
BestSeal B12 Cemmix
Cement-mixed waterproofing, high elasticity, surface crack-resistant
Advantages:
• Sand-free.
• Two effective waterproofing mechanisms.
• High elasticity and good adhesion.
• Resistant to harmful agents: ultraviolet rays, alkalis, moss, and mold.
• Friendly to human health and the environment.
BestSeal B12 Cemmix
Technical summary
Category
Retail
Cement-mixed waterproofing, high elasticity, surface crack-resistant
BestSeal B12 Cemmix is a modified inorganic-organic copolymer in emulsion form, used to mix with powdered cement to form a waterproofing membrane with a dual mechanism that effectively blocks water.
Technical documents
Product data
| Composition: | Modified copolymer based on a combination of inorganic and organic compounds. |
|---|---|
| Appearance | Emulsion, milky white |
| Mixing ratio: |
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| Consumption: | 0.5 kg BestSeal B12 Cemmix/m² per layer. A minimum of 2 layers should be applied. |
| Packaging: | 04; 18 kg/pail. |
| Storage: | Cool, dry place at an ambient temperature of 5°C - 35°C. |
| Shelf life: | 12 months from the date of manufacture. |
Applications
Walls
Advantages
• Sand-free.
• Two effective waterproofing mechanisms.
• High elasticity and good adhesion.
• Resistant to harmful agents: ultraviolet rays, alkalis, moss, and mold.
• Friendly to human health and the environment.
Application instruction
SURFACE PREPARATION
The surface to be waterproofed must be clean, hard, and sound, and cleaned of grease, dirt, moss, excess cement, and other contaminants, etc.
Surface defects (cracks, voids, etc.) must be repaired and patched using suitable specialized repair products from Bestmix (contact the technical support department for advice).
Saturate the entire surface with clean water but do not allow water to pool on the surface.
APPLICATION PROCEDURE
Material preparation: The cement must be well selected, of fine powder type, free from lumps, and within its shelf life.
Mixing:
First add BestSeal B12 Cemmix into a clean container of suitable capacity. Then gradually add the corresponding amount of powdered cement while the mixing paddle is still rotating (rotation speed of 400 - 500 rpm) until the mixture is homogeneous (no longer lumpy).
Application:
Use a brush, short-nap roller, or pressure spray gun to apply the product evenly over the entire surface to be waterproofed at an average consumption of 1.0 - 1.5 kg of mortar/m² per layer. A minimum of 2 layers should be applied, with the subsequent layer applied perpendicular or diagonal to the previous one (if using a brush) after the previous layer has dried.
Note:
The waterproofed surface must be protected from direct rainwater for a minimum of 4 hours from the time of application.
The allowable application time of the product is 90 minutes from the time of mixing with cement.
To adjust the shade (gray color) of the product, white cement can be mixed in at a suitable ratio, whereby the higher the proportion of white cement, the lighter (gray) the color of the waterproofing layer.
BestSeal B12 Cemmix is a modified inorganic-organic copolymer in emulsion form, used to mix with powdered cement to form a waterproofing membrane with a dual mechanism that effectively blocks water.