BestFloor AC350

BestFloor AC350 is used in the following cases:

• Repairing and restructuring floor surfaces damaged by aggressive attack, impact or mechanical abrasion, etc. during use.

• Re-leveling floor surfaces before laying PVC vinyl tiles, carpet or other specialized coverings on top.

• For concrete floors in areas with light to medium loads such as factory floors, laboratories, cleanrooms, hospitals, parking lots, swimming pool bottoms, water tanks, etc.

• The components are precisely pre-batched and homogenized at the factory, so they are easy to use and minimize risks during application.

• Good flowability and high self-leveling ability, making it very easy to apply.

• Limits shrinkage and surface cracking during curing.

• Fast, high strength development, putting the structure into use sooner.

• Enhances abrasion, oil, stain, moisture and water resistance of the floor surface.

• Increases the aesthetic value of the structure.

• Environmentally friendly, non-toxic, contains no chloride (Cl) that corrodes reinforcement.

• Suitable for Vietnam's climate conditions.

Surface preparation:

• The concrete floor surface must reach a minimum compressive strength of 20 MPa and a minimum tensile strength of 1.5 MPa, and must suit the actual service loads.

• Poorly bonded patches or weak concrete surfaces must be completely removed by mechanical means.

• Oil and grease stains, etc. must be thoroughly cleaned by the proper method.

• Smooth surfaces must be suitably roughened before application.

Mixing:

• Put component A into a clean container of suitable capacity and slowly add component B while continuously stirring (stirring speed about 400 ÷ 500 rpm) for about 05 minutes until the mixture is homogeneous and free of lumps.

• Let the mixture stand for about 03 ÷ 05 minutes, then re-mix before application.

Application:

• Apply a BestBond EP759 bonding coat (see the product's instructions) onto the surface prepared as described above.

• When the BestBond EP759 bonding coat turns transparent but is still wet, apply the BestFloor AC350 mortar layer on top. Pour continuously in strips 200 ÷ 300 mm wide, and use a notched trowel to spread the BestFloor AC350 mixture evenly to the required thickness, maximum 5 mm/layer.

• Use a spiked roller to assist leveling and de-aerating the material layer.

Notes:

• Use a mixer at a suitable speed; do not mix by hand, to ensure the required homogeneity.

• If the BestBond EP759 bonding coat is not used, the concrete surface must be saturated with water (no longer absorbing water) before applying BestFloor AC350 to avoid de-aeration that pinholes the material surface.

• To achieve the highest mechanical properties, the product after application must be cured according to the proper procedure, like other cement-based products. Minimize evaporative water loss using available materials such as water-soaked hessian, plastic sheeting, or curing compounds BestCure AC015 or BestCure SS015.

Cleaning:

• Clean tools with water after application and before the material cures.

Safety guidance:

• BestFloor AC350 may cause irritation to sensitive skin on prolonged contact. Wear a mask, gloves and safety goggles when using the product.

• If splashed into the eyes, nose or mouth, rinse immediately with plenty of clean water several times before going to the nearest medical facility for timely and proper treatment.