- PRODUCT PROPERTIES:
➢ One component, polymer modified, chloride free hydraulic mortar.
➢ Suitable for spray application by wet-spray techniques.
➢ Suitable for single application thickness of 10 to 50 mm.
➢ Shrinkage compensated and excellent adhesion.
➢ Ideal application and hardening times.
➢ High flexural tensile strength.
➢ Resistance to chloride and sea water.
- AREAS OF APPLICATION:
➢ Free form built-up as a scratch coat in theme plaster and rock works.
➢ Encapsulation to steel cage work to form a strong cement base course.
➢ Infill mortar to joint between FRP or GRC panels.
➢ Base leveling mortar to drywall panel and insulation panel construction.
- APPLICATION:
➢ Substrate treatment: The steel cage works must be clean and free from all loose particles dust, oil and other contaminants. Concrete substrates must have sufficient roughness and for off-form concrete surface, a splatter dash or key coat treatment is recommended.
➢ Manual Application: Before application of MC-RockMortar EX, ensure that the substrate has been pre-wetted to saturated surface dry condition. For very absorbent substrates, a polymer cement slurry bonding coat should be additionally brushed into the pre-wetted surface. The high build mortar, MC-RockMortar EX should then be applied “fresh-on-fresh” to the bond coat by trowel or float. The bond coat shall be based on Botact D10.
➢ Mixing: MC-RockMortar EX is a single-component mortar which is mixed with water. The dry powder is slowly added to water and mixed thoroughly until a homogeneous, creamy consistency is achieved. Forced action mixers are recommended. Mixing should take approx. 3 minutes. Mixing by hand is not permitted. Use full pack-sizes only.
➢ Mixing Ratio:
– For a 25 kg bag of MC-RockMortar EX, approximately 3.80 to 4.20 litres of water is required.
– For a 20 kg bag of MC-RockMortar EX, approximately 3.00 to 3.40 litres of water is required.
– As with all cementitious products, the quantity of water needed may be varied slightly.
➢ Application:
– MC-RockMortar EX can either be applied by hand with floats or trowels , or by wet-spray techniques.
– It is recommended to apply in layers of up to 50mm each. For thicker application, apply overcoat only after the previous coat has attained the final set. MC-RockMortar EX should not be applied at temperature below +5°C (air and substrate).
– Before application of overcoat all loose particles on the surface shall be removed. Allow MC-RockMortar EX to cure for 3 days before application of carve coat.
➢ Curing: Care must be taken to ensure MC-RockMortar EX is suitably protected to prevent it from drying out too rapidly, especially from the effects of direct sun and wind. As with all cementitious materials, it shall be protected from the rain before its final set.
➢ General: Coverage depends on texture and porosity of the substrate. To determine this exactly, a trial area should be laid and coverage noted.
- PRODUCT CHARACTERISTICS:
| Packaging | 20 kg and 25 kg bag |
| Storage | Can be stored in cool and dry conditions for at least 6 months in original unopened bags. |
| Disposal | In the interest of the environment, please empty all bags completely & dispose in accordance with local regulations. |
