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Price Per Unit: $10.30
Price Per Box: $9.27
Use Adheseal PU 25 FC Polyurethane Sealant for: Sealing expansion joints, perimeter sealing, and general construction adhesive applications.
Adheseal PU 25 FC is a single-component, moisture-curing polyurethane sealant, designed for diverse construction and industrial applications. With exceptional elongation at break (600%) and a Shore A hardness of 25, it provides superior flexibility and durability. Its potable water compliance (AS/NZS 4020) and low VOC content (<1.5g/l) make it safe and versatile for various projects. This product is ideal for builders sealing precast panels, automotive trades bonding metal components, and marine trades sealing hulls.
Cure Time: Cures at 3mm per 24 hours, allowing for efficient project timelines. For example, sealing external cladding seams will reach a stable cure within 24 hours.
Coverage Rate: Coverage varies based on joint size, refer to the provided chart. A 10x10mm joint uses 6 linear meters per 600ml sausage.
Application Temperature Range: 5°C to 40°C, suitable for most Australian climates. It is important to apply within this range to ensure correct product curing and adhesion.
Chemical Properties: Excellent resistance to water, detergent solutions, dilute acids, alkalis, petrol, and oil. Provides a durable seal in challenging environments.
Key Features of Adheseal PU 25 FC Polyurethane Sealant
- High Elongation (600%): Accommodates significant structural movement, preventing cracks and leaks.
- Potable Water Compliant (AS/NZS 4020): Safe for use in applications involving drinking water.
- Low VOC (<1.5g/l): Meets strict environmental standards, ensuring safe application.
- Wide Temperature Range (-30°C to +90°C): Suitable for all Australian climates.
- Fast Curing: 3mm cure per 24 hours.
Why Choose Adheseal PU 25 FC Polyurethane Sealant:
- Durability: Withstands harsh Australian conditions, reducing maintenance.
- Flexibility: Accommodates building movement, preventing structural damage.
- Versatility: Suitable for diverse applications, simplifying inventory.
- Compliance: Meets Australian standards, ensuring safety and quality.
When to Choose Adheseal PU 25 FC Polyurethane Sealant versus Alternatives:
- Choose Adheseal PU 25 FC Polyurethane Sealant over silicone sealants when: You need high elongation and potable water compliance.
- Consider other options when: You require a faster cure time, or are working with aquariums or structural glazing.
Trade-Specific Applications for Adheseal PU 25 FC Polyurethane Sealant:
For Builders and Carpenters:
- Sealing expansion joints in precast and tilt-up panels.
- Adhering floor mouldings and skirting boards.
- Perimeter sealing of windows and curtain walls.
For Automotive Trades:
- Seam sealing and bonding metal cladding.
- Providing vibration-resistant seals in vehicle bodies.
- Adhering display signs and components.
For Marine Trades:
- Sealing hull joints and components.
- Providing durable seals for below waterline applications.
- Adhering fibreglass and other marine materials.
Application Information
- Required Tools: Caulking gun, spatula, masking tape, cleaning cloths, Xylene.
- Trade-Specific Tips: Ensure surfaces are clean and primed. Use backing rod for deep joints.
- Common Issues and Solutions: Avoid application in confined spaces. Clean uncured sealant with Xylene.
Storage and Shelf Life
- Storage Requirements: Cool, dry place between 10°C and 35°C.
- Shelf Life Information: 12 months in original packaging.
- Temperature Considerations: Avoid extreme temperatures to maintain product integrity.
Certifications and Compliance
- AS/NZS 4020: Potable water compliance.
- AS/NZS 1530.3: Low ignitability.
- ISO 11600: Joint sealing performance.
Frequently Asked Questions About Adheseal PU 25 FC Polyurethane Sealant
Q: Can this sealant be used in potable water applications?
A: Yes, Adheseal PU 25 FC is compliant with AS/NZS 4020, making it suitable for applications involving drinking water.
Q: What is the best way to clean uncured sealant?
A: Uncured sealant can be cleaned with Xylene. Use proper safety precautions when working with solvents.
Q: How do I prepare metal surfaces for optimal adhesion?
A: Slightly roughen the metal surface with an abrasive pad, then clean with Adheseal 50A surface prep. Allow 30 minutes to 2 hours before applying the sealant.
Q: Can this sealant be used in high-temperature environments?
A: Yes, it is suitable for service temperatures ranging from -30°C to +90°C, making it versatile for various industrial and construction applications across Australia.
Q: What is the significance of the low VOC content?
A: A low VOC content (<1.5g/l) means the product releases fewer volatile organic compounds, making it safer for indoor use and environmentally friendly.
Q: How do I ensure proper curing in different weather conditions?
A: Ensure application within the 5°C to 40°C range. Humidity also affects cure time, so allow for longer curing times in high humidity.
Use Adheseal PU 25 FC Polyurethane Sealant for:
- Sealing potable water pipes and tanks.
- Sealing expansion joints in concrete and precast panels.
- Perimeter sealing of windows and doors.
- Sealing metal cladding and fabrication joints.
- Adhering floor mouldings and skirting boards.
Why Use Adheseal PU 25 FC Polyurethane Sealant for:
- Fast curing for reduced project timelines.
- Potable water suitability for specialized applications.
- Low ignitability for enhanced safety.
- High flexibility for dynamic structures.
- Versatile application on various substrates.
How to apply PU 25 FC Polyurethane Sealant:
- Surface Preparation: Ensure surfaces are sound, clean, dry, and free from contaminants. Prime if necessary, especially for porous substrates or critical applications.
- Priming: Apply appropriate primer (Adheseal 50A for non-porous, Everflex Supaprime for porous) and allow to dry for 30 minutes to 2 hours.
- Joint Design: Aim for a 2:1 width-to-depth ratio. Use backer rod for joints over 10mm deep and bond breaker tape to prevent three-sided adhesion.
- Application: Cut nozzle at 45° for sealant or 90° for adhesive. Apply in a continuous bead, ensuring good contact with both sides of the joint.
- Tooling: Tool off with a moistened spatula within 5 minutes. Remove masking tape while sealant is still wet.
- Clean-Up: Clean tools and spills with Xylene while sealant is wet. Cured sealant can be removed mechanically.
PU 25 FC Polyurethane Sealant limitations:
- Not suitable for totally confined spaces due to moisture-curing requirements.
- Avoid use in aquariums or internal swimming pool applications with high chlorine levels.
- Not recommended for adhering mirrors or structural glazing without testing.
- May discolour copper and brass.
- Avoid contact with materials containing cleaning agents, solvents, or alcohol during curing.
- Not for use on bituminous, natural rubber, or EPDM rubber surfaces.
Safety precautions when using PU 25 FC Polyurethane Sealant:
- Personal Protective Equipment: Wear gloves, safety glasses, and respiratory protection in poorly ventilated areas.
- Ventilation: Use in well-ventilated areas. Avoid inhaling fumes.
- Handling: Wash hands thoroughly after handling. Avoid skin and eye contact.
- Storage: Store in a cool, dry place away from direct sunlight and extreme temperatures.
Adheseal PU 25 FC Polyurethane Sealant can be used on the following substrates:
- Masonry and Brick: Provides a durable and flexible seal for construction joints.
- Metal and Aluminium: Suitable for sealing metal cladding and fabrication joints.
- Timber: Ideal for sealing joints in timber structures, accommodating movement.
- Plastics: Adheres to various plastics, providing a reliable seal.
- Painted Surfaces: Compatible with painted surfaces, enhancing weatherproofing.
- Powder Coat: Provides excellent adhesion and long-term durability.
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