Austin Stone

Austin Stone – Surface Prep

• Before the application of Austin Stone. All surfaces shall be clean and free of dirt, dust, paint, sealers, form releases, curing agents, grease, oil, or any inhibiting mixed material that would impede the penetration of Polymer to the substrate pores.
• Any material that would cause delamination must be removed.
• Pressure washing, sand blasting, water blasting, grinding & shot blasting are suggested procedures for removing contaminants from the surface.
• On existing surfaces not subject to these conditions, pressure washing and 30 parts water to 1 part acid should be considered for smooth, steel troweled, or formed concrete.

Austin Stone Mixing & Application

1. Bonding Primer: Begin with a properly prepared dry substrate. Apply Austin Stone Primer undiluted over saturated substrate. Scrub polymer into the surface with a medium to stiff broom or brush. Make sure to cover all areas that will be receiving the overlay mixture. Allow this primer to dry to a clear film. Do not walk on the dried primer unless the use of proper footwear that will not tear the film from the concrete has been attained. Highly suggest the use of spiked footwear.
2. Depending on the desired application, the addition of 5 to 6 quarts of clean potable water per 50 lb bag of Austin Stone.
3. Slowly add the 50 lb mixture of overlayment to the water and mix for approx. 3 to 4 minutes, until a lump-free consistency has been obtained.
4. The mixed material should rest for 5 minutes, then aggetate again for 30 seconds to a minute. Add water if needed.
5. Place the material onto the surface and screed with a gauge rake set to the desired thickness. Smooth out the material with a Fresno or handheld trowel to consolidate the material.

Austin Stone Precautions

• Apply between the temperatures of 60-100 degrees Fahrenheit.
• Allow 4-7 days of curing before opening to vehicular traffic.
• Keep installed material from freezing for a minimum of 48 hours.