Spray Polyurea Waterproof Coatings Office Building for Swimming Pool Industrial 3 Years Graphic Design Onsite Training
Polyurea Waterproof Coatings For Modern Building Construction, Vessel etc.
It is two components spray-up elastic coating applied in dry and warm condition. Component A is a half prepolymer through the reaction between hydroxyl terminal compounds and isocyanate. Component B is a mixture consisting of amino terminal resign and amino terminal chain extender, including activator, a little bit pigments and dispersive additives.
Advantages
Fast curing on any surfaces, slopes and vertical planes without sagging;
Excellent bonding functions with all materials, including cements, steel plates and wood plates;
Excellent sealing quality, water resistance and penetration resistance;
Resistance to long-term acid, alkali and salt erosion;
Good thermal stability: it can be used below 100° C for a long time;
Good flexibility and mechanical properties, even in -40° C
Excellent tensile strength and elongation;
Excellent cracks deformation resistance;
Wear resistance and impact resistance.
Typical properties
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Item |
Requirements |
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Solid content, % ≥ |
96 |
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Gel time, s ≤ |
45 |
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Surface drying time, s ≤ |
120 |
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Tensile strength, MPa ≥ |
10.0 |
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Elongation at break, % ≥ |
300 |
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Tear strength, N/mm ≥ |
40 |
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Fold ability at low temperature, ℃ ≤ |
-35 |
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Water tightness, 0.4MPa×2h |
Pass |
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Thermal tensile ratio, % |
Elongation ≤ |
1.0 |
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Shrinkage ≤ |
1.0 |
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Water absorptivity, % ≤ |
5.0 |
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Bonding strength on dry substrate, MPa |
2.0 |
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Hardness, Shore A ≥ |
70 |
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Resistance to impact/kg·m |
0.6 |
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Wear resistance, (750g/500r)/mg ≤ |
40 |
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Aging at modulus |
Heat aging |
No cracking and deformation |
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Artificial weathering |
No cracking and deformation |
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Thermal treatment |
Tensile strength retention rate ,% |
80-150 |
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Elongation at break, % ≥ |
250 |
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Fold ability at low temperature, ℃≤ |
-30 |
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Alkali treatment |
Tensile strength retention rate ,% |
80-150 |
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Elongation at break, % ≥ |
250 |
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Fold ability at low temperature, ℃≤ |
-30 |
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Acid treatment |
Tensile strength retention rate ,% |
80-150 |
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Elongation at break, % ≥ |
250 |
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Fold ability at low temperature, ℃≤ |
-30 |
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Salt treatment |
Tensile strength retention rate ,% |
80-150 |
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Elongation at break, % ≥ |
250 |
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Fold ability at low temperature, ℃≤ |
-30 |
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Oil treatment |
Tensile strength retention rate ,% |
80-150 |
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UV aging, 1500 h |
Tensile strength retention rate ,% |
80-150 |
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Elongation at break, % ≥ |
125 |
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Fold ability at low temperature, ℃≤ |
-25 |
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Artificial weathering, 1512h |
Tensile strength retention rate ,% |
80-150 |
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Elongation at break, % ≥ |
250 |
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Fold ability at low temperature, ℃≤ |
-30 |
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Storage
The material should be stored by clean, dry and sealed pails at dry and well-ventilated shade places, avoiding direct sunshine. The temperature in stored places should between 10° C and 40° C. It can not be closed to fire sources. The normal shelf time is 12 months.
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