Dr. Fixit Fastflex

SURFACE PREPARATION

• The surface of application must be thoroughly prepared by mechanical means, to remove all loose particles, laitance, etc.
• Oil and grease, if any, must be de-greased with suitable solvents. It then must be washed off with jet of water and brought to touch dry state.
• Any surface undulations, cracks and crevices must be duly filled or repaired with cement sand mortar mixed with latex polymers such as Dr. Fixit Pidicrete URP.
• All vertical up-stands & junctions /corners are provided with 45° fillet with Polymer Modified Mortar (PMM), mixed with Dr. Fixit Pidicrete URP all around the periphery of the junction.
• Substrate must be in a “Saturated Surface Dry” (SSD) condition (damp, without standing water) prior to application.

2 MIXING

• Using a slow speed mechanical mixer and a clean suitable mixing vessel, slowly add the powder component to the liquid polymer and stir until a smooth and homogenous slurry, is achieved.
• Allow the mixed slurry to stand for 5 – 10 minutes before use.
• Do not dilute with water.

3 APPLICATION

• All the pipe inserts or sanitary fittings should have been fitted grouted with suitable products from the Dr. Fixit range well before taking up the application.
• The surface of application must be pre-wetted thoroughly with water & brought to a touch dry state. Take up the first coat application with a stiff nylon brush. Work well into the substrate, to ensure that all small undulations are completely filled with the coating.
• Provide and lay 45 GSM glass fibre mesh over the angle fillet when the first coat in still wet.
• 6 to 8 hrs after completion of first coat, take up second coat application in a direction perpendicular to the first.
• Complete the application and leave to air cure for 3-5 days. A moist hessian cloth can be kept over the coated surface to protect it from the effect of direct sunlight, in case of bathrooms and internal areas, leave the coating without water curing for 3-5 days at least.
• For vertical walls in bathroom ensure internal plaster is sound, levelled and mixed with Dr. Fixit Pidiproof LW+, Apply 2 coats of Dr. Fixit Fastflex on all over or shower area, sprinkle the coarse, quartz sand while the second coat is still wet or apply a spatter dash bond coat..This will provide key for subsequent tile adhesive materials.

4 WATERPROOFING OF ROOF AND WATERTANKS

• General waterproofing if applied in areas exposed to foot traffic, it must be protected with a screed overlaid, during the application itself.
• When coating for internal walls of water tanks, sprinkle coarse sand after second coat on wet coating to facilitate anchoring for upcoming protection plaster.

5 WATERPROOFING OF SWIMMING POOLS

• Apply Dr. Fixit Fastflex in 3 coats with each coat perpendicular direction to previous applied at the 6-8 hours interval at 3Kg/M2 coverage.
• Extend the coating up to the full height of internal RCC walls. While the third coat is still wet and tacky sprinkle/ broadcast coarse sand over the surface to make it rough to provide mechanical key for plastering.