BITUFA PRODUCTS

Single-ply. Self-healing. Monolithic.

Flexobit is a dynamic waterproofing membrane that is fast and reliable. Ideal for for horizontal slabs, vertical blindside work, plaza decks, elevator pits, pile heads, joints, and even septic tanks, Flexobit is a torch applied modified bitumen offering monolithic seems and 5mm thickness.

What sets Flexobit apart?

1300% elongation with full recovery.
Self-healing compound.
No fillers. No compromises. Just premium SBS-modified bitumen with superior adhesion and durability.
3-D moldable: Forms to any shape—penetrations, corners, tiebacks—without cutting or accessories.
Seamless torch-welded installation: Creates tight, monolithic laps with no cover strips needed.
Faster installs—up to 20% faster than reinforced systems, especially in multi-pass applications.

With over 40 years of global performance, Flexobit is your trusted solution for high-performance, waterproofing.

Get watertight. Get Flexobit.

OVERVIEW

GENERAL

Non- reinforced, high elongation
High Performance SBS Technology with no fillers
Over 40 years proven record
>1300% Elongation with full recovery
Self-Healing Characteristics
Membrane easily forms to all flashing conditions
Suitable for below grade waterproofing applications including elevator pits,
expansion joints, pile heads, planter boxes, recesses and corners, and even septic tanks.

ADVANTAGE

196 mil thickness
1000 % elongation with full recovery
No reinforcement inside the membrane
High penetration resistance
Self-healing after puncturing
Easy anchoring and joining to concrete structures
3D moldable, which makes detailing work (corners, piles etc.) safe and fast
Easy application: once unrolled, the overlap can be immediately sealed by propane torch
Takes any shape without need for cutting
No fillers added to the compound
One layer of 196 mil Flexobit is superior to two or more layers of reinforced membranes

PACKAGING

Flexobit 1 Roll, 3.28' x 19.6', 70lbs
Flexowalll, 1 Roll, 3.28' x 24.6', 97 lbs

COLOR

Black

COVERAGE

Coverage w/4" lap
Flexobit: 0.56 Squares
Flexowall: 0.70 Squares

APPLICATION

APPLICATION METHOD

The product rolling is carried out to have the foil in contact with the concrete when directly unrolled (foil face exterior of the roll).
The over laps are welded with propane gas torch/dry heat air and roll pressed. For tanking application, the longitudinal overlaps are 100mm edge and the end overlaps are 150mm edge.
No additional cover strip is necessary. Optionally the membrane can be applied fully bonded.
For instance on difficult details and vertical walls.

SURFACE TREATMENT

Ensure the substrates are clean and dry.
Smooth and free of matter and conditions detrimental to bond and performance of the membrane.
For good adhesion to (vertical) substrates, use waterbased bituminous primer.

APPLICATION TEMPERATURE

Temperature: - 5°C to+ 40°C.
The membrane must be clean and dry.

STORAGE CONDITIONS

The rolIs should be protected against moisture and exposure to sunlight and be stored in horizontal position.
The rolls shouldn’t be stored near a source of heat.