CONSTRUCTION CHEMICALS

Megaİzo Lastik 15
Polymer Emulsion And Cement Based, UV Resistant,
Double Component And Elastic
Waterproofing Material
PRODUCT DESCRIPTION
UV resistant waterproofing material comprised of cement based powder component and
polymer emulsion based liquid component, which can be applied prior to or as top coating
material.
AREAS OF USE
Megaİzo Lastik 15 is used as a waterproofing material, being suitable for light pedestrian
traffic, for all structures, especially for terrace roofs, which are intended not to be coated with
another coating material and for the balconies the waterproofing of the exterior facades of
buildings. It is suitable for use on horizontal and vertical surfaces of indoors and outdoors
spaces.
İPRODUCT ADVANTAGES
• Fit for light pedestrian traffic.
• UV resistant.
• Highly adhesive.
• Being of water repellant nature, the product is resistant to water and frost.
• Ensures seamless waterproofing for application surfaces.
• Allows for the application of any coating material subsequent to the application thereof.
• Elastic.
• Applied rapidly and easily.
• Free from solvents, and environmentally friendly.
PERFORMANCE
TYPE: CM, waterproofing material with cement content, applied in liquid form, which, under
standard conditions, poses crack bridging capability under standard conditions and at low
temperatures.
Initial adhesion strength ≥ 0.5 N/mm 2 TS EN 14891 : 2012
Adhesion strength after water contact ≥ 0.5 N/mm 2 TS EN 14891 : 2012
Adhesion strength after thermal ageing ≥ 0.5 N/mm 2 TS EN 14891 : 2012
Adhesion strength after freezing –
thawing cycles
≥ 0.5 N/mm 2 TS EN 14891 : 2012
Adhesion strength after hard water
contact
≥ 0.5 N/mm 2 TS EN 14891 : 2012
Waterprooding
No penetration, ≤ 20 gr
increase in mass
TS EN 14891 : 2012
Crack bridging capability under standard
conditions
≥ 0.75 mm TS EN 14891:2012
The foregoing values represent the results of the laboratory tests conducted at 23 ± 2°C
temperature and 50% ± 5 relative humidity conditions. The values provided as per the table
may vary depending on the surface and ambient conditions.
REFERENCE STANDARDS
Certifications/Standards
TS EN 14891
TS EN 1504 - 2
Ministry of Public Works and Settlement Item No.
Ministry of Public Works and Settlement Item No.: 04.477/1
QUALITY CERTIFICATES
Conformant to TS EN 14891.
CE
APPLICATION PROCEDURE
Application Surfaces
Indoors and Outdoors Walls;
- Cement based plaster (MegaFilm primer applied)
- Concrete (MegaFilm or MegaFilm BB primer applied)
Indoors and Outdoors Floors;
- Cement based trowel coating (MegaFilm primer applied)
- Concrete (MegaFilm or MegaFilm BB primer applied)
Surface Preparation
• Application surfaces should be sound, clean, dust-free, and free from molding oils and
other foreign substances. Such materials as mortar and cement residues should be peeled off.
• The surface defects, which are deeper than 1 cm, should be repaired with MegaTamir İ or
MegaTamir K 24 hours in advance. In the cases, where structural repair mortar should be
used; MegaTamir İ Yapısal or MegaTamir K Yapısal should be preferred.
• Upon the completion of the surface cleaning, MegaFilm primer should be applied in a
single coat with a brush and be left to dry for 1 to 2 hours in order to enhance the bonding
strength and stabilize the surface absorption.
• Exposed concrete surfaces should be applied MegaFilm BB exposed concrete primer in
single coat and be left to dry for minimum 3 hours prior to the application of the adhesive
mortar in order to enhance the adhesion strength.
Application Methods
• Megaİzo Lastik 15, the mixture of which should have been prepared, should be applied in
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double coat on the surface. Once the primary coat thoroughly dries, the secondary coat
should be applied as perpendicularly to the primary coat.
• Edge and corner joints should be beveled with MegaTamir İ and MegaTamir K repair
mortars in order for the maintenance of waterproofing.
• In the cases, where beveling is not performed; Megaİzo Bant should be applied to such
inadequately waterproof spots as edge and corner joint spots in order to ensure the
maintenance of insulation.
• Depending on the nature of the application surface; the secondary coat may be applied
after the placement of Megaİzo File on the primary coat. In the cases, where net
reinforcement is necessary; the net shall be laid on the primary coat before it dries.
Application Recommendations
• The product is recommended to be applied with joint allowances in order to eliminate
contraction risk on excessively large surfaces. Elastic filling materials or Megaİzo PU Mastik
should be used for the joints.
• Due care must be taken to ensure that the insulation material is not damaged by
mechanical impacts in the cases of coating over the insulation.
• The product should not be applied against negative water pressure.
• The product should, once mixed, be used before the expiration of its pot life. Any product,
the pot life of which has expired, should not be used during the application.
• Any foreign material should not be added into the product’s components of the product
during the application.
• The product should not be applied on unsound surfaces. The soundness and the load
bearing capacity of old surfaces should be checked prior to adhesion.
• The surface should be preserved from air currents and water contact during and after the
application.
• The product should not be applied to such surfaces, which are exposed to risk of freezing
within the next 24 hours, which are frozen or the frost of which is thawing.
• Due care should be given to prevent the exposure of the material to direct sunlight in hot
weather conditions.
• The product should not be applied on extremely windy weather conditions or on hot
surfaces, which are exposed to direct sunlight; and in the cases, where application is
imperative under such conditions, the environment and the surface should be prepared for
application in advance.
• The product should not be applied in rainy weather conditions, and the application surface
should be preserved from rain for a period of 24 hours.
• Refer to our technical support hotline for recommendation on different surface applications.
(PHONE: 444 4 595)
Surface and Ambient Temperature
The surface and ambient temperature should be between +5°C and +35°C whilst at
application.
Application Limits
Useful time for prepared mixture - Pot life
Stand-by period between coats
Required standby time before subsequent application (at
discretion)
The foregoing values represent the results of the laboratory tests conducted at 23 ± 2°C
temperature and 50% ± 5 relative humidity conditions. The values provided as per the table
may vary depending on the surface and ambient conditions.
APPLICATION INSTRUCTIONS
Mixing Ratio
The powder component (20 kg) and the liquid component (8 kg) should be thoroughly
mixed.
Mixing Equipment
• Low speed electrical mixer (400 cycles/min.)
• Special tip stirring equipment
Mixing Period
The product should be stirred with a low-speed mixer until any dry dust and globs are
eliminated. The mortar should, then, be stirred once again for 1 to 2 minutes after being had
settled for 3 to 4 minutes following preparation. The product should be stirred in regular
intervals during the application.
Application Equipment
• Brush
• Roller
Maximum 3 hours
Minimum 6 hours
Minimum 3 days
Equipment Cleaning
The equipment used should be cleaned with water following the application before the
product dries.
TECHNICAL PROPERTIES
Chemical Structure: Cement and polymer emulsion based waterproofing material
Dry Density: 0.99 ± 0.01 g/cm 3