CONSTRUCTION CHEMICALS
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
MegaSıva Elyaflı K<br />
Cement Based, Manually Applied Roughcast With<br />
Fiber Additive<br />
PRODUCT DESCRIPTION<br />
White cement based, manually applied roughcast with fiber with enhanced adherence, which<br />
contains filling material of suitable granulometry and which has been reinforced with various<br />
chemical additives.<br />
AREAS OF USE<br />
MegaSıva Elyaflı K is used in indoors and outdoors spaces for the elimination of surface<br />
defects and the repair of the fractures and cracks and the smoothing of surfaces on prime<br />
coated gas concrete, prime coated concrete, briquette, brick surfaces and ceilings, for the<br />
gauging of wall surfaces with defective gauge, and for surface smoothing prior to such<br />
applications as insulation system and curtain walling systems.<br />
PRODUCT ADVANTAGES<br />
• Resistant to outdoor conditions.<br />
• Ensuring high bonding to the surface, the product does not cause spalling and poses high<br />
bonding strength.<br />
• Being a high performance product, it does not cause contraction thanks to the fiber additive<br />
content.<br />
• Prepared and applied easily.<br />
PERFORMANCE<br />
Dry bulk density 1.60 ± 0.1 gr/cm 3 TS EN 1015 - 10<br />
Compressive strength CS IV TS EN 1015 - 11<br />
Bonding strength > 0.5 N/mm 2 TS EN 1015 - 12<br />
Capillary water absorption<br />
coefficient<br />
W 1 TS EN 1015 - 18<br />
Water vapor permeability µ < 11 TS EN 1015 - 19<br />
Air content % 6.5 ± 0.5 TS EN 1015 - 7<br />
> 3.5 hours (at 20 ± 5°C<br />
Workability time<br />
temperature and minimum 95 % TS EN 1015 - 9<br />
relative humidity)<br />
Reaction to fire A1 TS EN 13501 - 1<br />
The foregoing values represent the results of the laboratory tests conducted at 23 ± 2°C<br />
temperature and 50% ± 5 relative humidity conditions. The values provided as per the table<br />
may vary depending on the surface and ambient conditions.<br />
REFERENCE STANDARDS<br />
Certifications/Standards<br />
TS EN 998 - 1 (GP)<br />
Ministry of Public Works and Settlement Item No.<br />
Ministry of Public Works and Settlement Item No.: 04.482<br />
QUALITY CERTIFICATES<br />
Conformant to TS EN 998 - 1.<br />
CE<br />
APPLICATION PROCEDURE<br />
Application Surfaces<br />
Indoors and Outdoors Walls;<br />
- Gas concrete (MegaFilm primer applied)<br />
- Concrete (MegaFilm or MegaFilm BB primer applied)<br />
- Briquette<br />
- Brick<br />
Ceilings:<br />
- Concrete (MegaFilm or MegaFilm BB primer applied)<br />
Surface Preparation<br />
• The application surface should be dry, clean, sound and dust free, and should have been<br />
cleansed of oil, dirt or any materials that may prevent adhesion, and any such materials as<br />
mortar and cement residues should be scraped from the application surface.<br />
• The surface defects, which are deeper than 1 cm, should be repaired with MegaTamir İ or<br />
MegaTamir K 24 hours in advance. In the cases, where structural repair mortar should be<br />
used; MegaTamir İ Yapısal or MegaTamir K Yapısal should be preferred.<br />
• The application surfaces should be moisturized with water, where necessary.<br />
• Upon the completion of the surface cleaning, MegaFilm primer should be applied in a<br />
single coat with a brush and be left to dry for 1 to 2 hours in order to enhance the bonding<br />
strength and stabilize the surface absorption.<br />
• Gas concrete surfaces should, prior to the application of the product, be applied MegaFilm<br />
primer and the water absorption of the surfaces should so be reduced.<br />
• Exposed concrete surfaces should be applied MegaFilm BB exposed concrete primer in<br />
single coat and be left to dry for minimum 3 hours prior to the application of the adhesive<br />
mortar in order to enhance the adhesion strength.<br />
Application Methods<br />
• The application thickness should ranger between 1.0 cm and 2.5 cm. In the cases where the<br />
application thickness is to exceed 2.5 cm, an additional coat of maximum 2 cm thickness<br />
should be applied upon the sufficient hardening of the primary coat.<br />
• The product should be applied with a steel trowel, whereupon the surface should be<br />
smoothened with a gauge stick.<br />
• Once plaster dewaters and is sufficiently hardened following the application, the surface<br />
should be processed with a trowel and final finishing touches should be made with a moist<br />
sponge.<br />
Application Recommendations<br />
• The surface should be moisturized intermittently for a period 7 days following the<br />
application in order to enhance the endurance of the plaster.<br />
• Plaster profiles should be employed on the corners in order to ensure a better quality result<br />
and high level of efficiency.<br />
• The product should not be applied to such surfaces, to which paint, premixed colorful<br />
plaster, base coat plaster or exterior coating, and to gypsum surfaces.<br />
• The product should, once mixed, be used before the expiration of its pot life. Any product,<br />
the pot life of which has expired, should not be used during the application.<br />
• Any such foreign substance as lime, cement or plaster should not be added to the mortar<br />
prepared.<br />
• Any extra water should not be added to the mixture.<br />
• The product should not be applied on unsound surfaces. The soundness and the load<br />
bearing capacity of old surfaces should be checked prior to adhesion.<br />
• The surface should be preserved from air currents and water contact during and after the<br />
application.<br />
• The product should not be applied to such surfaces, which are exposed to risk of freezing<br />
within the next 24 hours, which are frozen or the frost of which is thawing.<br />
• Due care should be taken to ensure that the material is not exposed to direct sunlight in hot<br />
weather conditions, and the product should be mixed with cold water.<br />
• The product should not be applied on extremely windy weather conditions or on hot<br />
surfaces, which are exposed to direct sunlight; and in the cases, where application is<br />
imperative under such conditions, the environment and the surface should be prepared for<br />
application in advance.<br />
• The product should not be applied in rainy weather conditions, and the application surface<br />
should be preserved from rain for a period of 24 hours.<br />
• Refer to our technical support hotline for recommendation on different surface applications.<br />
(PHONE: 444 4 595)<br />
Surface and Ambient Temperature<br />
The surface and ambient temperature should be between +5°C and +30°C whilst at<br />
application.<br />
Application Limits<br />
Useful time for prepared mortar - Pot life<br />
Plaster surface smoothing time<br />
Through dry time<br />
The foregoing values represent the results of the laboratory tests conducted at 23 ± 2°C<br />
temperature and 50% ± 5 relative humidity conditions. The values provided as per the table<br />
may vary depending on the surface and ambient conditions.<br />
APPLICATION INSTRUCTIONS<br />
Mixing Ratio<br />
The product should be mixed with water, weighing equal to 23 - 25 % of the product. (8.00<br />
- 8.75 liters of water for a 35 kg package)<br />
Mixing Equipment<br />
• Low speed electrical mixer (400 cycles/min.)<br />
• Special tip stirring equipment<br />
Mixing Period<br />
The product should be stirred with a low-speed mixer until any dry dust and globs are<br />
eliminated. The mortar should, then, be stirred once again for 1 to 2 minutes after being had<br />
settled for 3 to 4 minutes following preparation.<br />
Application Equipment<br />
• Steel trowel<br />
• Smoothing trowel<br />
• Sponge<br />
Equipment Cleaning<br />
The equipment used should be cleaned with water following the application before the<br />
mortar dries.<br />
TECHNICAL PROPERTIES<br />
Chemical Structure: Cement based plaster with fiber additive<br />
Dry Density: 1.60 ± 0.1 gr/cm 3<br />
Mortar Density: 1.80 ± 0.1 gr/cm 3<br />
Grain Size: ≤ 1800 µm<br />
Coat Thickness: Maximum 1.0 cm - 2.5 cm (single coat)<br />
Color: White<br />
Maximum 1 hour<br />
Maximum 40 minutes<br />
Minimum 2 days<br />
126