Dow Corning Dowsil DC Construction Primer P Silicone & Sealant Primer HAN2577

Dow Corning Dowsil DC Construction Primer P Silicone and Sealant Primer 500ml HAN2577

Barcode: 5413278250933

Product Code: 3282261

Colour: Clear

Size: 500ml in a Safety Tin

Dow Dowsil DC Primer P is an air drying primer supplied as a solution of reactive materials in solvent, also known as Dow Corning Construction Primer P is suitable for use on substrates such as natural stone, masonry and glass fibre-reinforced concrete, also suitable for metal substrates, such as Kynar resin painted aluminium, when properly prepared. Promotes adhesion of silicone sealants to masonry, stone, concrete and metal surfaces film-forming primer resists adhesion degradation due to water immersion, proprietary alkoxy silane resin formulation in solvent convenient one-part formulation, provides more uniform and stronger bonds

Dow Corning Dowsil Construction Primer P – Silicone and Sealant Primer 

Achieve superior adhesion and long-lasting performance, specially formulated to enhance the adhesion of silicone sealants to difficult or porous surfaces, this premium primer is essential for professional construction projects. It is designed to prepare surfaces such as concrete, brick, masonry, and other challenging substrates, ensuring a strong and durable bond between the surface and the sealant. This product is ideal for both interior and exterior applications, providing the foundation for reliable, high-performance sealing.

Why Choose Dow Corning Dowsil Construction Primer P?

Certain surfaces can hinder the adhesion of silicone sealants, leading to premature joint failure or compromised performance. The Dow Dowsil Construction Primer P is engineered to improve the bonding strength of silicone and other sealants, particularly on porous or hard-to-adhere substrates. By preparing the surface for optimal adhesion, this primer helps ensure that joints remain secure and flexible over time, even when exposed to harsh environmental conditions. This makes it a critical component in applications such as structural glazing, cladding, expansion joints, and facade sealing.

Key Features

• Enhances Adhesion: Improves the bond between silicone sealants and difficult surfaces, such as concrete, masonry, stone, and metal Kynar resin painted aluminium.
• Essential for Porous Surfaces: Prepares porous materials to ensure long-term durability and adhesion.
• Improves Performance in Harsh Conditions: Strengthens the bond to resist extreme environmental factors, including temperature fluctuations, UV exposure, and moisture.
• Easy Application: Simple to apply with a brush or cloth, allowing for quick and efficient surface preparation.
• Professional Reliability: Reduces the risk of joint failure, ensuring secure and long-lasting seals.

Benefits of Using Dow Corning Dowsil Construction Primer P

• Improved Bond Strength: Creates a strong, durable interface between the substrate and sealant, reducing the risk of premature failure.
• Long-Term Durability: Protects against environmental wear and tear, ensuring seals remain intact under harsh conditions.
• Enhanced Flexibility: Supports the sealant’s ability to absorb movement without losing adhesion.
• Professional-Grade Results: Provides the reliability and performance expected on high-profile and large-scale construction projects.
• Simple Application: Can be applied quickly and easily with standard tools, allowing for efficient preparation on-site.

How to Use Dow Corning Dowsil Construction Primer P

For best results, follow these steps when applying Dow Corning Dowsil Construction Primer P:

1. Clean the Surface: Ensure the substrate is clean, dry, and free from dust, grease, and contaminants. Use an appropriate cleaner if necessary.
2. Shake Well: Shake the primer container thoroughly before use to ensure proper mixing.
3. Apply the Primer: Using a clean brush or cloth, apply a thin, even coat of primer to the surface. Avoid applying excess material as this will make the bond weaker.
4. Allow to Dry: Let the primer dry completely. This typically takes 30 minutes, depending on environmental conditions.
5. Backer Rods and Bond breakers: now use the backer rod or bond breaker.
6. Apply the Sealant: Once the primer is fully dry, apply the silicone sealant as instructed. Ensure full contact between the sealant and the primed surface.

Specifications

• Brand: Dow Corning (Dowsil)
• Product Name: Construction Primer P – Silicone and Sealant Primer
• Quantity: Single unit
• Application: Surface preparation for silicone and sealant adhesion
• Compatibility: Suitable for most sealants always do an adhesion test prior to full commitment.
• Surface Types: Concrete, masonry, stone, metal Kynar resin painted aluminium, and other porous or hard-to-adhere materials
• Drying Time: Typically 30 minutes (varies based on temperature and humidity)

Frequently Asked Questions

1. Why do I need a primer before applying silicone sealant?
Some surfaces, particularly porous or rough materials like concrete, masonry, and stone, can weaken the bond between sealant and substrate. Dow Corning Dowsil Construction Primer P enhances adhesion by preparing the surface, ensuring the sealant bonds securely and maintains flexibility over time. This reduces the risk of premature joint failure and extends the life of the seal.

2. Can this primer be used with different types of silicones and sealants?
Yes, Dow Dowsil Construction Primer P is compatible with most sealants. This versatility allows you to use it across various applications and substrates without worrying about compatibility issues It is always prudent to do an adhesion test on sealants that have not been used before.

3. How should I apply the primer for best results?
The primer should be applied evenly using a clean brush or cloth. Apply a thin coat and allow it to dry completely before applying the sealant. Avoid applying too much primer, as excessive amounts can affect adhesion performance. Always follow the manufacturer’s instructions for optimal results.

4. How long does the primer take to dry?
The primer typically dries within 30 minutes, depending on environmental factors such as temperature and humidity. It’s important to let the primer dry fully before applying the sealant to ensure proper adhesion.

5. Can I use this primer for both interior and exterior applications?
Yes, Dow Corning Dowsil Construction Primer P is designed for both interior and exterior use. It provides strong adhesion and protection against environmental factors, making it suitable for a wide range of construction and sealing projects.

"Important Note this is a non returnable product "

While in our care all primers are kept in a climate controlled store room.

We recommend storing this product out of direct sunlight until used.

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