
Versatic ester PVA copolymer bonding admixture for shotcrete
BATIMIX Versatic Type II is an aqueous vinyl versatic-ester copolymer resin adhesive. It is used to permanently bond plaster, stucco, and concrete to damp or dry concrete and masonry surfaces.
BATIMIX Versatic Type II is primarily used to enhance the properties of cement mortars used in the following applications:
BATIMIX Versatic Type II is used:
BATIMIX Versatic Type II provides the following benefits:
BATIMIX Versatic Type II is not a hazardous material. However, it should not be swallowed or allowed to come into contact with skin and eyes. Suitable gloves and goggles should be worn. For additional information, kindly refer to the product’s Material Safety Data Sheet.
BATIMIX Versatic Type II meets the following standards:
Surface Preparation – If using this product as a slurry bond coat, the concrete must be a minimum of 3 days old. Concrete surfaces must be clean, rough and free from all oil, dirt, debris, paint, cement laitance and unsound concrete which might affect uniform adhesion. The surface must be prepared mechanically using a scabbler, bush hammer, shotblast, or scarifier which will give a surface profile of a minimum 3 mm and expose the large aggregate of the concrete. Acid etching is not acceptable.
The final step in cleaning should be the complete removal of all residues with a vacuum cleaner or pressure washing. Allow the concrete surface to dry. Do not place slurry coat on standing water. All concrete must possess an open surface texture with all curing compounds and sealers removed. All areas should be pre-wetted to reduce moisture loss. Do not place product on standing water.
Bonding – For bonding toppings with this product, it is strongly recommended that a slurry coat be used rather than using this product as a primer by itself. After the surface has been prepared, prime all areas with a slurry coat before the topping is applied. Follow the mixing and placing instructions listed below. Place the topping on the slurry coat before the slurry coat dries out.
Mixing – Small quantities may be mixed with a drill and “jiffy” mixer. Use a paddle type mortar mixer for large jobs. All materials should be in the proper temperature range of 5 to 32ºC. Add the appropriate amount of latex for the batch size and then add the dry material. If using BATIMIX Versatic Type II with a pre-packaged product, reduce the amount of water added to compensate for the latex addition. Mix a minimum of 3 minutes. The mixed product should be quickly transported to the repair area and placed immediately.
Placement – Discharge material onto the floor. Slurry Application – Spread the slurry with a stiff bristle broom until the suggested coverage rate is achieved. Topping Application – For patching, spread with a trowel, come-a-long, or square tipped shovel to a thickness that matches the surrounding concrete. Finish by hand troweling. On large floor areas, use screed strips as guides in combination with vibratory screeding to level, Compact and finish by hand or machine trowel.
Finishing – Finish the repair material to the desired texture. Typical texture is a broom or sponge float finish. Do not add additional water to the surface during the finishing operation.
Curing – To prevent surface cracking, a moist cure should be maintained for 24 hours followed by use of a curing compound. Do not use a solvent based curing compound on latex modified mortars.
Clean-up – Clean tools and equipment with water before the material hardens.
Precautions / Limitations:
For proper products usage, Holderchem provides complete technical and laboratory support as well as on-site assistance pertaining to mix design, admixture selection, and materials testing.
BATIMIX Versatic Type II has a minimum shelf life of 12 months if kept unopened and stored at temperatures ranging from 2 to 50 ºC.