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POLYBIT Bitustick R 250

Polymer modified bituminous self adhesive waterproofing and protection membrane

  • Protection membrane for bitumen based membranes, tapes and coatings on pipes and complicated profiles
  • High puncture and tear resistance
  • Enhanced UV resistance

Features and benefits

SBS modified bituminous, self adhesive sheet membrane laminated onto a tough polyester fleece to provide a highly superior waterproofing and protection membrane for underground concrete structures.

Properties

Description

POLYBIT® BITUSTICK R 250 is designed to provide protection to bitumen based membranes, tapes and coatings applied on vertical surfaces, pipes and other complicated profiles from puncture and exposure to weather. It provides an efficient waterproofing and damp proofing layer for underground structures.
Available pack size: 2.1mm

Documents and downloads

How to use

SURFACE PREPARATION & PRIMING

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.
Apply Polyprime SB* (solvent based primer) @ 4- 6 m²/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.

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 R 250
membrane and aligning the side laps. Re-roll the roll
halfway and stand on the unrolled portion to prevent
shifting. 

APPLICATION

Unroll only the required length and cut the piece to the desired shape. Place the membrane piece on the area to be covered and check whether they match with the profile of the marked substrate. Peel off the release film and carefully place the membrane with 50 mm overlap on the selvedges alone. The membrane shall be butt jointed at the ends using Bitutape TS as the underlayment to provide a watertight seal. 

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Frequently asked questions

It is recommended using solvent based bitumen primer conforming to ASTM D 41

No. We recommend liquid applied waterproofing coatings for wet areas

No further protection layer is required