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Use Biyseal Polyurethane Impregnated Foam for: Weatherproofing, expansion joint sealing, dust and vermin proofing, and sealing various roof and wall decking.
Biyseal Polyurethane Impregnated Foam is a versatile, compressible foam designed for effective sealing in construction and industrial applications. Available in bitumen or acrylic impregnated versions, it provides excellent weather resistance and long-term durability. This foam adapts to dynamic joint movements, making it ideal for expansion joints, metal cladding, and timber homes. Its high recovery rate and varying compression resistance ensure reliable performance in diverse conditions, from dust prevention to standing water resistance.
Key Features of Biyseal Polyurethane Impregnated Foam
- High Compressibility and Recovery: Maintains 98% recovery in the first cycle, ensuring long-lasting seal performance in dynamic joints.
- Weather Resistance: Available in bitumen or acrylic impregnated options for enhanced protection against various weather conditions.
- Versatile Application: Suitable for dust and vermin proofing, expansion joints, and sealing roof and wall decking profiles.
- Long Working Life: Accelerated aging tests indicate a working life of up to 20 years, depending on the application.
- Customizable Sizes and Profiles: Available in various sizes and profiles, including options for Corrugated and Trimdek roofing.
Technical Overview
Biyseal is engineered for reliable sealing through its exceptional compressibility and recovery. Its ability to withstand varying degrees of compression allows it to adapt to different environmental challenges, from dust and draughts to standing water. The choice of bitumen or acrylic impregnation enhances its suitability for diverse applications. Its high tensile strength and tear resistance ensure durability, while its low shrinkage maintains consistent performance over time.
Chemical Properties: Polyurethane foam impregnated with bitumen or acrylic, providing flexibility and weather resistance.
Application Temperature Range: While specific temperature ranges are not listed, polyurethane foams generally perform well in standard construction temperatures. Ensure the surfaces are clean and dry for optimal application.
Application Information
- Required Tools: Measuring tape, utility knife or scissors for cutting to size.
- Trade-Specific Tips: Ensure the foam width matches the application requirements (5x joint opening for weather resistance, 3-4x for expansion joints, 2x for joint proofing).
- Common Issues and Solutions: Ensure proper compression for desired sealing level; incorrect compression can lead to insufficient sealing.
Storage and Shelf Life
- Storage Requirements: Store in a cool, dry place away from direct sunlight and extreme temperatures.
- Shelf Life Information: While specific shelf life is not provided, polyurethane foams generally maintain their properties for extended periods when stored correctly.
- Temperature Considerations: Avoid storing in excessively hot or cold environments to prevent degradation.
Certifications
- AS2282-79: Complies with Australian standards for flexible cellular materials.
Frequently Asked Questions About Biyseal Polyurethane Impregnated Foam
Q: How do I choose the right size of Biyseal foam for my application?
A: Select the foam width based on the joint opening: 5 times for weather resistance, 3-4 times for expansion joints, and 2 times for joint proofing. This ensures proper compression and effective sealing.
Q: What are the benefits of using bitumen-impregnated versus acrylic-impregnated foam?
A: Bitumen-impregnated foam offers excellent weather resistance and is ideal for general construction applications. Acrylic-impregnated foam is better suited for applications requiring enhanced UV resistance.
Q: Can Biyseal foam be used in standing water applications?
A: Yes, when compressed by 75%, Biyseal can resist standing water. Ensure proper compression to achieve the desired level of water resistance.
Q: How long can Biyseal foam last in outdoor applications?
A: Accelerated aging tests indicate a working life of up to 20 years, depending on the application and environmental conditions. Proper installation and maintenance are crucial for longevity.
Q: Does Biyseal foam require any specific tools for installation?
A: Basic tools like a measuring tape and a utility knife or scissors are sufficient for cutting the foam to the required size. No specialized tools are needed for installation.
Use Biyseal Polyurethane Impregnated Foam for:
- Weatherproofing metal wall and roof cladding.
- Sealing vertical expansion joints in precast concrete, brick, and block work.
- Jointing between walls and windows.
- Sealing various roof and wall decking profiles.
- Joint sealing of logs in timber homes.
Why Use Biyseal Polyurethane Impregnated Foam:
- Provides a durable and long-lasting weather seal, reducing maintenance and repair costs.
- Adapts to dynamic joint movements, preventing leaks and damage in expansion joints.
- Offers versatile application options with bitumen and acrylic impregnated versions.
- Easy to install with basic tools, saving time and labor on site.
- Maintains performance over time with excellent recovery and compression resistance.
How to apply Biyseal Polyurethane Impregnated Foam:
- Measure the joint opening to determine the required foam width based on the application (weather resistance, expansion joint, or joint proofing).
- Cut the Biyseal foam to the required length using a utility knife or scissors.
- Insert the foam into the joint, ensuring it is compressed to the appropriate level for the desired sealing effect.
- For profiled applications like roofing, use the pre-profiled Biyseal foam to match the roof decking.
Biyseal Polyurethane Impregnated Foam limitations:
- Performance depends on correct compression; insufficient compression may result in inadequate sealing.
- Not suitable for applications requiring strong adhesive bonding; relies primarily on compression for sealing.
- Specific chemical resistance data is not provided, so avoid exposure to harsh chemicals without prior testing.
Safety precautions when using Biyseal Polyurethane Impregnated Foam:
- Personal Protective Equipment: Gloves are recommended to prevent skin irritation.
- Ventilation: General ventilation is adequate; no specific requirements are listed.
- Handling: Handle with care to avoid tearing or damaging the foam.
Biyseal Polyurethane Impregnated Foam can be used on the following substrates:
- Metal Cladding: Provides effective weatherproofing and dust proofing.
- Concrete and Masonry: Ideal for expansion joints and sealing gaps.
- Timber: Suitable for sealing joints in timber homes and structures.
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