 : 4
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Specific gravity of the mixture with 5% by weight of diluent at 25°C
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+0.02 - 1.3
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% solids A+B plus 5% diluent
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2% +-87
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Duration of retention of performance for execution
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4 hours at 25°C and 2 hours at 32°C
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Time to lose surface adhesion
(300 microns wet layer)
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7 hours at 25°C and 50% humidity
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Time to apply the second layer at a temperature of 10-15 degrees
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24 to 72 hours
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The second layer is applied at a temperature of 15-26 degrees
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16 to 24 hours
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The second layer is applied at a temperature of 26-38 degrees
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8 to 16 hours
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Recommended dry thickness per layer (DFT)
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200-250 microns
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Wet thickness to obtain the desired dry thickness
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275 to 325 microns
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Theoretical coverage of 20 microns DFT
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27 square meters per kilogram
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The amount of coverage in the recommended thickness of DFT (assuming 15%) material waste in each layer
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3.1-2.6 square meters per liter
Or
2.0-2.4 square meters per liter
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Full curing
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7 days at 25°C
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Functional specifications of BETOGARD E 1504:
• Adhesion (PULL OFF) of concrete surface: more than 3.2 newtons/mm2, based on ASTM D 4541 method, two layers of material (DFT 400 microns). One layer of material (DFT 200 microns)
• Adhesion (CROSSCUT-KNIFE) metal surface, 5 A, based on ASTM D 3359 method, two layers of material on sandblasted metal surface (DFT 400 microns)
• Impact resistance: without damage and cracks, based on ASTM D 2794 method, two layers on the sandblasted metal surface, (DFT 400 microns)
• SALT FOG: without causing looseness, rust and blisters, according to ASTM B 117 method, 1000 hours, two layers on the sandblasted metal surface, (DFT 400 microns)
• Water content: less than 2%, based on ASTM D 570
• Resistance to 5% NAOH alkali load: without rusting, blistering and separation from the surface, according to ISIRI 4042, two layers on the sandblasted metal surface, (DFT 400 microns)
• Resistance to 5% H2SO4 acid: without rusting, blistering and separation, according to ISIRI 4042, two layers on the sandblasted metal surface, (DFT 400 microns)
How to use:
The surface must be dry, clean, healthy and free from any contamination. Dust, rust and waste materials should be removed from the surface to improve adhesion. The minimum surface preparation is as follows:
1. Metal surface: In immersion mode, in order to obtain maximum adhesion and protection, the metal surface should be removed and cleaned by Sand Slast in the amount of 50 to 70 microns, according to the method (SSPC-10-NACE2). Sharp points, welding places or sharp corners should be rounded and smoothed. For the applications of the immersion suit, sandblasting according to (SSPC-SP-6, NACE3) with a minimum layering of 50 to 75 microns is suggested.
2. Aluminum and galvanized surfaces: 50 micron coating.
3. Mortar and concrete: at least 28 days after processing and the surfaces must be clean, dry and healthy. Any curing compound, mold oil, salts and loose extra materials should be removed from the surface.
4. Wood: remove any excess coating and make the surface of the wood rough.
Mixing:
BETOGARD E 1504 is presented in pre-weighed containers containing two components A and B. First, mix component a well and then add component B completely to component A and mix for 3 minutes. After this step, if needed, add diluent.
Note:
Components A and B should be stored at a temperature of 25 degrees Celsius before mixing.
Performance:
BETOGARD E 1504 can be applied by brush, air pump and airless pump. The recommended surface temperature is 10 to 35 degrees Celsius and the surface temperature should be at least 3 degrees Celsius higher than the dew point. It is recommended in two layers for immersion or invasive environments. In this case, it is suitable to use an airless pump.
The amount of diluent used is suggested as follows:
• Airless spray: 4 to 7 percent
• Air spray: 5 to 8 percent
• Brush: 4 to 8 percent
Packaging:
BETOGARD E 1504 is available in 4.9 and 22.05 kg sets.
• A=4 Kg and B=0.9 Kg
• A=18 Kg and B=4.05 Kg
Diluent: 4 or 20 liter gallons
Storage:
Containers should be stored in a dry, cool or well-ventilated place and away from heat or sparks.
Shelf life:
It can be used for up to 12 months if it is kept in the recommended conditions in the original packaging.
Safety:
BETOGARD E 1504 should be kept away from heat and direct flame. Avoid contact with clothing and eyes, and in case of skin contact, wash with soap and water. At the time of mixing, running and drying, use proper ventilation to prevent the increase in the concentration of produced vapors.
Technical services:
The technical department of Rayehe Beton Sabz Company (technical and specialized concrete clinic of Iran) is ready to cooperate and provide services for the correct use of its materials.