Weberprim PS | Silane-Based Surface Conditioning Primer | Primer Before Polysulfide Joint Sealant Application
WEBERPRIM PS
Weberprim PS is a silane-based, single-component surface primer. The product does not form a film layer on the applied surface. Instead, it creates a chemical bond between the substrate and the material, maximizing adhesion performance. It is specifically designed for polysulfide-based joint sealants and is part of Weber’s new-generation surface preparation product range.
Areas of Use
According to the Weber technical data sheet, the product delivers high performance on the following surfaces:
On Concrete Surfaces
- Newly cut concrete joints
- Polysulfide joint sealant applications
On Wooden Surfaces
- Provides strong adhesion with sealant materials
- Improves integration between the sealant and the substrate
On Fiberglass Surfaces
- High surface energy thanks to its silane structure
In Industrial Flooring Applications
- Surface preparation before joint sealing in areas exposed to intensive chemical and mechanical loads
For Polysulfide Joint Sealant Applications
- Improves adhesion
- Strengthens chemical bonding
- Extends service life
Advantages
- Does Not Form a Film Layer: Its transparent structure does not interfere with coating or sealing applications.
- Excellent Surface Conditioning: Provides optimum adhesion on concrete, wood, and fiberglass surfaces.
- Enhances Chemical Bonding: Reacts with polysulfide sealants to provide long-lasting adhesion.
- Ideal for Newly Cut Joints: Improves performance in freshly cut concrete joints.
- Transparent and Non-Staining Formula: Does not create aesthetic concerns.
- Fast Application Process: Short waiting time improves labor efficiency.
- Suitable for Industrial Areas: Can be safely used on floors exposed to heavy loads.
Application
Surface Preparation
- The surface must be clean, dry, and free from dust.
- Oil, grease, dirt, and paint residues must be removed.
- Newly cut concrete joints should be thoroughly cleaned.
Application Method
- Single-component product; no mixing is required.
- Apply a thin coat using a roller or brush.
- Polysulfide sealant can be applied once the surface becomes completely transparent.
- Dust accumulation must be avoided before sealant application.
Application Temperature
- Ideal application temperature: +5°C to +35°C
Technical Specifications
| Property | Value |
|---|
| Composition | Silane-based surface conditioner |
| Components | Single-component |
| Film Formation | Does not form a film layer |
| Application Area | Walls, Floors, Ceilings |
| Color | Transparent |
| Suitable Substrates | Concrete, Wood, Fiberglass |
| Intended Use | Adhesion-promoting primer before polysulfide joint sealant application |
| Packaging | 2.5 kg |
Important Considerations
- The substrate must be dry and clean; do not apply to wet surfaces.
- Since the product does not form a film layer, it should be applied in a thin coat.
- The surface must remain dust-free before sealant application.
- Avoid contact with water or solvents after application.
- Ensure that the substrate temperature is suitable in industrial environments.
- Excessive product consumption should be avoided.
Frequently Asked Questions
Which joint sealant products is it compatible with?
It is compatible with polysulfide-based joint sealants.
Does it form a film layer?
No, it is a transparent surface conditioning primer.
Can it be applied to wet surfaces?
No, the surface must be dry and clean.
Can it be used on concrete?
Yes, it is specifically designed for newly cut concrete joints.
Can it be used on wooden surfaces?
Yes, it provides high adhesion performance.
What is the waiting time before sealant application?
The product reacts quickly, and sealant can be applied once the surface becomes transparent.
Is the product single-component?
Yes, it is ready to use directly from the container.
How does it perform on industrial floors?
It provides high adhesion and long-term durability on floors exposed to heavy loads.