Two-Component Brushable Polyurea 801A

Two-Component Brushable Polyurea 801A
Technical Data Sheet

Description
801A brushable polyurea is a solvent-free, two-component, hand-scrapable elastic polyurea material. It features strong adhesion, high strength, good elasticity, bright and plump coating film, excellent wear resistance, and low sensitivity to moisture.

Advantages
Convenient construction, no need for high-temperature and high-pressure spraying equipment;
Solvent-free, environmentally friendly, and curable at room temperature;
Excellent physical properties, with good adhesion to various substrates;
Good leveling property, seamless coating, and smooth surface.

Application
801A brushable polyurea is mainly used in projects where spray construction is difficult, serving as a substitute for spray polyurea. It can also be used as a local repair material for spray polyurea materials.

Properties

Surface Pretreatment
Before construction, the substrate surface must be clean, free of oil, dust, etc. For metal substrates, sandblasting or manual (mechanical) grinding is recommended to achieve a surface cleanliness of Sa2.5 grade, followed by applying a matching anti-rust primer. For concrete substrates, surface defects such as cracks and hollowing should be repaired first, then a matching primer should be applied. When used as a repair material for spray polyurea, local repair with hand-applied polyurea can be conducted immediately after the spray polyurea construction. For repairing old coatings, the surface of the old coating should be ground first before repair.

Coating Method
- Stir component B evenly (no sedimentation, uniform color) before use.
- Accurately weigh components A and B at a weight ratio of 1:1.0, mix them evenly manually or mechanically, and then proceed with construction. (Mechanical stirring for 1-2 minutes is usually sufficient.)
- Apply by hand scraping, and the maximum interval between coats should not exceed 48 hours.
- Brushable polyurea is a reactive two-component coating. It should be prepared and used immediately according to on-site needs to avoid gelation and scrapping.
- The recommended thickness is 1-3mm (adjustable according to user requirements), and the single-coat construction thickness is suggested not to exceed 1mm.

Construction Precautions
- Strictly follow the proportion for preparation.
- The substrate temperature during construction should be at least 3℃ higher than the dew point.
- Unused component A should be sealed and stored after nitrogen filling.
- This system has 100% solid content, and no more than 5% of the total amount of special thinner is allowed to be added during on-site construction for dilution.
- Ensure good ventilation when constructing in enclosed spaces.

Labor Protection
During the use of this product, labor protection equipment such as work clothes, goggles, gloves, and gas masks must be worn. The construction site should be well-ventilated, and fire sources should be isolated and kept away from heat sources.

Packaging specification
20 kg/drum; Customized packaging is available upon customer request.
Shelf life: 6 months

Storage and transportation
This product should be stored in a cool, ventilated, and dry warehouse. It is strictly prohibited from being exposed to rain and sunlight, and should be isolated from fire sources and kept away from heat sources. The storage temperature should be 10-40℃.
Under the condition of unopened original packaging, the storage period of this product is 6 months from the date of production. If it exceeds the storage period, it can be inspected according to the items specified in this product standard, and can still be used if it meets the technical requirements.
This product contains no organic solvents and can be transported as non-dangerous goods. It is strictly prohibited from being exposed to rain and sunlight during transportation, and should comply with the relevant regulations of the transportation department.

Declaration
The protective effect of any coating largely depends on the coating construction. Construction factors such as surface treatment and film thickness will directly affect the service life of the coating. Users should meet the agreed construction conditions when using this product.
Our company is only responsible for the quality of the coating product itself.
The data in this manual are theoretical values or obtained through test accumulation. As the product is continuously improved, some data may change without prior notice.