- Easy application.
- Superior bonding.
- Internal or external application.
- Better Workability.
Cement Plaster CP-400 (HS)
Description
Stucco® CP-100 (HS) is factory blended cement plaster / render for internal and external use. CP-400 (HS) provides exceptional bonding and creates a base for a variety exterior finishes including paint or textured acrylic finishes. It can be applied manually or by a suitable plastering machine.
Composition
Ordinary Portland cement, processed natural mineral aggregates and special chemical additives.
Advantages
Technical Data
| Binder | Ordinary Portland Cement |
| Size of the aggregate | < 2.36 mm |
| Density | Dry-1.55 kg/ltr, Wet-1.65 kg/ltr. |
| Water requirement | 17% |
| Approximate yield/coverage | 630 ltrs/ton / 42 m2/ton @15mm thickness |
| Working time | Approx. 60 minutes. |
| Curing | Minimum 3 days (3-4 times daily) by potable water |
| Compressive strength | >15.0 N/mm2 at 28 days ASTM C579:2001 B |
| Flexural strength | 1.0 N/mm2 at 28 days BS 4551:1980 |
| Packing | Silo/50 kg paper bags |
| Shelf Life | 12 months from date of Manufacture |
| Application Standards | BS 5262:1991, 5492:1990, 4551:Part 2: 1998, 1881:Part 207:1992, DIN18550/1. 18550/2, ASTM C150, C348, C349, C926, C897, C109/ CM-01,BS EN 13914-1,13914-2 |
Method of Application
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Surface Prearation
- Surface must be free of dirt, oil, grease, scaling paint, releasing agents, curing agents, dust, loose particles, efflorescence or other foreign materials.
- Spray sufficient amount of clean potable water to neutralize the suction of the background.
- Allow free water to evaporate completely before the application of the render.
- The fixing of all attachments such as pipe, electrical fittings, corner beads etc should be carried out before commencement of rendering.
- Preparation on normal concrete surface Apply Rush Coat for Normal concrete Surface RC-200 on the prepared concrete surface. A rough texture has to be obtained to provide a mechanical key for the subsequent coat of CP-100.
- Preparation on micro silica concrete or concrete with curing compound Apply Rush Coat Special for Concrete Surface RC-300 on the prepared smooth concrete, which is modified with micro silica or curing compound or any other special admixture.
- Curing Curing of Rush coat with potable water is absolutely necessary, 3-4 times daily for 48 hours.
- In the event of dissimilar backgrounds At all junctions of dissimilar backgrounds, fix Expanded metal lath / fibre glass mesh (as approved by the consultant) or a groove has to be formed at the junction while the plaster is still soft.
- Mixing CP-400 (HS) when applied manually, mixing should be done in a clean non-corrosive, uncontaminated metal tub. Add 8.5 ltrs of clean potable water to 50 kg bag and mixing by an electrical agitator to ensure a homogeneous and uniform mix. When applied with plastering machine the water is adjusted by the flow meter and mixing is carried out automatically.
- Application CP-400 (HS) can be applied to a thickness of 15mm in one coat with spray machine. But where the thickness is expected to exceed more than 15mm it should be applied in multiple coats with receding thickness. In that case the previous coat of plaster must be cured for at least 2 days and final coat should always be done with the wooden trowel. Use of steel trowel should be avoided for the final finish. For external rendering it is recommended to apply in two coats.
- Curing Moist curing for 3 days (3-4 times daily) is necessary due to the absorption of moisture as well as the evaporation of surface moisture.
- Precautions Newly installed plaster should be protected from hot, dry winds and excessive ventilation. Do not apply if raining. Protect from rain for 48 hrs after application. Hard or lumpy material must not be used. The plaster has to be allowed to dry out completely devoid of any moisture, before applying any kind of stucco finish, paint or wall paper.
- Storage CP-400 (HS) must be protected from moisture and direct sunlight. Store off the ground in a cool and dry place.