1. Product Introduction
HP-251 Spray Polyurea Root Penetration Prevention Coating is an elastic polyurea material spray-applied on-site using specialized equipment, using semi-prepolymers,
polyethers, and chain extenders as its primary materials. This material is solvent-free, pollution-free, and does not affect plant growth. The continuous, dense,
and seamless coating prevents plant roots from damaging structures.
2. Product Features
The continuous spray-applied, dense, and seamless coating blocks plant root penetration, effectively protecting buildings and preventing cracking.
It is 100% solids, solvent-free, and heavy metal-free, making it harmless to plants and non-impacting their growth.
It offers excellent physical and chemical properties, including corrosion resistance, seepage control, and waterproofing.
Mechanized application ensures professional, convenient, and controllable application.
3. Applications
Waterproofing and anti-seepage for rooftop planting, green roofs, and roof gardens.
Waterproofing and anti-seepage for landscape gardens, urban greening, and park vegetation projects.
Protecting wall bases, foundations, and underground structures.
Waterproofing and anti-seepage of pools, landscape rivers and farms.
4. Technical parameters
5. Packaging Specifications
200L Iron Drum Packaging:
HP-251 A: 220kg
HP-251B (Colored Paint): 200kg
6. Storage and Transportation
Store the paint in a sealed container in a dry, cool, and well-ventilated area, away from sunlight and rain, and away from sources of ignition.
Under the original packaging and specified storage conditions, this product has a shelf life of 12 months from the date of production. After the shelf life has expired,
it may be inspected according to the specifications specified in this product standard. If it meets the technical requirements, it may still be used. After opening,
use as soon as possible. Reseal and store when not in use.
This product does not contain organic solvents and can be transported as non-hazardous goods. During transportation, avoid exposure to rain and sunlight,
and avoid violent collisions. Materials should be stacked neatly and stably, and comply with relevant transportation regulations.
7. Construction Conditions
Surface Requirements: The concrete surface should be cleaned, repaired, and polished to a certain degree of roughness. Ensure that the concrete is fully cured,
with a strength of C25 or higher and a moisture content below 6%. After the base surface is prepared, proceed to the next process as soon as possible.
Ambient Temperature and Humidity Requirements: The construction environment temperature should be between 5°C and 35°C, with the base surface temperature
at least 5°C above the dew point. The humidity range should be between 30% and 80%.
Ventilation: Maintain ventilation during construction, but avoid strong winds.
8. Painting Methods and Requirements
Before application, mix components A and B separately. If conditions permit, stirring during application is recommended.
HP-251 A: HP-251 B (base paint) = 1:1 (volume ratio). Do not add thinner.
Application must be performed by a professional construction team using professional spray equipment. The material temperature should be controlled
between 50°C and 80°C during spraying.
Generally, the next process can be carried out 12 hours after painting. If the interval between applications exceeds 24 hours, a coat of modified polyurethane
bridging agent must be applied before reapplying. If inclement weather such as rain occurs after painting, a coat of modified polyurethane bridging agent
must be applied before proceeding to the next step.
Under normal circumstances, the paint film should be cured for at least 7 days after application to ensure optimal performance.
9. Recommended Dosage
Under normal circumstances, the theoretical dosage for a 2mm thick film is 2.4kg/m².
10. Labor Protection and Safety
During application, please wear work clothes, gloves, a respirator, and other protective equipment. Avoid inhaling paint mist and skin contact with the paint.
If paint splashes on skin, immediately rinse with an appropriate detergent, soap, and plenty of water. If splashes come into contact with eyes,
rinse thoroughly with water and seek medical attention immediately.
Under normal application conditions, the dry coating is non-toxic. Please use with confidence.
11. Precautions
Before use, carefully read the product instructions and warning labels on the packaging and container, and familiarize yourself with the application method.
The information provided in this product manual is based on knowledge gained in the laboratory and in practice. Our products are constantly being improved,
and product performance parameters may change without prior notice. Please contact Huapo for support.
