BITUSTICK ALE

Description

Aluminum surfaced solar reflective self adhesive waterproofing membrane

 

Bitustick ALE is a tropical grade polymer modified bituminous self adhesive waterproofing membrane. The bitumen compound is laminated onto an impervious, nonperforated, solar reflective aluminum surfaced film.

Properties

  • Good resistance to water & vapor
  • Aluminum surfacing, Excellent solar reflectance
  • Specially formulated for tropical climates
  • Self adhesive. Requires peeling off of the silicone film and sticking to the surface
  • Excellent adhesion to vertical and horizontal surfaces

This TDS is applicable for the United Arab Emirates only. Please contact your local Polybit sales office for the available TDS in your region

Step by step

The application temperature should be between 5°C to 55°C. Application procedures may vary slightly depending upon site conditions. The general recommended guidelines for the application of the self adhesive waterproofing system is as follows:

SURFACE PREPARATION

The surface shall be cleaned thoroughly of all contaminants like dust, traces of curing compound, oil and grease. All surface imperfections, protrusions, structurally unsound and friable concrete must be removed and repaired with a suitable Polycrete* concrete repair mortar.

PRIMING

Apply Polyprime SB* (Solvent based primer) @ 4- 6m²/L to a clean smooth and dry surface by brush, roller or spray. Allow the primer to dry prior to the application of the membrane. As the viscosity of the primer is low, it easily penetrates into the concrete pores which in turn promotes the adhesion between the membrane and the concrete surface. In addition, the primer also acts as a binder for the dust which gets accumulated on the surface even after cleaning.

ALIGNMENT

Start the installation of all membrane plies from the low point or drains, so the flow of water is over or parallel to the plies, but never against the laps. All overlaps at the membrane seams shall be installed so as to have "up" slope laps over "down" slope laps. Begin membrane application by unrolling the roll of Bitustick ALE membrane and aligning the side laps .

APPLICATION

Peel off the release film from the self adhesive side and start unrolling the membrane and press it to the surface. Smoothen the membrane from the center to the edges with a wooden press in order to remove any entrapped air. Furthermore, an iron roller shall be used for rolling on top of the applied membrane to ensure a proper and strong adhesion of the bitumen compound with the base surface. Side overlaps shall be a minimum of 50mm on the selvedge and end overlaps 100mm. When used as a flashing membrane on up-stands and parapets, Bitustick ALE membrane will be lapped with the base membrane and taken up on the up-stand and tucked inside the groove cut along the parapet wall. The tucked membrane will be sealed with a bitumen mastic sealant (Bitumastic)*