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Use Adheseal PU-15 Low Modulus Elastomeric Polyurethane Joint Sealant for: Sealing movement and connection joints, window perimeter sealing, and general construction applications across various substrates.
Adheseal PU-15 is a premium low modulus polyurethane joint sealant designed for high movement applications. It provides exceptional flexibility and durability, making it ideal for Australian construction and industrial needs. Its ability to accommodate up to 30% movement and its resistance to mould and mildew ensure long-lasting performance in diverse environments.
Key Features of Adheseal PU-15 Low Modulus Elastomeric Polyurethane Joint Sealant
- Low Modulus (Shore A 15): Provides excellent flexibility, reducing stress on joints and preventing cracking.
- High Movement Capability (+/- 30%): Accommodates significant joint movement, ideal for expansion and contraction.
- Mould and Mildew Resistant: Suitable for humid environments, preventing fungal growth and maintaining aesthetics.
- Excellent Chemical Resistance: Resists water, detergents, and dilute chemicals, ensuring long-term durability.
- Paintable: Compatible with acrylic, oil, and rubber-based paints (test for flexibility).
Why Choose Adheseal PU-15 Low Modulus Elastomeric Polyurethane Joint Sealant:
- Long-Term Durability: Proven resilience and long-term performance reduce maintenance costs.
- Versatile Application: Suitable for various substrates and applications, simplifying inventory and project management.
- Australian Climate Ready: Wide service temperature range and UV resistance ensure reliable performance in diverse climates.
- Green Star Compliant: Low VOC content meets environmental criteria, promoting sustainable construction.
When to Choose Adheseal PU-15 versus Alternatives:
- Choose Adheseal PU-15 over standard polyurethane sealants when: High movement capability and low modulus are required, such as in expansion joints and curtain walls.
- Consider other options when: Structural glazing applications are required, as specialized glazing silicones are more appropriate.
- Cost-benefit comparison: Adheseal PU-15 provides superior movement and durability, offering long-term value compared to cheaper, less flexible alternatives.
Trade-Specific Applications for Adheseal PU-15 Low Modulus Elastomeric Polyurethane Joint Sealant:
For Builders and Carpenters:
- Sealing expansion joints in precast and tilt-up panels, ensuring structural integrity.
- Perimeter sealing of windows and doors, preventing water and air ingress.
- Adhering lightweight components, providing a flexible and durable bond.
For Glaziers:
- Sealing curtain walls, providing weatherproofing and structural support.
- Perimeter sealing of windows, ensuring airtight and watertight seals.
- Sealing joints between glass and framing materials, accommodating thermal movement.
For Metal Cladding Professionals:
- Sealing metal cladding joints, preventing water and air leaks.
- Sealing aluminium fabrication and bolted lap joints, ensuring structural integrity.
- Sealing materials with different thermal expansion coefficients, accommodating movement.
For Marine and Automotive Trades:
- Sealing joints in vehicular and marine manufacturing, providing durable and flexible seals.
- Adhering components in vehicle and boat construction, ensuring secure bonding.
- Sealing seams and joints exposed to harsh environmental conditions.
Technical Overview
Adheseal PU-15 is a low modulus, moisture-curing polyurethane sealant designed for movement and connection joints. Its formulation ensures high elasticity and durability, making it suitable for a wide range of applications. The sealant cures to form a permanently elastic and dustproof seal, accommodating movement up to 30%.
Chemical Properties: Polyurethane-based sealant with excellent resistance to water, detergents, and dilute chemicals. Its low modulus formulation ensures flexibility and durability.
Application Temperature Range: +5°C to +40°C (41°F to 104°F). This range allows for application in various Australian climates, ensuring the sealant remains workable in both warm and cool conditions.
Application Information
- Required Tools: Caulking gun, smoothing spatula, masking tape, and cleaning solvents (Xylene).
- Trade-Specific Tips: For builders, ensure proper joint design and use backing rod for optimal performance. Glaziers should ensure clean surfaces and use appropriate primers for non-porous substrates.
- Common Issues and Solutions: Avoid application in totally confined spaces due to moisture curing requirements. Ensure proper surface preparation and priming for optimal adhesion.
Storage and Shelf Life
- Storage Requirements: Store in a cool, dry place between 10°C and 35°C (50°F and 95°F).
- Shelf Life Information: 12 months in original packaging.
- Temperature Considerations: Avoid extreme temperatures to prevent premature curing or damage to the sealant.
Certifications and Compliance
- ISO 11600 F 25 LM: Sealant Classification for building joints.
- ASTM C793-05 & ISO11431: Accelerated testing for UV and weathering.
- European 2004/42/CE: Low VOC content compliant with environmental standards.
Frequently Asked Questions About Adheseal PU-15
Q: What is the best way to apply Adheseal PU-15 for a clean finish?
A: For a clean finish, use masking tape along the joint edges and remove it while the sealant is still wet. Apply the sealant with a caulking gun at a 45-degree angle, ensuring it fills the joint completely. Tool the sealant with a moistened spatula before it skins over.
Q: How does Adheseal PU-15 perform in extreme weather conditions?
A: Adheseal PU-15 is designed to withstand a range of weather conditions, including UV exposure and temperature variations. Its high elasticity and weather resistance ensure a durable seal, preventing cracks and maintaining integrity over time.
Q: Can Adheseal PU-15 be used on different types of building materials?
A: Yes, Adheseal PU-15 has excellent adhesion to various substrates, including concrete, metal, timber, and plastics. However, for optimal adhesion, especially on non-porous surfaces, use Adheseal 50A surface prep. For porous surfaces, use Everflex Supaprime.
Q: What are the technical properties that make Adheseal PU-15 suitable for movement joints?
A: Adheseal PU-15 has a low modulus and high elasticity, allowing it to accommodate joint movement up to ±25%. This flexibility prevents stress transfer to the substrates, ensuring long-term durability and preventing cracks in dynamic structures.
Q: What safety precautions should I take when using Adheseal PU-15?
A: Use in a well-ventilated area. Wear gloves, safety glasses, and, if necessary, a respirator. Clean any spills immediately with Xylene. If the product comes into contact with skin or eyes, wash thoroughly with water. Consult the SDS for detailed safety information.
Q: Can Adheseal PU-15 be used below the waterline?
A: Yes, once fully cured, Adheseal PU-15 is suitable for below waterline applications. This makes it versatile for marine environments and other applications where water immersion is a factor.
Q: How long does Adheseal PU-15 take to cure?
A: Adheseal PU-15 has a skin time of approximately 10 minutes and cures at a rate of 2mm per 24 hours at 25°C and 50% humidity. Cure times can vary based on temperature and humidity.
Use Adheseal PU-15 Low Modulus Elastomeric Polyurethane Joint Sealant for:
- Sealing expansion joints in concrete and precast panels.
- Perimeter sealing of windows and doors.
- Sealing metal cladding and fabrication joints.
- Adhering lightweight components in construction.
- Sealing joints in marine and automotive applications.
Why Use Adheseal PU-15 Low Modulus Elastomeric Polyurethane Joint Sealant for:
- High movement capability for dynamic structures.
- Low modulus for reduced stress on joints.
- Excellent resistance to mould, mildew, and chemicals.
- Versatile application on various substrates.
- Long-term durability and weather resistance.
How to apply Adheseal PU-15 Polyurethane Sealant:
- Prepare the surfaces: Ensure surfaces are clean, dry, and free from contaminants.
- Prime if necessary: Use appropriate primer for porous or non-porous substrates.
- Install backing rod: Use an open-cell foam backing rod for joints deeper than 10mm.
- Apply the sealant: Fill the joint completely, avoiding air entrapment.
- Tool the sealant: Smooth the surface with a moistened spatula before skin formation.
- Clean up: Remove excess sealant and masking tape while wet.
Adheseal PU-15 limitations:
- Not suitable for internal swimming pool applications or prolonged exposure to high chlorine levels (max 5ppm).
- Not for use in totally confined spaces as it requires atmospheric moisture to cure.
- Avoid use on aquariums, mirrors (use Hi-Power/MS609), and structural glazing (use N-80 or N-60 silicone).
- Not recommended for composite panels (use Hi-Flex Construction), natural rubber, EPDM rubber, or materials that leach oils, plasticisers, or solvents.
- May discolour copper and brass.
- Not for use on bituminous surfaces.
- Avoid application when moisture-vapor-transmission is emanating from the substrate or if air-entrapment can occur, as this may cause bubbling.
Safety precautions when using Adheseal PU-15:
- Personal Protective Equipment: Wear gloves, safety glasses, and a respirator if ventilation is inadequate.
- Ventilation: Ensure adequate ventilation during application to avoid inhalation of vapors.
- Handling: Wash hands thoroughly after handling and before eating or smoking. Clean spills immediately with Xylene.
- Disposal: Dispose of waste materials according to local regulations.
Adheseal PU-15 Low Modulus Elastomeric Polyurethane Joint Sealant can be used on the following substrates:
- Masonry and Brick: Provides a flexible, weather-resistant seal for construction joints.
- Metal (except lead & copper): 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 durable seal.
- Stone: Suitable for sealing stone joints, but stain testing is recommended.
- Painted Surfaces: Compatible with painted surfaces, enhancing weatherproofing.
- Aluminium and Powder Coat: Provides excellent adhesion and long-term durability.
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