Product Introduction

Non-exposed Tar Urethane (PU-N)

Strengths
  • Does not contain lethal and does not smell.
  • Better spreadability than Tar Urethane
  • Outstanding workability.
Use
  • Non-exposure waterproofing of rooftop buildings such as apartments.
  • Non-exposure waterproofing of toilets, sauna rooms, etc.
  • Non-exposure waterproofing of underground buildings
  • Inside and outside walls of a basement
Packaging Unit
  • Motif(C) : 8kg / CAN
  • Hardener(D) : 24kg / CAN
Mix Proportion
  • Motif(A) : Hardener(B) = 1 : 3 = Weight Ratio
Construction Floor Plan
Quality Standard

- KS F 3211 (2015) : Construction Film Waterproofing material

Item Performance Standard
Tensile Performance Tensile Strength Tensile Strength (N/㎜²) Above 2.0
Coefficient of Expansion (%) Above 550
Tensile Product (N/㎜) Above 294.2
Tearing Performance Tearing Strength (N/㎜) Above 12.8
Reliability on Temperature Tensile Strength Ratio (%)

-20

Above 100

60

Above 35
Coefficient of Expansion between
engagement portion during rupture (%)

-20

Above 300

20

Above 350

60

Above 200
Heat Expansion Characteristic Expansion Rate (%) Above -4, Below 1
Tensile Performance Tensile Strength Ratio(%) Heat Treatment Above 80, Below 150
Promotional Exposure Distance

-

Alkali Treatment Above 60, Below 150
Acid Treatment

-

Coefficient of Expansion (%) Heat Treatment Above 500
Promotional Exposure Treatment

-

Alkali Treatment Above 500
Acid Treatment

-

Deterioration during Elongation Heat Treatment There shall be no fractured balance or
apparent deformation of any test.
Promotional Exposure Treatment

-

Ozone Treatment

-

Adhesion Performance Untreated

N/²

Above 0.7
After Repeated Cold Temperature Treatment Above 0.5
Coating State No lifting or detachment of the coating shall
be allowed on any test specimen.
Fatigue Resistance There shall be no perforation, tear, or fracture of
the coating on any test specimen specifimen.
Flow Resistance Performance Flow Length (㎜) No more than 3 on any test specimen
Crease Formation Not on any test specimen.
Solid (%) Indicator Value ±3
Construction Method
    1. Arranging Grounding Impregnation
  • Dry enough.
  • Remove foreign substances such as rust, remains, dust, sand, grease, paint, and etc. by adversely affecting the adhesion of urethane Waterproofing material to the grounding impregnation.
  • Since there is high risk of leakage around the penetration pipes and drains, remove 3-5 cm groove for sealing.
  • The drain should be protected with plastic to prevent clogging.
  • Seal the cracks in the slab and attach the insulation tape.
    2. Apply Primer
  • After arranging the grounding impregnation, apply primer with rollers, brushes, and sprays.
  • Make sure to not over-apply the primer.
  • Sufficiently dry and harden to avoid detachment.
    3. Mixing Urethane
  • Combine the subject matter and hardener with the specified mixture ratio.
  • Use a plastic container with a round bottom and a container with a capacity of appropriately 1.2 times the total amount to mix.
  • If necessary, add 3-10 percept of the specified solvents according to season and weather. Then, mix sufficiently.
  • Use a motor stirrer for 5 or more minutes to stir the combined subject and hardener.
    4. Apply urethane
  • Apply urethane from the vertical within the pot time with trowel, brush, or roller.
  • Second application shall start immediately after the texture dries up (There is a risk of interlayer detachment if the surface becomes contaminated or completely hardened.)
  • Apply evenly so that bubbles are not created.