Weberprim UV – UV-Resistant Exterior Primer
Weberprim UV is a high-performance exterior primer designed to balance surface absorbency and improve adhesion before decorative coatings and paints. Developed specifically for exterior façade applications, it helps enhance UV resistance and improves the performance, durability, and coverage of finishing coats. When used under the weber.tex UV paint system, it contributes to longer-lasting and more uniform exterior finishes.
What is Weberprim UV?
Weberprim UV is an acrylic-based exterior primer formulated to regulate substrate absorbency, strengthen adhesion, and reduce paint consumption. It creates an ideal surface for subsequent coatings, ensuring better coverage and improved long-term performance.
Key Advantages
- Helps improve UV resistance
- Enhances adhesion on absorbent surfaces
- Reduces topcoat paint consumption
- Promotes uniform paint distribution
- Provides effective results with a single coat
- Improves the durability and appearance of exterior coatings
Applications
Weberprim UV is used as a primer coat for exterior façade applications, including:
- Residential buildings
- Commercial buildings
- Renovation projects
- New construction façades
Suitable Substrates
- Cement-based renders
- Exposed concrete surfaces treated with weber.tec R, RK, or RM systems
- Rendered aerated concrete surfaces
- Properly prepared previously painted surfaces
Technical consultation is recommended for other substrate types.
Unsuitable Substrates
- Wet, damp, or dusty surfaces
- Wooden surfaces
- Metal surfaces
- Wallpaper-covered surfaces
Surface Preparation
- The surface must be clean, dry, and structurally sound
- Remove dust, dirt, grease, and loose particles
- Repair damaged areas before application
- Ensure the substrate is free from moisture and contamination
Application Conditions
- Ambient and surface temperature: +5°C to +30°C
- Avoid application under direct sunlight
- Do not apply in excessively hot or humid conditions
- Do not use on frozen surfaces or surfaces at risk of freezing
Application Instructions
Dilution
- Dilute with water at a ratio of 5:1 (primer : water)
Mixing
- Stir thoroughly until a homogeneous consistency is achieved
- Continue mixing occasionally during application to prevent settlement
Application
- Apply in a single coat using a textured roller or brush
- Ensure even coverage across the entire surface
Waiting Time
- Allow at least 12 hours before applying paint or decorative coatings
Drying Time
Coverage
- Approximately 8–11 m² per liter per coat
Actual consumption may vary depending on substrate absorbency and surface texture.
Technical Information
- Product type: Acrylic-based exterior primer
- Available colors: 5 color options
- Application tools: Roller or brush
- Shelf life: 12 months in unopened packaging under suitable storage conditions
Packaging
Storage
- Store in a cool and dry environment
- Keep containers tightly closed when not in use
- Protect from frost and freezing temperatures
- Avoid stacking pallets directly on top of each other
Warnings and Recommendations
- Do not apply on wet, damp, or dusty surfaces
- Clean tools with water before the material dries
- Drying times may increase in cold weather and decrease in warm weather
- Keep packaging sealed during storage
- Follow all application recommendations for optimal performance
Frequently Asked Questions (FAQ)
1. Which surfaces can Weberprim UV be applied to?
It can be applied to cement-based renders, exposed concrete, rendered aerated concrete surfaces, and properly prepared previously painted surfaces.
2. What is the drying time?
The minimum drying time is approximately 12 hours under normal conditions.
3. Does the product require dilution?
Yes. Weberprim UV should be diluted with water at a ratio of 5:1 (primer : water).
4. Can it be used on wooden surfaces?
No. The product is not suitable for wood, metal, or wallpaper-covered surfaces.
5. When can painting begin after primer application?
Painting or decorative coating applications can begin after a minimum waiting period of 12 hours.