Chemicals Directory 

Bitumen Emulsion    BEM -B 4

Description  :

BEM -B 4 is based on bitumen modified with resin and special fillers. BEM -B 4 is in paste form, solvent free and very finely dispersed bitumen emulsion of approx 60% solution.

BEM -B 4 can be used as a waterproofing coating. It dries to a glossy black enamel-like finish and is resistant to weathering and many chemicals.

Uses:

BEM -B 4 is recommended for:

-         As a waterproofing insulation rendering for interior and exterior as well as watertight screeds

-         Waterproofing of foundation and basement below ground water level

-         Sealing of wall substrate before the facing brick work

Advantages:

BEM -B 4 provides following properties:

-         Good resistance to all acids and alkalis

-         Total compatibility with cement and lime

Coverage:

The consumption rate as a protective coating will depend on the absorbency of the substrate but should never be less than 400-500 gr/m² in two coats.

Surface Preparation:

The surface must be clean free from dust and any kind of contamination. Wash the  surface before application.

Application:

     BEM -B 4 coating can be done as below:

-         Ordinary application:

Dilute BEM -B 4 with 10-20% water  and apply it for covering of the surface. For better insulation do it in 2-3 coats.

-         Reinforced application:

This method is used for insulation of roofs, kitchen, bath and toilet floors and every other heavy duty application like waterproofing of tunnels and basements in areas where the ground water level is high and corrosive.

Mixing Ratio:

     BEM -B 4:                                     Two parts

     Water:                                      One part

     Sand:                                        2½ parts

     Cement:                                   One part

Apply the above rendering on the clean surface with trowel in layers of  5 to20mm thickness. 

Drying Time:

     4-20 hours depending on temperature, humidity and wind velocity. 

     Technical Data:

     Type:                                             Paste

     Color:                                           Black

     Sp.Gr:                                   0.95 kg/lit

     Shelf Life:    One year when unopened

     Storage Condition:        Free from frost 

     Packaging:        4,17 and 200 kg drums