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Use Sika® Primer-3 N for: Enhancing adhesion of sealants and adhesives on concrete, masonry, and metal surfaces.
Sika® Primer-3 N is an essential component for applicators seeking to achieve optimal adhesion with Sika sealants and adhesives. Its solvent-based formulation penetrates porous surfaces and prepares metals, ensuring a strong and durable bond. With its easy application and quick flash-off time, Sika® Primer-3 N streamlines the application process, saving time and enhancing the quality of the finished product.
Key Features of Sika® Primer-3 N
- Enhances Adhesion: Ensures a strong bond between sealants/adhesives and porous/metal substrates.
- Water Repellent: Provides added protection against moisture.
- Short Flash-Off Time: Speeds up the application process.
- Easy Application: Can be applied with a brush or roller.
- Versatile Use: Suitable for concrete, masonry, and various metals.
Technical Overview
Sika® Primer-3 N is a solvent-based epoxy resin compound with a density of approximately 1.00 kg/l and a viscosity of 10 mPas. Its composition is designed to penetrate and prepare surfaces, ensuring optimal adhesion for subsequent sealant or adhesive applications.
Chemical Properties: Solvent-based epoxy resin compound.
Application Temperature Range: +5 °C to +40 °C (41 °F to 104 °F), with a minimum 3 °C above dew point.
Application Information
- Required Tools: Clean brush or roller.
- Trade-Specific Tips: Ensure surfaces are thoroughly clean and dry. Apply only a thin, even coat. Reseal the container immediately after use.
- Common Issues and Solutions: Discard any primer that has gelled or separated. Ensure proper ventilation due to solvent content.
Storage and Shelf Life
- Storage Requirements: Store in dry conditions, protected from direct sunlight, between +5 °C and +25 °C.
- Shelf Life Information: 9 months from the date of production in original, sealed packaging. Must be used within one month of opening.
- Temperature Considerations: Avoid storing in extreme temperatures to maintain product integrity.
Certifications
- ISO 2811-1: Density measurement.
- ISO 3219: Viscosity measurement.
Frequently Asked Questions About Sika® Primer-3 N
Q: How long does Sika® Primer-3 N take to dry?
A: It requires a minimum flash-off time of 30 minutes and a maximum of 8 hours before applying sealant or adhesive.
Q: Can Sika® Primer-3 N be used on all types of metal?
A: It is suitable for various metals, but always ensure the metal is clean and free from contaminants. For specific metal types, consult the Sika pre-treatment chart.
Q: What surfaces is Sika® Primer-3 N compatible with?
A: It is designed for porous substrates like concrete, masonry, and metals.
Q: How should Sika® Primer-3 N be stored?
A: Store in dry conditions, protected from direct sunlight, between +5 °C and +25 °C. Use within one month of opening.
Q: What safety precautions should I take when using Sika® Primer-3 N?
A: Ensure adequate ventilation, wear appropriate PPE, and avoid skin and eye contact. Clean tools with appropriate solvent immediately after use.
Use Sika® Primer-3 N for:
- Preparing concrete and masonry surfaces for sealant application.
- Priming metal surfaces to enhance adhesive bonding.
- Improving adhesion of sealants in construction joints.
- Preparing surfaces for waterproofing applications.
Why Use Sika® Primer-3 N:
- Ensures strong and durable bonds.
- Enhances the performance of sealants and adhesives.
- Provides water-repellent properties.
- Easy and efficient application.
- Reduces the risk of adhesion failure.
Application Guide
- Ensure the substrate is clean, dry, and free from contaminants.
- Apply Sika® Primer-3 N with a clean brush or roller.
- Apply only once.
- Allow for a minimum flash-off time of 30 minutes and a maximum of 8 hours before applying the sealant or adhesive.
Sika® Primer-3 N limitations:
- Limited shelf life after opening.
- Must be used within one month of opening.
- Discard gelled or separated primer.
- Primers are not a substitute for proper surface cleaning.
Safety precautions when using Sika® Primer-3 N:
- Personal Protective Equipment: Wear gloves, eye protection, and appropriate respiratory protection in poorly ventilated areas.
- Ventilation: Ensure adequate ventilation during application.
- Handling: Avoid skin and eye contact.
- Disposal: Dispose of according to local regulations for solvent-based products.
Sika® Primer-3 N can be used on the following substrates:
- Concrete: Ensure surface is clean and free from laitance.
- Masonry: Prepare surface to be clean and dry.
- Steel: Remove rust and contaminants.
- Aluminum: Clean and degrease surface.
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