BestSeal AC408

BestSeal AC408 is used for waterproofing and protecting items such as:

• Gutters, balconies, terraces, roof slabs, toilet floors, metal sheet roofs, etc.

• Outdoor enclosure walls, upstanding walls, wall bases on roofs, etc.

• Concrete, wood, and metal structures, etc.

• Sealing nail holes in metal sheet roofs, concrete cracks, joints, tile joints, etc.

• Very high tensile strength, adhesion strength, and elongation (no primer required).

• Weather resistant, UV resistant, reduces heat radiation absorption, and long-lasting durability.

• Root puncture resistant, making it suitable for landscaped floors, flower beds, etc.

• Resistant to detergents, alkalis, animal and vegetable oils and fats, seawater, etc.

• One-component, easy to apply with tools such as: rollers, brushes, sprayers, etc.

• Water-based, non-toxic, and does not pollute water sources (including domestic water) upon direct contact with the product.

• Odorless and environmentally friendly.

SURFACE PREPARATION

• The surface to be waterproofed must be clean, sound, and free from oil, grease, dust, moss, mold, excess cement, and other contaminants, etc.

• Surface defects (cracks, voids, etc.) must be repaired and patched using suitable specialized BestRepair products from Bestmix (contact technical support for advice).

• Saturate the entire surface with clean water, but do not allow water to pond on the surface.

APPLICATION PROCEDURE

Mixing the product

• The product is pre-mixed; simply stir well before use.

Application

• BestSeal AC408 can be applied with a brush, short-nap roller, or a suitable sprayer.

• To ensure waterproofing performance, BestSeal AC408 must be applied in at least 2 coats perpendicular to each other so that the material fully covers the surface to be waterproofed.

• The waiting time between the 2 coats is 4-24 hours depending on weather, temperature, and ventilation conditions.

Note

• For highly absorbent surfaces, when applying the first coat, BestSeal AC408 should be diluted with about 10-12% clean water by weight to enhance the penetration of the material deeper into the surface.

• Do not apply more than the consumption rate of 1.2 kg/m² per coat.

• For roof slab surfaces, a slope must be created before applying the waterproofing.

• Do not apply in rainy conditions.

• If it rains during application, stop work immediately and promptly cover the area just applied to protect it from direct exposure to rainwater.

• For surface areas regularly subjected to mechanical impact during service, a cement-sand mortar layer should be applied 24-48 hours after the final coat to protect the BestSeal AC408 layer from mechanical impact that may damage the surface structure of the material.

• If a protective mortar layer is not applied, the material must be cured for at least 7 days before use.

• BestSeal AC408 self-cures in air and does not require water to moisten the surface after application.