CONSTRUCTION CHEMICALS

MegaSıva Thermo
Plaster Mortar For Thermal Insulation Panels
PRODUCT DESCRIPTION
Cement based, easily applicable thermal insulation panel plaster reinforced with polymer
additives.
AREAS OF USE
MegaSıva Thermo is used as the surface plaster on such thermal insulation panels as XPS,
platinum, EPS and rockwool in indoors and outdoors spaces of all buildings.
PRODUCT ADVANTAGES
• Poses high level of adherence on the thermal insulation panels thanks to the special
additives in its content.
• Prevents condensation and winds the system thanks to its high vapor permeability.
• Prevents the formation of cracks and spalling thanks to the fibers in its content.
• Prepared and applied easily.
PERFORMANCE
Hollow specific bulk gravity of fresh mortar > 1150 kg/m 3 TS EN 1015 - 6
Hollow specific bulk gravity of hardened
cement based mortar
1450 ± 200 kg/m 3 TS EN 1015 - 10
Water absorption < 0.5 kg/m 2 dk 0,5 TS EN 1015 - 18
Bending strength > 2 N/mm 2 TS EN 1015 - 11
Compressive strength > 6 N/mm 2 TS EN 1015 - 11
Sieve analysis (in excess of 1 mm) Maksimum 1 % TS EN 1015 - 1
Adhesion strength to thermal insulation
panel
> 0.08 N/mm 2 TS EN 13494
Water vapor permeability coefficient µ ≤ 15 TS EN 1015 - 19
Reaction to fire A1 TS EN 13501 - 1
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
TSE K 113
Ministry of Public Works and Settlement Item No.
Ministry of Public Works and Settlement Item No.: 04.481
QUALITY CERTIFICATES
TSEK
CE
APPLICATION PROCEDURE
Application Surfaces
Indoors and Outdoors Walls;
- XPS
- EPS
- Platinum
- Rockwool
Surface Preparation
• The application surface should be dry, clean, sound and dust free, and should have been
cleansed of oil, dirt or any materials that may prevent adhesion, and any such materials as
mortar and cement residues that impair the surface smoothness should be scraped from the
application surface.
• When used as leveling plaster; 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.
Application Methods
• MegaSıva Thermo should be applied with a steel trowel in equal thickness on all surfaces.
• Donatı Filesi should, following the application of the primary coat of MegaSıva Thermo,
be placed into the plaster by stretching the mesh thoroughly and applying slight pressure
thereon from top to bottom, preventing any foldings.
• The joints of Donatı Filesi should be superpositioned by 10 cm in order to prevent the
formation of cracks. In the event the corner profiles are mesh free; the glass fiber mesh should
be turned by minimum 20 cm on the corners.
• The primary coat with mesh should be let dewater slightly before the application of the
secondary coat.
• The surface will have become ready for the finishing coat applications minimum 7 days after
the secondary coat plaster application.
Application Recommendations
• Plaster profiles should be employed on the corners in order to ensure a better quality result
and high level of efficiency.
• 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 such foreign substance as lime, cement or plaster should not be added to the mortar
prepared.
• Any extra water should not be added to the mixture.
• 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
53 application.
133
• 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 taken to ensure that the material is not exposed to direct sunlight in hot
weather conditions, and the product should be mixed with cold water.
• 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 +30°C whilst at
application.
Application Limits
Useful time for prepared mortar - Pot life
Required stand - by period for final coat
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 product should be mixed with water, weighing equal to 24 - 26 % of the product. (6.0 -
6.5 liters of water for a 25 kg package)
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.
Application Equipment
• Steel trowel
• Smoothing trowel
Maximum 2 hours
Minimum 7 days
Equipment Cleaning
The equipment used should be cleaned with water following the application before the
mortar dries.
TECHNICAL PROPERTIES
Chemical Structure: Cement based plaster mortar with polymer and fiber additive
Dry Density: 1.50 ± 0.1 gr/cm 3
Mortar Density: 1.75 ± 0.1 gr/cm 3
Grain Size: ≤ 600 µm
Coat Thickness: 2 - 5 mm (for the primary and the secondary coats)
Color: Gray
CONSUMPTION
The recommended consumption amount for a 4 mm thick insulation application (primary
coat of mortar + Donatı Filesi + secondary coat of mortar) on 1 m 2 surface is 4.0 - 5.0 kg.
The said values may vary, depending on the surface and ambient conditions.
PACKAGING
MegaSıva Thermo is delivered in net 25 kg kraft bags, which are stowed in 54 pcs. on a 80
cm x 100 cm palette (1350 kg).
SHELF LIFE
The shelf life of the product is 12 months when stored within non-tampered original
packaging in dry (maximum relative humidity 60 %) and cool (ambient temperature between
+5°C and +25°C) environment.
STORAGE CONDITIONS
The product should be stored within non-tampered original packaging in dry (maximum relative
humidity 60 %) and cool (ambient temperature between +5°C and +25°C) environment.
It should not be exposed to direct sunlight.
The container of the product should be closed firmly when not used.
SAFETY PRECAUTIONS
Please refer to the Safety Data Sheet (SDS) as appropriate for easy and safe application.