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Mix Protecto W-40 in water first prior to addition in cement mortar/concrete
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Protecto W-40 can be used in various applications. Following guidelines are for structural rehabilitation. 1. Reach the sound concrete and clean reinforcements with wire brush to remove loose scales and rust remover to remove rust particles 2. Clean with jet of water to remove loose particles, dust, etc. 3. Apply Passivator coat: 1 part cement:1 part Protecto W-40 coat on rusted reinforcement 4. Apply bond coat : 1 part cement : 1 part Protecto W-40 on entire surface which is to receive subsequent polymer modified mortar 5. Prepare polymer modified mortar : 50 kgs Cement, 150 kgs quartz sand, 10 kg Protecto W-40, 5-7 lbs water. Apply this on tacky bond coat at approximate thickness per coat of 10 mm. 6. Finish surface as desired, using sponge etc. CURING: Protecto W-40 must be applied with temperature between 5 degC to 40 degdC. During the first 12 hours of curing it must be protected from abrasion, rain and other adverse conditions. No traffic should be allowed on a treated surface within 48 hours after application. After application of final coat, initial air drying shall be done for 2-6 hours. During this period no water is to be used for curing. After maximum period of 6 hours of the final application, moist curing shall be done for the next 24 hours by way of spraying water on the finished surface. Following moist curing, the finished surface shall be allowed to air dry for 3 days before submersion in water, if required for use. |
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