Polycrete FC
Polycrete FC
Polymer modified cementitious fairing coat
Properties
- Requires only on site addition of water
- Shrinkage compensated and crack resistant
- Excellent adhesion to concrete
- Easy to apply
- Low permeability. Resistant to the attacks of chlorides and other mild chemicals
Description
Polycrete FC is a single component polymer modified fairing coat designed to fill pores, blowholes, minor honeycombs on a concrete surface. This can also be used as a skim coat prior to the application of protective coatings. It is a shrinkage compensated crack free material, which can be applied as thin surface coats.
TDS For Polycrete FC
- Step by Step
Surface Preparation
Clean the concrete surface of all contaminants like oil and grease, traces of curing compound and loosely adhering particles. The cleaning can be done by sand/grit blasting, high pressure water jet or mechanical scabbling.
Priming
Saturate the concrete surface with clean potable water prior to the application of the fairing coat. however, ensure that the surface is free of standing water prior to the application of the fairing coat.
Mixing
Polycrete FC shall be mixed with 4.5-5.0 ltr. water at a w/p ratio of 0.18 – 0.2. pour the required quantity of water in a separate mixing container. Slowly add the powder to the water and mix continuously with a mortar paddle mixer fitted to a slow speed drill (300/400 rpm) till a homogenous and lump free consistency is achieved.
Application
Apply the mixed mortar with a steel trowel evenly on to the concrete surface within its working time. allow the coat to partly set before finally toweling it to achieve a smooth finish. For achieving a very smooth finish, sprinkle water on the surface and smoothen the surface with the steel trowel. The fairing coat shall be finished by striking off with a straight edge and closed with a steel or plastic float.
CAUTION:Water can be drawn to the surface if “overworking” with the float occurs resulting in an unsightly finish. damp sponges or plastic floats may be used to achieve a desired surface texture, but care should again be taken not to overwork the surface.
Curing
Due to the presence of rapid drying polymers in the fairing coat, the applied mortar has to be protected from hot and drying winds. Curing can be done either by the use of a non-degradable type of curing compound or continuous wetting of the surface with water. When cured with wet hessian cloth, the area shall be covered immediately with a high density polyethyelene sheet which shall be taped to all the edges which has been repaired.
