9 Remove masking tape. Removal of oil from parking lots, drive-throughs, and other concrete pavements is the most common concrete power-washing application. Brush the acid over the concrete with a push broom or a long masonry brush. Order online at Screwfix.com. Acid Wash 80 x 5 ltr. We specialise in concrete driveways, patios & paths in a range of finishes -from plain concrete to exposed aggregate, colour and cut, and stamped concrete. Based on a special blend of surfactants with hydrochloric acid. The presence of a surface hardener – which will prevent the reaction of the acid; The solution being too weak / concrete too hard. Prior to applying Acid Wash: Ensure the paving is TOTALLY saturated with water (no more water will soak in). I need something I can do myself, with a good paint that wont crack and covers well. It is easily neutralized and diluted with water. Last year I posted that I had had my pebblecrete pool completely re-surfaced. If you are not sure, you can make the room empty first and remove all furniture in there. In addition to hot water, an alkaline degreaser will greatly increase removal rates of oil and grease. It took a solid week working around 6 hours a day on it, though I’m a perfectionist. NOTES: Check with local water authority/EPA if approval is required if wastewater is to enter catchments or sewers. Now I would like to get my front porch, which is also pebblecrete, resurfaced. Hiring a professional to acid wash your concrete or garage floor can be quite expensive, especially for a job you can do yourself. Patina stain can be used on plain concrete to give a Patina affect. How to acid etch concrete to prepare it for resurfacing, sealing, or decorative concrete processes. The porch is Crete-Wash is a unique and safe formulation designed to remove dry set concrete without damaging the surface underneath. Cemix Concrete Dissolver is a “mineral-acid” alternative with no sulfuric, muriatic, hydrochloric or phosphoric acids. They're very variable in their application. I have had some quotes to have it skimmed with concrete but they seem very expensive. they have been painted previously but the birds peck them when their food falls onto the floor and the same with the possums. Did an acid wash on the concrete and driveway. Suitable for use with most pressure washing equipment for fast and thorough cleaning. Learn how to paint a concrete driveway with this guide from Bunnings Warehouse. Finished cleaning with a concrete etcher. Check for moisture . ... Let the primer sit on the surface for 10 minutes, then wash it off with a hose. IT CONTAINS NO ACID. Not suitable for use on stainless steel. posted 2012-Dec-3, 6:52 am AEST edited 2012-Dec-3, 6:58 am AEST. Crete-Off will not harm painted surfaces, tools, metal surfaces, plastic surfaces, or any type of plants or vegetation. Painted the base colour (Timeless grey by Dulux) with a concrete-specific roller. Always apply acid with an all plastic sprayer. Profile achieved with acid etching: CSP 1. existing paint does not have any sealer or anything. You might be able to dissolve the particle with the acid. I need some advice for repainting the concrete patio and driveway in my unit (circa 1970's). It has no fumes and is 100% biodegradable, non toxic and environmentally green liquid. Always apply acid carefully / sparingly / a small amount. When acid attack concrete it dissolves both hydrated and un-hydrated cement compounds as well as calcareous aggregates. 8 Paint the rest of the concrete floor. Irritant to eyes. Using a relatively stiff broom, the diluted acid should then be applied uniformly over the surface. Step 1. Application. Concentrated Acid Solution at 5% used to remove excess Antique Powder Release Agent. It is fast-acting but not instantaneous, so correct application of the liquid to the material is the key to success. Message 1 of 14 999 Views Labels: Painting; Renovation; Reply. 6 Mask around the edges. During this entire process, do not let the concrete dry out at all. Recommended for use in industrial or public washroom areas.