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Single Component Polyurethane Waterproofing Coating


Time:2019/7/19 17:09:13     Click Num:708

Product overview

Polyurethane waterproof coating is an one-component water-cured elastic coating. According to the water-cured feature of isocyanate-NCO, the prepolymer absorbs water in the air and turns to cured film.


Feature:

1. Easy to use

2. With good flexibility and high extensibility, this product has a good adaptability to the stretch or crack of the base level

3. Good surface adhesion to concrete, marble, wood, metal, pottery etc.

4. Anti-aging, corrosion resistance, excellent climate adaptation, acid and alkali resistance


Application

1. Gutter, canopy, and all kinds of roofs 

2. Underground: internal and external wall of basement, basement foundation slab, elevator shaft, tunnel, pipeline etc.

3. Joint: the settlement joint, expansion joint, construction joint, pipe in the wall and drain gully etc., also available for the caulking on the base level of the road, airport and tarmac


Construction:

1. The base need to repair must be clean, solid, with caulking and no water on it.

2. Detail processing: stick fiberglass or non-woven fabrics to the convex corner and concave corner, pipe orifice and deformation joint as the reinforced layer, and stick them firmly to the coating.

3. Protection: Protect the finished waterproof layer during their subsequent construction. Once it is damaged, please inform the waterproof company in time to repair.

                          

Notice

1. Keep the rest of coating sealed.

2. The construction environment should remain ventilation.

3. Avoid the rain for 12 hours after construction.

4. Don’t tread on waterproof layer for 24 hours after construction.

 

Technical index: Performance standard GB/T19250-2013

Item

Parameters

Solid content/(g/㎡) ≥

85.0

Surface drying time/h  ≤

12

Hard drying time/h ≤

24

Flow property

20min no obvious teeth marks

Tensile strength/MPa≥

2.00

6.00

12.0

Elongation at break%≥

500

450

250

Tear strength/(N/mm)≥

15

30

45

Low-temperature bending

-35℃ No crack

Watertightness

0.3MPa, 120min, watertight

Heat expansion rate/%

-4.0~-1.0

Bonding strength/MPa ≥

1.0

Water absorption/%

5.0

Stretching aging

Heat aging

No crack and deformation

Artificial climate aging

No crack and deformation

Heat treatment

Retention rate of  Tensile strength /%

80~150

Elongation at break%≥

450

400

200

Low temperature bending

-30℃ No crack

Alkali treatment【0.1% NaOH+ saturated solution of Ca(OH₂)168h】

 

Retention rate of  Tensile strength /%

80~150

Elongation at break%≥

450

400

200

Low temperature bending

-30℃ No crack

Acid treatment

【2% H₂SO₄solution,168h】

 

Retention rate of Tensile strength /%

80~150

Elongation at break%≥

450

400

200

Low temperature bending

-30℃ No crack

Artificial climate aging (1000h)

 

Retention rate of  Tensile strength /%

80~150

Elongation at break%≥

450

400

200

Low temperature bending

-30℃ No crack

Combustibility

B₂-E(fire 15s,, burn 20s,Fs≤150mm, no burning drip fire the filter paper)