Application

Bitumastic  is used to waterproof basement walls, showers and patio floors (prior to tiling), as well as external walls prior to covering with stone tiling.

BITUMASTIC  - Elastic bitumen mastic

Cat No. 228

Version: 3/16

Method of application:

Before application, clear the surface thoroughly to remove all dirt. Roll with cement mortar at all wall-floor seams.

1. To waterproof basement walls:

1. In case the basement floor was sealed with bitumen membranes, apply low heat over the membranes to deposit the dirt and bring out melted bitumen.
2. Spray a coat of Bitumastic Primer over the sheets over the basement floor, using 250-300 gr/m². Allow to dry 30-60 minutes. In case the basement walls are not clean enough from dust, apply Bitumastic Primer at the same quantity.
3. Spray Bitumastic, using a total quantity of 3-4.5 kg/m², depends on depth of the basement and waterable level. It is recommended to spray in 3 layers, allowing a short waiting interval between layers as initial drying.

     Additionally, it is recommended to brush thoroughly the first layer of

     Bitumastic towards the substrate (also when applied by spraying), in

     order to prevent formation of bubbles. Allow to dry for 5 days after

2. Spread a Geotextile Matt, 200 gr/m², over the waterproofing layer and

      then, spread smooth protection sheet made of HDPE as Protect 5 prior

      to covering.

2. 2. To waterproof bathrooms & shower floors prior to tiling:
3. Apply a coat of Bitumastic Primer, using 300 gr/m², over horizontal surfaces and the rolled seams. Allow to dry 1-3 hours.
4. Apply a coat of Bitumastic, 5 kg/m², on the horizontal surfaces and rolled seams.. Allow to

dry for 6-8 hours.

1. Apply a second coat of Bitumastic. 1.5 kg/m², Allow to dry 24 hours.
   Fill in sand, lay the tiles, or lay ceramic tiles directly onto the sealing layer through adhesion.

BITUMASTIC  - Elastic bitumen mastic

Cat No. 228

Version: 3/16

3. 3. To waterproof small patio floor prior to tiling:

General: The infrastructure shall be a stable concrete infrastructure and not foamed concrete (light concrete).

1. Apply or spray a coat of Bitumastic Primer using 250-300 gr/m², over the horizontal surfaces and the rolled seams. Allow to dry for 1-2 hours.
2. Apply a coat of Bitumastic on the horizontal surfaces and the rolled seams. Use 1.5 kg/m² of Bitumastic.

      Allow to dry for 4-6 hours.

1. Apply a second coat of Bitumastic, 1.5 kg/m². Allow to dry for 12 hours.
2. Apply a third coat of Bitumastic, Using 1.5 kg/m². In case this is the final coat, Allow to dry for 5 days (without rain) prior to tiling. In case there are additional coats, allow to dry for 6-8 hours.
3. In case of patio floor bigger than 10 m², apply forth layer of Bitumastic, 1.5 kg/m². Allow to dry for 5 days (without rain) prior to tiling.
4. In case of patio floor bigger than 15 m², sink Polyfabric (polyester fabric) in the fresh material between second and third coats.
5. In case of bigger patio floors, advise with the producer.
6. Fill in sand and lay the tiles, or lay ceramic tiles by direct adhesion onto the sealing layer.

BITUMASTIC  - Elastic bitumen mastic

Cat No. 228

Version: 3/16