Waterproof coverings of complex high bitumen, super elastic, produced by the mixture of asphalt bitumen, synthetic rubber APP and APAO. This is kind of hard cover plate. The thickness of these sheets KM 300SF reaches 3 mm (can be 4 mm), covering a surface is fine sand and the other is a polyethylene. The length of each roll is normally 10 meters and width of 1m. Details may vary depending on your needs.

Usage
Waterproof construction in most of works such as concrete, wall, floor tiles, roof, toilet ....

Compounds in products
Sand smooth 1-2 - Mixed 3 - Quality reinforced membrane combines 4-5-Quality Polyethylene Films

The typical FEATURE:

- Absolutely waterproof

- Suitable for high temperatures.

- Adhesion to all surfaces.

- With high mechanical properties.

- Resistant to chemicals and microorganisms.

- Anti-dawn cracks

- To withstand low temperatures.

PROCESS WATERPROOFING MEMBRANE BITUMEN SHEETS PART FOR ROOF AND WALL STRAIGHT FOR CONSTRUCTION PROJECTS:

I-SURFACE PREPARATIONS

Concrete surface cleaning, carving up the adhesive, plaque ... Miles defects and errors on the concrete floor surface. Ensure the concrete surface must be clean, dry and flat, not sharp.

II-MIDDLE GRADE CONSTRUCTION PRIMER

Primer coats lined with palm or rulo. After 24 hours if not affixed with waterproof up to this class must be scanned. Primer layer must be dry and not sticky.

III-INCIDENTS IN THE MAIN POINTS

Weaknesses such as joints, neck drains, cracks, the wall should be reinforced waterproofing primer layer to ensure safety.

IV-CONSTRUCTION MEMBRANE

The waterproof sheet of asphalt (Bitumen Membrane) were used by dry method (Torch type). The surface of the sheets are clean, dry, dust the sand where the concrete surface.

Before we scan the sheets lined with layers of asphalt bitumen; Asphalt primer (ASTM 41). Book coverings not sticky and must be aligned. Inside flap of the cover sheets must be adjacent to each other is 10 cm and the end flap of the cover sheets must be adjacent to each other is 15 cm.

Avoid construction of 90-degree angles and face coverings at the intersection of the inclined sandy cement 5 x 5 cm.

Next, spread half the sheets to guide difficult. We use propane gas to warehouse to dry the surface of the waterproof sheets, while the hard plastic in road bitumen sheets will melt out (to stick completely to the surface of the concrete was primed class Asphalt primer)

Seam construction of waterproof sheets by the end of the mat hard is under other sheets, then use the bay to rinse the surface and no longer difficult.

For the tilted roof, should construction of the coil vertical Waterproofing orthogonal to the surface so inclined, the following lap to put the sheets on the sheet before ....

PREVENTION

Waterproof coverings KM 300 SF does not affect human health.