Waterborne Polyurethane waterproof coating
Polyurethane waterproof coatings can be divided into one-component and two-component.
One-component polyurethane waterproof coating, also known as moisture-curing polyurethane waterproof coating, is a reactive moisture-curing film-forming waterproof coating. It is applied to the waterproof base layer during use and is cured to crosslink into a tough, soft and seamless rubber waterproofing membrane by reacting with moisture in the air.
High-strength polyurethane waterproof coating is a two-component reactive curing waterproof coating. High-strength polyurethane waterproof coating Two-component chemical reaction-cured isocyanate-terminated prepolymer obtained by polycondensation of polyether and isocyanic acid. Component B is composed of plasticizer, curing agent, thickener, accelerator, and filler. Composition of colored liquids. When used, the two components of A and B are uniformly mixed in proportion, coated on the surface of the waterproof base layer, and often cured by temperature crosslinking to form a rubber elastic film with high elasticity, high strength and durability, thereby waterproofing.
The waterborne polyurethane waterproof coating generally refers to the one-component polyurethane waterproof coating, and the oily refers to the two-component polyurethane waterproof coating; in comparison, the water performance is almost the same, the price is also cheaper, the most important thing to look at the use environment! However, waterborne polyurethane waterproof coatings are more environmentally friendly.
TESTING:
TEC DATA:
| item |
item |
Technical indicators
|
| |
|
I type |
II type |
III type |
| 1 |
Solid content% ≥ |
85 |
| 2 |
Dry time |
Surface dry ≤ |
12 |
| |
|
Actual dry ≤ |
24 |
| 3 |
Tensile Strength Mpa ≥ |
2.0 |
6.0 |
12.0 |
| 4 |
Elongation
at break ≥ |
500 |
450 |
150 |
| 5 |
Impervious 0.3Mpa 30Min |
impermeable |
| 6 |
Low temperature bending ºC ≤ |
-35 |
| 7 |
Bond strength Mpa ≥ |
1.0 |
| 8 |
Leveling |
Till 20min, No obvious teeth marks |
Polyurethane waterproof coating features
(1) It can be directly applied on various wet or dry base surfaces.
(2) The adhesion to the base surface is strong, and the polymer material in the coating film can penetrate into the fine slits of the base surface, and the following type is strong.
(3) The coating film has good flexibility, has strong adaptability to the expansion or cracking of the base layer, and has high tensile strength.
(4) Green, non-toxic, tasteless, non-polluting environment, no harm to the human body.
(5) Good weather resistance, high temperature does not flow, low temperature does not crack, excellent anti-aging performance, can withstand oil, wear, ozone, acid and alkali corrosion.
(6) The coating film is dense, the waterproof layer is complete, no cracks, no pinholes, no bubbles, small water vapor permeability coefficient, and has both waterproof function and gas barrier function.
(7) Simple construction, short construction period and convenient maintenance.
(8) Various colors can be adjusted as needed.
(9) Light weight, does not increase the building load.
USED SCOPE:
FAQ:
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SALES CONTACT:
SHOUGUANG MINGDING WATERPROOF MATERIALS CO.,LTD
SHOUGUANG FENGYUAN COMMERCIAL CO.,LTD
SALES MANAGER:
MS ALICE
MOBILE:008613606475587
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After sales service(24hours online)
MR YONG
MOBILE:008613305360330
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