Single-Component Polyurea Waterproof Coating & Primer
Excellent Weather Resistance | Waterproof Protection | Strong Adhesion | Fast Curing | Abrasion Resistant | Easy Application
JinHua's Single-Component Polyurea Waterproof Coating & Primer is a high-performance, weather-resistant protective coating designed for waterproofing, surface priming, and substrate protection. Featuring excellent adhesion, water resistance, and abrasion resistance, it forms a durable protective film that helps shield surfaces from moisture, dust, and everyday wear.
Its single-component, air-curing formulation eliminates the need for mixing multiple components, simplifying application and improving installation efficiency. Suitable for concrete, glass, metal, and compatible plastic substrates, this versatile coating provides reliable surface protection for construction, industrial, and decorative applications.
• Touch-Dry Time: Approx. 90 Minutes
• Subsequent Operations: After Approx. 120 Minutes
• Application Humidity: 30%–75% RH
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TDS
Excellent Weather Resistance & Long-Lasting Protection
JinHua's Single-Component Polyurea Waterproof Coating & Primer is engineered to deliver excellent weather resistance and dependable surface protection under changing environmental conditions. Once cured, it forms a durable, water-resistant protective film that helps shield coated substrates from moisture, dust, and everyday environmental exposure. Its weather-resistant properties make it a versatile solution for compatible indoor and outdoor applications, including concrete surfaces, exterior walls, glass panels, and metal structures. By combining reliable surface protection with long-lasting coating performance, this single-component polyurea coating helps maintain the appearance and durability of treated surfaces.

Reliable Waterproof Protection & Moisture Resistance
Designed for effective surface waterproofing and moisture protection, JinHua's Single-Component Polyurea Waterproof Coating forms a continuous, water-resistant protective film that helps reduce moisture penetration and protect compatible substrates from water-related deterioration. Its waterproof, dust-proof, and anti-soiling properties provide multiple layers of surface protection for concrete floors, walls, metal panels, and other suitable materials. The protective coating also helps minimize the accumulation of dust and surface contaminants, making treated surfaces easier to clean and maintain. Suitable for a wide range of building and industrial applications, this waterproof coating and primer combines dependable moisture resistance with practical surface protection.

Strong Adhesion & Excellent Multi-Substrate Compatibility
JinHua's Single-Component Polyurea Primer is formulated to provide strong adhesion and reliable bonding performance across a wide variety of substrates. It is suitable for concrete surfaces, glass panels, aluminum, stainless steel, and compatible engineering plastics, including PET, PVC, ABS, and PS. Adhesion testing on glass, aluminum, stainless steel, and the specified plastics achieved a 4B rating according to ASTM D3359, demonstrating reliable coating adhesion under the tested conditions. When applied to properly cleaned, dry, and prepared surfaces, the primer forms a durable protective film that helps reduce the risk of peeling and delamination. Its versatile substrate compatibility makes it a practical choice for architectural surface protection, industrial maintenance, metal protection, and specialized priming applications.

Single-Component Formula, Fast Curing & Easy Application
JinHua's Single-Component Polyurea Waterproof Coating & Primer features a convenient, ready-to-apply formulation that eliminates the need for mixing with a separate hardener, simplifying preparation and reducing the risk of incorrect mixing ratios. The coating cures through exposure to air and can be applied evenly using a roller on properly prepared substrates. Under suitable application conditions, it reaches a touch-dry state in approximately 90 minutes, while subsequent operations may begin after approximately 120 minutes. This fast-curing performance helps reduce waiting time between application stages and improve overall workflow efficiency. Combining simple application, rapid drying, and reliable protective performance, this one-component primer offers a practical coating solution for construction, commercial, and industrial surface protection projects.

How to Apply Single-Component Polyurea Waterproof Coating & Primer
Step 1: Surface Preparation
Ensure the substrate is clean, dry, and structurally sound. Remove dust, oil, wax, and loose particles. Sand uneven surfaces and repair damaged areas before application.
Step 2: Prepare the Working Area
Keep the application area free from dust, debris, and airborne contaminants. Maintain suitable environmental conditions to achieve a smooth and uniform coating finish.
Step 3: Apply the Coating
Apply the single-component primer evenly onto the prepared substrate using a roller. No separate hardener mixing is required. Ensure uniform coverage across the surface.
Step 4: Allow the Coating to Cure
Allow approximately 90 minutes for the coating to become touch-dry. Subsequent operations may proceed after approximately 120 minutes under suitable conditions. Avoid water contact, foot traffic, and abrasion during the initial curing period.

OEM/ODM Customization & Private Label Solutions
As a professional protective coating manufacturer, JinHua provides flexible OEM/ODM services for Single-Component Polyurea Waterproof Coating & Primer to meet the diverse needs of distributors, contractors, and private-label brands worldwide. Our customization solutions include packaging specifications, private-label designs, branding, and application-oriented product development, subject to technical evaluation.
With experienced R&D specialists, modern manufacturing facilities, and strict quality control procedures, JinHua supports customers from product selection and packaging development to bulk production and delivery. Whether you are expanding your waterproof coating product line or developing a customized protective primer under your own brand, we offer reliable manufacturing support and professional technical assistance.
Important Precautions for Application
To achieve reliable adhesion, smooth coating appearance, and consistent protective performance, proper surface preparation and environmental control are essential when applying JinHua's Single-Component Polyurea Waterproof Coating & Primer.
Surface Preparation
The substrate must be completely clean, dry, and structurally sound before application. Remove dust, oil, wax, loose particles, and other contaminants. Repair damaged areas and sand uneven surfaces to help prevent pinholes, cratering, and coating delamination.
Temperature & Humidity Control
The recommended application relative humidity is 30%–75% RH. At temperatures below 15°C, the coating's leveling performance may decrease significantly, potentially resulting in uneven surfaces or an orange-peel appearance. Ensure suitable working conditions before application.
Dust-Free Application Environment
Keep the working area free from airborne dust, debris, and flying insects during application and curing. Avoid dust-generating activities and unnecessary personnel movement to maintain a smooth, clean coating finish.
Protection During Initial Curing
The coating reaches a touch-dry state in approximately 90 minutes, and subsequent operations may proceed after approximately 120 minutes under suitable conditions. During initial curing, avoid water contact, foot traffic, heavy objects, scratching, and abrasion.
Substrate Compatibility Testing
For substrates not specifically listed in the technical data sheet, conduct a small-area adhesion test before full-scale application. Compatibility testing is also recommended when using the primer with additional coating layers or specialized waterproofing systems.
Storage, Shelf Life & Safe Handling
Proper storage and handling are essential for maintaining the quality and application performance of JinHua's Single-Component Polyurea Waterproof Coating & Primer.
Store the product in its original, tightly sealed container in a cool, dry, and dark environment at 5°C–28°C, protected from direct light and moisture exposure. Under recommended storage conditions, the unopened product has a shelf life of 12 months from the date of manufacture.
As the single-component formulation is air-curing, prolonged exposure to air after opening may cause moisture absorption and incomplete curing. Use the product as soon as possible after opening and keep the container sealed when not in use.
During handling and application, wear nitrile protective gloves and avoid direct contact with skin and eyes. Do not swallow the product, and keep it away from unsupervised children. Always consult the latest Technical Data Sheet (TDS) and Safety Data Sheet (SDS) before use.
Why Choose JinHua as Your Waterproof Coating Manufacturer?
Shenzhen Jinhua Electronic Materials Co., Ltd. is an experienced manufacturer specializing in resin materials and protective coating solutions. We provide reliable manufacturing services, application-oriented technical support, and flexible OEM/ODM customization to meet the requirements of global distributors, coating brands, and industrial customers.
With a 20,000 m² manufacturing facility, 8 automated production lines, and an annual production capacity exceeding 10,000 tons across our product portfolio, JinHua combines manufacturing capabilities with continuous product development and quality management.
Our experienced R&D team supports product selection, application evaluation, and customized coating development. From private-label packaging to large-volume supply, JinHua is committed to delivering consistent product quality, responsive technical support, and dependable long-term cooperation.
Looking for a Reliable Waterproof Coating Manufacturer?
JinHua offers OEM/ODM customization, private-label packaging, bulk manufacturing, and technical support for Single-Component Polyurea Waterproof Coating & Primer. Contact our team to discuss your application requirements, customization options, and project needs.
Email: sales@jinhuaglue.com
Specifications
| Product Code | PU919-01 |
| Product Type | Single-Component Clear Primer |
| Appearance | Yellow, Transparent Liquid |
| Curing Mechanism | Air Curing |
| Viscosity (25°C) | 305 ± 10 mm²/s |
| Touch-Dry Time | Approx. 90 Minutes |
| Subsequent Operations | After Approx. 120 Minutes |
| Application Humidity | 30%–75% RH |
| Storage Temperature | 5°C–28°C |
| Shelf Life | 12 Months (Unopened) |
FAQ
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What is Single-Component Polyurea Waterproof Coating & Primer?
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JinHua's Single-Component Polyurea Waterproof Coating & Primer is a one-component, air-curing protective coating designed for surface priming, waterproof protection, and substrate maintenance. It forms a durable, water-resistant film with strong adhesion, abrasion resistance, and anti-soiling properties, making it suitable for concrete, glass, metal, and compatible plastic surfaces.
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Does Single-Component Polyurea Waterproof Coating provide good weather resistance?
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Yes. JinHua's Single-Component Polyurea Waterproof Coating is designed to offer excellent weather resistance and durable surface protection. Its protective film helps shield compatible substrates from moisture and changing environmental conditions, making it suitable for selected indoor and outdoor applications. Actual outdoor performance depends on substrate preparation, exposure conditions, and application requirements.
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Is Single-Component Polyurea Waterproof Coating suitable for outdoor waterproofing?
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JinHua's weather-resistant protective coating can be considered for suitable outdoor surfaces requiring water-resistant protection, such as compatible concrete, wall, and metal substrates. However, application-specific testing is recommended before use in exposed outdoor environments. For roofing, balconies, or other complete waterproofing systems, the required waterproofing performance and system compatibility should be verified before installation.
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What surfaces can Single-Component Polyurea Primer be applied to?
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JinHua's Single-Component Polyurea Primer is suitable for concrete panels, walls, glass, aluminum, stainless steel, and compatible plastics, including PET, PVC, ABS, and PS. It provides versatile surface protection across architectural and industrial applications. For substrates not specifically listed, a small-area adhesion test is recommended before full-scale application.
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How strong is the adhesion of JinHua's Single-Component Polyurea Primer?
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According to ASTM D3359 adhesion testing, JinHua's PU919-01 primer achieves a 4B adhesion rating on glass, aluminum, stainless steel, PET, PVC, ABS, and PS substrates. This demonstrates reliable bonding performance under the tested conditions. Proper substrate cleaning, drying, and surface preparation are essential for achieving consistent coating adhesion.
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Does Single-Component Polyurea Waterproof Coating require mixing with a hardener?
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No. Unlike conventional two-component coating systems, JinHua's Single-Component Polyurea Waterproof Coating & Primer does not require mixing with a separate hardener. The product uses an air-curing mechanism, simplifying preparation and reducing the risk of incorrect mixing ratios. It can be applied directly onto properly prepared surfaces using a roller.
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How long does Single-Component Polyurea Waterproof Coating take to dry?
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Under suitable application conditions, JinHua's Single-Component Polyurea Primer reaches a touch-dry state in approximately 90 minutes. Subsequent operations may proceed after approximately 120 minutes. Drying performance may vary with temperature, humidity, and substrate conditions. Avoid water contact, foot traffic, and abrasion during the initial curing period.
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How do you apply Single-Component Polyurea Waterproof Coating & Primer?
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First, ensure the substrate is clean, dry, sound, and free from oil, wax, dust, and loose particles. Repair damaged areas and sand uneven surfaces where necessary. Keep the application area free from airborne contaminants, then apply the primer evenly using a roller. Allow the coating to cure under suitable environmental conditions before beginning subsequent operations.
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What temperature and humidity conditions are recommended for application?
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The recommended application relative humidity for JinHua's PU919-01 primer is 30%–75% RH. At temperatures below 15°C, its leveling performance decreases significantly, potentially causing uneven surfaces or orange-peel effects. The working environment should be heated appropriately before application when temperatures are too low.
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Can Single-Component Polyurea Primer protect metal surfaces from corrosion?
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Yes. JinHua's Single-Component Polyurea Primer can be used for corrosion protection on suitable metal surfaces, including aluminum and stainless steel. Once cured, its adherent, water-resistant protective film helps protect metal substrates from moisture-related deterioration while improving surface appearance. Application-specific corrosion testing is recommended for highly demanding environments.
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Can Single-Component Polyurea Primer be used under other floor coatings?
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PU919-01 is designed for surface priming, including cement flooring substrates. However, compatibility with epoxy, polyurethane, polyaspartic, or other topcoat systems should be evaluated before application. A preliminary test is recommended to verify intercoat adhesion, curing behavior, and overall coating performance.
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What is the shelf life of Single-Component Polyurea Waterproof Coating & Primer?
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JinHua's PU919-01 has a shelf life of 12 months from the manufacturing date when stored unopened in a cool, dry, dark environment at 5°C–28°C. Keep the container tightly sealed and protected from light. After opening, use the product as soon as possible, as prolonged exposure to air may cause moisture absorption and incomplete curing.