Using BC Bitumen Coating:

BC Bitumen Coating is easy to remove formwork and clean.

BC Bitumen Coating can be diluted to create a waterproof membrane for load-bearing structures.

BC Bitumen Coating is used for the following types:

• Masonry surface.
• Reinforced concrete.
• All types of concrete structures.
• All structures such as ceramic or porcelain.
• Asbestos sheet, cement mortar layer.

Advantages of BC Bitumen Coating:

BC Bitumen Coating is not a finishing coating, durable to large temperature changes

BC Bitumen Coating affects the following properties:

• Easy to construct.
• Combined physical and chemical effects
• Make the concrete surface smooth and beautiful
• Leaves no marks on concrete surfaces.

BC Bitumen Coating is suitable for formwork used in humid curing environments.

BC Bitumen Coating Products:

Form / Color : Black

Packing: 20kg/can or 200kg/drum

Storage conditions: Store in dry conditions, away from direct sunlight and at temperatures between +5°C and +30°C

Shelf life: 24 months if stored properly in original unopened packaging.

BC Bitumen Coating Specifications

Specific gravity: ≈ 1.0

Flexibility: In the form of a soft liquid film at high temperatures

Inertness

Chemical resistance: Resistant to water, alkali, most salt solutions, some mild acids and alkalis

Fire resistance: Liquid: non-flammable

Dry form: non-flammable

Heat resistance:

Once hardened, it does not melt or sag under the influence of direct sunlight.

Construction of BC Bitumen Coating

Rate: Base layer: 0.075 – 0.1 kg/m2 (dilute with clean water according to the ratio BC: Water = 1:1)

Undiluted layer: 0.60 kg/m2

Surface preparation:

For new surfaces: Brushes or wooden boards may be used to clean loosely adhered samples, these surfaces must be approved. Any spots larger than 3 mm must be scraped off.

For old painted surfaces: All stains on the surface must be cleaned with a hard brush and microorganisms must be cleaned with a suitable fungicide and wait about 24 hours then wash with clean water.

For brittle lime surfaces: Clean and let dry (about 24 hours). For cracks, fill and let dry, then apply BC Bitumen Coating with fiberglass mesh. Concrete debris must be cleaned.

Construction conditions

Construction temperature: not below +5oC

Construction instructions:

Mixing: If using as a base coat, add the predetermined amount of clean water and stir well.

If used as a coating, simply stir and then apply.

Construction method/tools:

Make sure the surface is dry before applying BC Butimen Coating.

The primer coat must be applied thoroughly to ensure a firm finish and allowed to dry. The second coat can be applied as normal, thicker, with a good brush and then allowed to dry. Clean tools immediately after use with clean water.

Do not apply this product in wet weather or under direct sunlight.

Cleaning of Tools: Rinse all equipment and tools immediately after use with clean water. Once this product has dried, use mechanical means to clean.

Drying time: Under normal conditions, it is 4-6 hours, but in general, the best waiting time between two coats is 24 hours (when you can rub a wet finger down the newly applied surface and see no color change, it is dry).

Note during construction: Scaffolding must be assembled independently without affecting the construction. All defects in the structure must be repaired before constructing BC Bitumen Coating.