Description
Technical Properties
| Properties | Result |
|---|---|
| Appearance | Grey powder |
| Dry Density | 1.65 kg/L |
| VOC | 4.59g/L |
| Grain size | 0 – 2.5 mm |
| Adhesion to surface | >0.35 N / mm² |
| Compressive strength at 28 days (ASTM C579) | 10 N / mm² |
| Flexural strength at 28 days (ANSI 118.7) | 2.0 N / mm² |
| Chloride Content (BS 812) | 0.052% |
| Tensile strength After 28 days (BS 6319 Part 7) | >3 N / mm2 |
| Water absorption (BS 1881) | 4% |
| Drying Shrinkage At 7 days | <300 microstrain |
| At 28 days (ASTM C157-93) | <500 microstrain |
| Rapid Chloride Permeability (ASTM C1202) | Low |
| Workability at 25ºC | >30 minutes |
| Application Temperature | from +5ºC to +35ºC |
| All values are subject to 5-10 % tolerance. | |
Uses
RAK PLASTER 200 is recommended for plastering on block walls, ceilings, bricks and concrete surfaces, it should not be used on painted surfaces.
Instructions for use
Surface preparations
The substrate should be free of loose particles, dust, dirt, grease, oil or paint. Absorbent and porous substrates should be moistened with water prior the application of RAK PLASTER 200.
In case of non absorbent surfaces, a spatter dash slurry coat RUSH COAT or RUSH COAT SPX (in case of AAC Block surface) should be applied as a key coat to improve adhesion and high bonding with the substrate.
In case of surface contains microsilica, RUSH COAT SPX spatter dash slurry should be applied to improve adhesion with the substrate. Concrete or block substrates should have been allowed to cure su ciently. All shrinkage movements should taken place before applying RAK PLASTER 200.
Do not apply RAK PLASTER 200 on surface exposed to movement, vibration or mechanical impacts. Saturate the surface with water and wait for the evaporation of excess water before applying the mix.
Mixing
RAK PLASTER 200 should be mixed with clean water to obtain a homogeneous mixture free from lumps. One 50 Kg. bag of RAK PLASTER 200 should be mixed with about 6.5 – 8 Liters of clean water. The mixture remains workable for 1 hour after mixing (at 25ºC). Let the mix set for 5 minutes, then remix before application.
Application
Apply RAK PLASTER 200 on the surface manually with a plastering trowel or by using a spraying machine in a single layer (up to 20mm). When the plaster has “set”, smooth finishing can be achieved with a wooden or foam float. The Float should be moistened during the smoothing operation. If more thickness is required, the application should be done in two layers. In the first layer, apply RAK PLASTER 200 in a thickness of 10-15mm, a rough texture is to be obtained to provide mechanical Key for the second layer. The second layer should be applied at least 48 hours after the first layer. Within this period cure the plaster with clean water. Apply the second layer at a thickness of up to 20mm. If applying with spray machine, RAK PLASTER 200 mix should not be allowed to stand unused in the machine for longer than 30 minutes. In order to ensure proper curing, it is advisable to keep the plastered surface moist and protected from sun and wind during the first 48 hours.
Cleaning
Tools and equipment should be cleaned with water immediately after use. Hardened materials should be mechanically removed
Consumption
Approximately 16-17 kg per m² for 10 mm thickness.
Packaging
RAK PLASTER 200 is supplied in 50kg multilayered bags.
Recommendations
- No further water should be added to the mix. Hard and set plaster should not be re-mixed or used
- Do not apply RAK PLASTER 200 onto gypsum, metallic and wooden supports
- During summer season, working area should be covered to prevent the direct sun e ects. Keep equipment cool and use cold water
- The applied plaster has to be water cured for a period of 3 days
- Before applying any kind of stucco finish, paint, or wall paper the plaster has to be allowed to dry out completely
- Should not be applied on floors or on painted surfaces
Storage
Store in dry covered place in the original closed bags. In these conditions, the product shelf life is 12 months from the date of production.
Applicable Standards
- BS 5262,5492
- ASTM C 387
Health & Safety
RAK PLASTER 200 is a cement based product. Avoid contact with eyes or skin.
During application, wear appropriate protective clothing, goggles, gloves and respiratory equipment if necessary.
In case of contact with skin, rinse with water and again wash thoroughly with soap and water.
In case of contact with eyes, rinse with plenty of water and seek medical advice accordingly.
If ingested, obtain medical attention immediately. Do not induce vomiting.
