construction chemicals

MegaSıva Makine Serpme
Cement Based Premixed Preliminary Base Coat
PRODUCT DESCRIPTION
Cement based, machine applied preliminary base coat with filling material in appropriate
granulometry, which is used for surface preparation purposes.
AREAS OF USE
MegaSıva Makine Serpme is used on gas concrete, concrete, briquette, brick and natural
rock vertical surfaces and ceilings. The product is applied in indoors and outdoors spaces.
PRODUCT ADVANTAGES
• Providing high bonding to the surface, the product does not cause spalling and poses high
bonding strength.
• Ensures convenience in control, preparing the surface as appropriate for the plaster application.
• Easily and rapidly applied by machine.
PERFORMANCE
Bending strength > 2.0 N/mm 2 TS EN 1015 - 11
Compression strength > 6.0 N/mm 2 TS EN 1015 - 11
Dry bulk density 1.65 ± 0.10 gr/cm 3 TS EN 1015 - 10
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 998 - 1 (GP)
Ministry of Public Works and Settlement Item No.
Ministry of Public Works and Settlement Item No.: 04.476
QUALITY CERTIFICATES
Conformant to TS EN 998 - 1.
APPLICATION PROCEDURE
Application Surfaces
Indoors and Outdoors Walls;
- Gas concrete
- Concrete (MegaFilm or MegaFilm BB primer applied)
- Briquette
- Brick
- Vertical surfaces of natural rock
Ceilings:
- Concrete (MegaFilm or MegaFilm BB primer applied)
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 should be scraped from the application surface.
• 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.
• The application surfaces should be moisturized with water, where necessary.
• 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
• The secondary coat of plaster should be applied minimum 24 hours after the application of
MegaSıva Makine Serpme, after which the surface should be gauged and finished.
Application Recommendations
• The surface should be moisturized intermittently for a period 7 days following the application
in order to enhance the endurance of the plaster.
• The product should not be applied to gypsum surfaces.
• 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
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 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.
120
• 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
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 18 - 20 % of the product. (6.0 -
7.0 liters of water for a 35 kg package)
Mixing Equipment
Premixed plaster mixing and spraying machine
Mixing Period
The mortar shall be applied with the premixed plaster mixing and spraying machine.
Application Equipment
Premixed plaster mixing and spraying machine
Maximum 30 minutes
Equipment Cleaning
The equipment used should be cleaned with water following the application before the
product dries.
TECHNICAL PROPERTIES
Chemical Structure: Cement based, machine applied base coat with filling material in
appropriate granulometry
Dry Density: 1.65 ± 0.1 gr/cm 3
Mortar Density: 1.85 ± 0.1 gr/cm 3
Grain Size: ≤ 1800 µm
Color: Gray
CONSUMPTION
Recommended consumption amount for application in roughly 1 cm thickness on 1 m 2
surface is 17 - 20 kg. The said values may vary, depending on the surface and ambient
conditions.
PACKAGING
MegaSıva Makine Serpme is delivered in net 35 kg kraft bags, which are stowed in 42 pcs.
on a 80 cm x 120 cm palette (1470 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.