Description:

DARAKOTE 90WX is a refined white wax water emulsion based curing membrane used to protect fresh concrete surfaces from the undesirable effects associated with too rapid evaporation of surface moisture.

This protection is achieved by spraying DARAKOTE 90WX onto the fresh concrete surface which rapidly forms an impermeable skin of wax over the surface; applied at a coverage rate of 4.5 m per litre, exceeds the 90% efficiency index for testing curing efficiency when determined in accordance with the test specified in the Ministry of Public Building & Works General 201: 1969.

Applied at a coverage rate of 4.5 m per litre, DARAKOTE 90WX exceeds the 90% efficiency index for testing curing efficiency when determined in accordance with DOT specification for Roads and Bridge Works 1976, Clause 2709.

DARAKOTE 90WX complies with DOT specification for Roads & Bridge Works 1976 Clause 2603 and with DOE specification for Aircraft Pavements 1972, Clause 810.

DARAKOTE 90WX has been tested in accordance with BS 7542: Method of Tests for Curing Membranes for Concrete, and shown to exceed the 90% efficiency index requirement. DARAKOTE 90WX complies with the requirements of ASTM C 309, Type 1.

When tested in of the accordance with ASTM C 156 DARAKOTE 90WX, applied at a coverage rate of 4.5 m per litre, restricts the water loss to less than 0.55kg per m of surface, in 72 hours.

Advantages:

• Provides a labour saving method of ensuring all fresh concrete is cured properly, without the use of “ponding” techniques, or the continuous wetting of hessian stretched over the concrete surface.
• Ingredients remain in suspension requiring no preuse agitation. A single application only is required.
• When used as recommended DARAKOTE 90WX will not damage concrete or impair its properties in any way. Spillages can be hosed away with water.
• No solvent vapour or noxious fumes are given off, and it can, therefore, be used indoors or in enclosed areas without provision for ventilation.
• Is miscible with water and no solvent is required to clean spray equipment, provided the membrane is not allowed to completely harden on the equipment.