Tobslak Tbyrothane 1K

Tobslak Tbyrothane 1K

Polyurethane-based liquid applied waterproofing membrane.


Tbyrothane 1K a single component, ready to use, highly elastic, cold applied polyurethane waterproofing which cures into a membrane with excellent abrasion, mechanical, chemical, thermal, and UV resistance, protective coating Paste form, fibre-free, single component coating material on a polyurethane base, solvent free.

Colors: White & Gray

Typical Applications:

  • Raft, Retaining wall, Roof top, Extended basements.
  • Green roofing for energy efficiency.
  • Flower beds and planter boxes.
  • Parking areas and vehicular traffic system.
  • Bridge decks, balconies, bleachers and terraces.
  • Wet areas such as toilets, bathrooms, kitchens as an under tiling membrane.
  • For roof waterproofing solutions in both new construction and restoration projects.
  • WTA-compliant retroactive waterproofing.

NOTE: Do NOT use Tbyrothane 1K in pools, hot tubs, or fountains unless under tile.


  • Solvent-free, Bitumen-free.
  • Forms Seamless Membrane without Joints or Leak Risk Areas.
  • Maintenance of Mechanical Properties at a Temperature Range of -20o C to +75o C.
  • Resistant to Detergents, Oils, and Common Chemicals.
  • Easy Local Repair, in Case Membrane is Mechanically Damaged.
  • Economical.
  • Waterproofed Surfaces Usable for Medium to Heavy Pedestrian Traffic, Dependent on Tobslak System Top Coat.
  • Waterproof membrane.
  • Complete drying and cross-linking occur rapidly, after just 18 hours.
  • Water pressure tight.
  • High tensile adhesion strength.
  • Highly flexible, elastic and crack-bridging.
  • UV-resistant, Resistant to frost and de-icing salt.
  • Can be plastered and painted over.
  • Can be applied as a grout, with a brush or trowel, or by spraying.
  • Applied above or below grade.
  • Permanently flexible - Elongation up to 70%.
  • Bridges cracks up to 1/16 inch (1.5 mm).
  • Accommodates substrate movement up to 1/25 inch (40 mils [1.0 mm]).
  • Resists strong hydrostatic pressure. Tested up to 200 psi (13.8 bar) positive side water pressure.
  • Can be painted or tinted.
  • Safe for potable water.
  • Stands up to pedestrian and light traffic.