Watertite Xtreme

Our Ultimate Waterproofing Protection for up to 20m deep basements

Based on bond to concrete technology and enhanced with superior bitumen component, the system provides the highest level of waterproofing, even in the most challenging conditions.

Either in the case of a structure under high hydrostatic pressure or a complex commercial building with a very deep excavation, Watertite Xtreme is the recommended solution by our most experienced waterproofing experts, working in the GCC region for more than 25 years.

Step by step guide

What you will need

Polyprime SB, Polyproof Xtreme, Bitutape TS,  Bitumastic

STEP 1: SURFACE PREPARATION:

The surface to receive the membrane shall be clean, sound, solid and to be free from sharp protrusions and standing water. Clean thorough of all contaminants like dust, traces of curing compound, oil and grease, where necessary for primer or liquid membrane application. All surface imperfections, protrusions, structurally unsound and friable concrete shall be removed and repaired with a suitable Polycrete concrete repair mortar.

STEP 2: PRIMING

Priming is required only at pile heads to get sufficient bonding of Bitutape TS and substrate. 

Mix the contents of the pail/drum of Polyprime SB prior to the application to remove any sediment. Apply the primer @ 4-6 m²/lt by a brush, roller or an airless spray at the corners and pile heads.

Allow the primer to dry and become tack free.

STEP 3: APPLICATION 

Horizontal Area: The installation of membrane is done in loose laid manner on the blinding concrete in order to keep the system independent of structural movements. Begin installation from closer to project peripheries, with the PP fleece facing upwards. Begin membrane application by unrolling the sheet and aligning the side and end overlaps. In horizontal and vertical joinery area, membranes shall be overlapped with 300 mm. The overlapping joint is recommended to stay on horizontal area, by bringing the vertical membrane down.

Vertical Area : The areas of shoring wall shall be of smooth surface, that can be facilitated by concrete / plastering / plywood / suitable approved method for the support of membrane. Align and fix membrane on vertical heights using mechanical fixtures such as securing with wooden reapers. Align and fix subsequent rolls using same method and by securing side overlaps. During vertical extensions of membrane based on stages of structure lifting and after removal of reapers, cut any damaged portion of membrane and allow sufficient overlapping of min. 300 mm and continue with the mechanical fixtures on next level.

STEP 4: OVERLAPS 

Side overlaps, ends overlaps and cut portions joineries shall be with 100mm overlapping, using a double-sided tape Bitutape TS – 100mm wide. One side of the release film is removed and the twin sided tape is adhered to the previous layer of membrane and the second side release film is removed and subsequent membrane layer is carefully placed over it, by ensuring the secured seal with firm press using a steel roller.

The membrane termination around pile head is now to be securely sealed with CJ Seal elastomeric liquid membrane by creating an angle fillet around the pile and further encapsulated using Polygrout EY 3000 epoxy grout.