Instructions for use
-Site preparation
*Finish all necessary soil compaction and floor preparation work before placing the concrete.
*Sub grade must be well drained and must be graded in uniform thickness to create uniform load bearing characteristics and eventually reduce cracks ,
- Concrete placement
* Protect the working area from wind and direct sunlight. Preferably finish concreting work, after finishing roofing and wall construction. If it is necessary to place concrete outdoors the weather conditions must be taken into account to minimize the it’s effect on the fresh concrete.
* The concrete forms must be positioned in their correct positions one or two days before placing the Concrete, taking into consideration joint locations such as control and construction joints.
* Always use good quality concrete mix suitable for industrial floors and prepared according to internationally accepted standards.
*In industrial floors thickness of the placed fresh concrete should not be less than 10cm. unless it contains special additives to reduce thickness.
* Discharge the concrete directly from the concrete mixer truck. Deposit concrete uniformly in front of the vibrating screed.
* The grade behind the screed must be checked frequently , over vibration must be avoided to stop excess fine material from coming to the surface. Remove some of the mortar from the surface average 2-3 mm which will be placed by Metop TM4 coverage
* The surface is then bull floated with wood or magnesium floats.
- Color hardener application
There are two application methods
1)The product Metop Tm4 is mixed for with 20% pbw water in a small mixer close to the area to concreted. After mixing . leave for (3-5 min) and then remix. Then place on the prepared surface (wet on wet ) to the required level. Bull float or use a floating machine by pan to increase the adherence between the two surfaces. Then step by step continue to finish by trowelling with steel blades , using the same procedures used in normal surface hardener application.
Apply to the finished surface METOCURE ACR 150 curing agent .
2) After screeding the concrete surface, 2-3 mm of the surface is removed. Enough to be replaced by (coverage 10 kg/m2) METOP TM4.
Apply half of the powder mixture of METOP TM4 to the fresh concrete surface bull floated or by floating machine using only discs. Then apply the second half of powder METOP TM4 mixture , small amount of water can be sprinkled between the two surface to increase adhesion. The same application procedure is repeated for the second half. Finish the surface by trowelling with blades to get a hard smooth surface. If a rougher surface or broom finish is required then the surface can either be finished at the floating stage or shaped with hard broom.
Again apply METOCURE ACR 150 curing agent .
If Metop TM4 is required for a lighter or forklift traffic , application can proceed without removing any of the concrete mortar, making sure that vibrating screed is used at least twice , apply METOP TM4 (6-8 kg/m2) and finish the the surface the same way as any normal dry shake hardener.
Cleaning
All tools should be washed with water after use.
Curing
-100-200 g/m² METOCURE curing agent should be applied to the dry cleaned concrete surface . It is manufactured to conform to ASTM C309.
-METOCUREhas the advantage of preventing initial water loss from the concrete surface and eventually result in better quality and higher strength concrete . Depending on the type of curing agent used best results can be achieved if no moisture is present on the surface of concrete during the curing agent application.
COVERAGE :
Heavy duty surface 10-25 kg /m2
Moderate industrial traffic -8-10 kg/m2
*METOP TM 4 , is a cementitious material so do not use on floors subjected to acids and other corrosive chemicals,
*The above mentioned application system is for normal weather conditions. In the case of extreme weather conditions this application method, the concrete mixing and curing application must be modified accordingly.
* METOP TM4 is a cementitious material and become alkaline when mixed with water therefore avoid contact with skin it can be harmful and wash thoroughly with water.
