BETOGARD-125
A TWO PART FLEXIBLE CEMENTITIOUS WATERPROOFING MEMBRANE FOR CONCRETE & MORTAR SURFACES
DESCRIPTION
A two part acrylic polymer modified highly flexible cementitious waterproof membrane supplied in pre-packaged form for the protection of concrete and mortar. BETOGARD-125 provides excellent adhesion, flexibility, crack bridging ability, and durability.
FIELD OF APPLICATION
Coatings made of BETOGARD-125 are wear-proof, elastic and waterproof. Such coatings can be used for areas subject to mechanical stresses and for areas which might be subject to cracking, e.g. waterproofing layers on terraces and balconies, as protection for concrete surfaces which can be walked on, as waterproofing for water tanks, swimming pools, underground concrete structures, pits, basins, wet and damp-rooms underneath tiles and ceramic coverings.
ADVANTAGES
- Solvent free and non-toxic - Environmentally friendly.
- Protection against carbonation and chlorides.
- Excellent adhesion. Fully bonded.
- Bridges cracks up to 1.5 mm on positive water pressure side applications.
- Minimum surface preparation needed. No priming is necessary in most cases.
- Stands up to pedestrian and light traffic.
- Resists abrasion, mechanical wear & deicing salts.
- Applied to moist/damp substrates. (Also it can be applied to 24 hour old concrete.)
- Approved for use in contact with potable water
- Breathable (not a vapor barrier).
- Does not support the growth of mold & mildew
- UV, weather & freeze/thaw resistant
- Resists strong hydrostatic pressure (tested up to 7 bar water pressure, positive side).
SURFACE PREPARATION
The substrate should be clean and sound, free of dust, loose particles, grease, oil and primers from previous membrane systems or bitumen. Bitumen or primers should be removed by shot blasting or mechanical means. Spalled concrete should be repaired by cutting out to sound concrete and patching with DEZOSIVE 1020. Cracks, holes and honeycombs must be repaired prior to application.
PHYSICAL & TECHNICAL DATA
Appearance Gray
Mixing Ratio 2:5 (by weight)
Density (A+B) Approx. 1.8 g/cm3
Coverage Pot Approx. 1.8 kg/m2/mm
Life Approx. 30 minutes at 30°C
Tensile Adhesion Strength (Dry) >1 MPa (According to EN14891-2013)
Tensile Adhesion Strength(Water
Immersion) >0.8 MPa (According to EN14891-2013)
Tensile Elongation >10% (According to ASTM D412)
Adhesion to Concrete 2 MPa (Concrete failure)
According to ASTM D 4541
Approx. 2 to 4 hours depending
atmospheric conditions
Recoat Time
Resistance to Water Penetration No water penetration
(According to BS EN 12390-8) - rain after
approx. 3 hours
Exposure to - pedestrian traffic after approx. 1 day
- pressure water after approx. 7 days
- setting of tiles after approx. 1 day
MIXING
BETOGARD-125 is supplied in premeasured units. Slowly add the powder to the liquid and mix to a lump free smooth consistency. Do not add water or rework a stiffened mix by adding water. Mix sufficient material to use within 30 minutes.
APPLICATION
Saturate the concrete’s surface with clean water. Apply the first coat while the surface is still damp but no free standing water. Apply using a short stiff bristle brush, rubber squeegee or roller at a rate of 1-2 mm. for walls and floors, depending on the expected water pressure. The required thickness is achieved by applying 2 layers, taking care that each layer is not thicker than 1mm. Leave the first coat to dry for 2-4 hours before applying the second coat. The second coat can be rubbed down with a soft dry sponge. Spray or trowel application is acceptable providing the mixing ratio is adjusted to achieve the right consistency. Leave the second coat of BETOGARD-125 to cure overnight before proceeding to conduct water ponding test.
CURING
BETOGARD-125 should be protected from high wind & intense sunshine. Keep moist for 3-4 days after application.
STORAGE & SHELFLIFE
The shelf life is 12 months if unopened, stored free from frost, moisture and direct sunlight. PACKAGING :28kgs set. Part A liquid 8 kg plastic pails, Part B powder 20 kg bags.
HEALTH & SAFETY
BETOGARD-125 is non-toxic but is alkaline in its nature. When applying, gloves and goggles should be worn. Wash off splashes to skin with water. If in eyes wash out with plenty of clean water and seek medical attention. BETOGARD-125 is non-flammable. MSDS is available at CONCRETE CLINIC OF IRAN website.
TECHNICAL SERVICE
The CONCRETE CLINIC OF IRAN INTERNATIONAL GROUP Technical Department is available to assist you in the correct use of our products and its resources are at your disposal entirely without obligation.