01
Spray Polyurea Coating ST-P (Series)
Product Introduction
Spray polyurea coating is a two-component elastic coating formed by on-site spraying of component A and component B. The components A and B are transported to the spray gun through a metering pump of a dedicated spraying equipment, and are quickly mixed and sprayed onto the surface of the base layer, quickly reacting and solidifying into an elastic, tough waterproof, anti-corrosion, and wear-resistant coating.
Sprayed polyurea coating has the following characteristics:
1. Convenient for construction and can be applied in any shape.
2. Solvent-free, environmentally friendly and can be applied in thick layers.
3. Excellent physical properties and good adhesion to all kinds of substrates.
4. Quick drying and seamless coating.
5. Outstanding resistance to oil, water and various chemical media.
6. Good elasticity, high elongation, good aging resistance and the same service life as the substrate.
Simple construction and reaching walking strength in 2 minutes.
Purpose
Suitable for wear-resistant heavy-duty flooring, high-level waterproofing, high salt spray corrosion metal protection, tank anti-corrosion, facility explosion-proof, etc. It is widely used in water conservancy and hydropower, military, rail transit, petrochemical, sewage treatment, water pipeline anti-corrosion, garbage power generation, etc.
Performance indicators
|
Type |
ST-P211 |
| Tensile strength（MPa） | ≥10 |
| Elongation at break（%） | ≥300 |
| Solid content，% | ≥96% |
| Surface drying time，s | ≤120 |
| Hardness (Shore A) | ≤75 |
| Tear strength，N/mm | ≥40 |
| Resistant to liquid media | No rust, no bubbles, no peeling |
| Low temperature flexibility/℃ | ≤-35℃ |
| Impermeability | 0.4MPa，120min，Impermeability |
| Weather resistance | Good |
| Abrasion resistance（750g，500r） | ≤40mg |
Construction process suggestions
1) Clean the base layer: The base layer inspection and acceptance should achieve a smooth surface, no sanding, no peeling, no honeycomb pitting, no unevenness and other defects. The surface of the base layer should be kept dry and there must be no visible water.
2) Primer layer: It is advisable to use spraying, brushing or rolling to evenly apply the special sealing primer on the surface of the base layer (the primer layer is prohibited to be constructed if the base material surface is not completely treated). The next step can be constructed only after it is completely dry. The construction interval should not exceed 24 hours.
3) Polyurea layer: Use special equipment at 70 degrees for thermal spraying. Generally, spraying is carried out 2 hours after the primer construction is completed and before 24 hours. The ratio of component A to component B is 1:1. The single-packaging is 40kg/400kg. The construction thickness is about 2 to 3mm to ensure no missed coating, no accumulation, uniform spraying and one-time molding in place.
(The thickness can be adjusted according to the design requirements.)
4) Topcoat layer: Use brushing or spraying method for construction. The construction thickness is 0.2 to 0.5mm and it is sprayed or brushed evenly.
Product Introduction
Sprayed polyurea coating is a two-component elastic coating sprayed on site and formed by component A and component B. Components A and B are delivered to the spray gun through the metering pump of special spraying equipment. After rapid mixing, they are sprayed onto the base surface and quickly react and solidify into an elastic, tough waterproof, anti-corrosion and wear-resistant coating.
Sprayed polyurea coating has the following characteristics:
1) Fast curing, gelation in 10 seconds, and continuous spraying on vertical and curved surfaces without sagging.
2) 100% solid content, no volatile organic compounds, a pollution-free green material that meets environmental protection requirements.
3) Dense coating, no seams, and strong impermeability.
4) Outstanding resistance to media and corrosion prevention performance, and can withstand the erosion of water, acid, alkali, salt, oil and other media.
5) High mechanical strength, good elongation, and the hardness can be adjusted according to needs.
6) Can withstand high and low temperature cyclic impacts and can withstand short-term high temperature impacts.
7) Excellent physical properties and good adhesion to all kinds of substrates.
8) Good weather resistance, no pulverization, cracking or falling off after long-term outdoor use.
9) Fast construction speed, with a single machine's single-day construction area of more than 1000 square meters.
10) Good elasticity, high elongation, good aging resistance and the same service life as the substrate.
11) Simple construction and reaching walking strength in 2 minutes.
Uses
Suitable for wear-resistant and heavy-load floors, high-level waterproofing, high-salt-spray-corrosion-resistant metal protection and tank anti-corrosion, facility explosion-proof, etc. It is widely used in water conservancy and hydropower, military, rail transit, petrochemical, sewage treatment, anti-corrosion of tap water pipelines, waste power generation, and more.
Performance indicators
|
Type |
ST-P311 |
| Tensile strength（MPa） | ≥16 |
| Elongation at break（%） | ≥400 |
| Solid content，% | ≥97% |
| Surface drying time，s | ≤300 |
| Hardness (Shore A) | ≤75 |
| Tear strength，N/mm | ≥35 |
| Resistant to liquid media | No rust, no bubbles, no peeling |
| Impermeability | 0.4MPa，120min，Impermeability |
| Adhesive strength，Mpa | 2.5 |
| Weather resistance | Good |
| Abrasion resistance（750g，500r） | 30mg |
Construction process suggestions
1) Clean the base layer: The base layer inspection and acceptance should ensure a flat surface, no sanding, no peeling, no honeycomb pitting, and no unevenness or other defects. The surface of the base layer should be kept dry and there must be no visible water.
2) Primer layer: It is advisable to use spraying, brushing or rolling to evenly apply the special sealing primer on the base layer surface. (Construction of the primer layer is prohibited if the surface of the base material is not completely treated.) The next step can be constructed only after it is completely dry. The construction interval should not exceed 24 hours.
3) Polyurea layer: Use special equipment at 70 degrees for thermal spraying. Generally, spraying is carried out 2 hours after the primer construction is completed and before 24 hours. The ratio of component A to component B is 1:1. The single-packaging is 40kg/400kg. The construction thickness is about 2 to 3mm to ensure no missed coating, no accumulation, uniform spraying, and one-time molding in place.
(The thickness can be adjusted according to the design requirements.)
4) Topcoat layer: Use brushing or spraying method for construction. The construction thickness is 0.2 to 0.5mm and it should be sprayed or brushed evenly.