Hydrocoat Osmocem

• The substrate must be perfectly cured, free from hygrometric shrinkage, solid (i.e. free of weak or easily removable parts) and free from oil, grease and paint
• Check that the concrete contains no traces of parting compound. The most suitable cleaning methods are sandblasting, shot peening or washing with pressurised water
• When working on weakened parts, when parts of the substrate are missing and also in the case of gravel beds, the substrate must be restored with Dubond Ducem before application, the substrates must be wet well but must not include any stagnant water In waterproofing operations for exterior foundation walls and underground structures.

Preparation of substrates

Prepare Hydro Coat Osmocem by mixing 10 kg of powder with approximately 3-4 litres of clean water according to the chosen type of application (spreader or brush). Mix with a low-rev, stirring device for approximately 2 minutes until a mixture with a fluid and homogenous consistency is obtained.Pour almost all of the water required into a clean container and gradually add the powder during the mixing operation until the desired consistency is obtained. Leave the mixture to rest for approximately 5 minutes to allow for complete hydration of the micro-components and mix again for approximately 20 seconds before use.

• Ensure that structure is sound and free from dirt, soil, oil release agents, laitance and any other foreign materials which may impair the bond, penetration and/ or the overall performance of Hydro Coat
• In case of smooth concrete surface, the surface should be water cleaned / sand blasted or acid etched to ensure that the concrete surface has an open capillary system.
• Ensure to fill cracks / honeycombs / holes / faulty construction joints with Dubond Acrylic Crack Filler and allow it to touch dry.
• Ensure to hydroprime the surface before applying Hydro Coat to facilitate maximum chemical penetration.
• Use the wire brush to scrub out the loose particles and blow it out to make it dust free before the application of Hydro prime. Take 1 liter of Hydroprime with 100% dilution ( ie 1 liter of water ) and apply 2 coats at the interval of 4 hours gap time between both coats.
• Add 4 – 4.5 Ltrs of water with 10 Kgs of Hydro Coat, stir the mix thoroughly to form slurry and apply, in specified quantities, by stiff bristle brush or squeegee. Ensure to prepare only as much amount of slurry as can be applied during its pot time i.e. 20 minutes. ( can add or reduce water as per the site conditions )
• Ensure the desired thickness in each coat of application.
• For horizontal surface apply in one coat while for vertical surface apply in two coats. Apply second coat when first coat is touch-dry. Glass fiber mesh can be used as a sandwitch between the layers of coat as reinforcement system which ensures tight bonding to restrain from the hydrostatic preassure.
• Light spray of water may be required between coats in hot/ dry climates.
• In extreme hot weather and very low humidity conditions, ensure curing as soon as the Hydro Coat coating has hardened sufficiently.
• After 36 – 48 hours of the application of 2 coats ponding can be done to the satisfaction of the engineer for the final testing of waterproofing. Recommended for 3 to 4 days

1 Kg, 5 Kg & 10 Kg bag.

6 months in original unopened sealed condition.