11
Trade quote
Custom pricing available
Tell us what you need and we'll come back with a quote.
Custom trade quote
Share your quantity and project details for a tailored quote.
Use Biyseal Acrylic Impregnated Foam for: Cost-effective joint sealing against air, dust, moisture and heavy rain in cladding, precast, glazing, and expansion joints
Biyseal Acrylic Impregnated Foam is a high-density polyurethane foam strip impregnated with a specialised acrylic solution, engineered to deliver durable, flexible sealing across a wide range of construction and industrial applications. Whether you're working with precast concrete, polycarbonate sheeting, or timber frames, its unique compression-based sealing system adapts perfectly to joint movement and environmental stresses. From dusty mine roads to torrential coastal rain, this product keeps your installations protected and professional.
Product Details: As a flexible impregnated foam joint seal, this product is built for dynamic environments—making it indispensable across commercial, civil, and residential applications where flexibility, durability, and fast installation matter.
Compression Performance: Designed to perform at varying levels of joint movement and environmental stress: 25% compression is effective against dust and vibration, 50% holds back general moisture, and at 75% it forms a weather-tight seal—even under heavy rain. Ideal for window reveals, back channels, and caravan construction where waterproofing and thermal movement coexist.
Elastic Recovery: Capable of compressing to 10% of its width and rebounding over 90% after repeated cycles, Biyseal Acrylic offers outstanding resilience for expansion joints and long-term installations—minimising maintenance and rework over time.
Application Temperature Range: Performs reliably from –10°C to +70°C, giving you confidence in hot, dry summers in WA or cool, damp mornings in southern Tasmania. No seasonal performance drop-off.
Additional Product Details:
Available Sizes & Lengths:
Offered in a range of popular trade dimensions (20mm to 50mm width) with strip lengths between 2 to 3.6 metres. Custom Orb and bespoke dimensions available on request—ideal for unique cavity designs or retrofit repairs.
Installation System & Compatibility:
Installs by simple hand or roller compression. Compatible with common sealants and water-based paints, allowing overcoating or integration into hybrid sealing systems without performance compromise.
Key Features of Biyseal Acrylic Impregnated Foam & What They Mean For You
- Variable Compression Performance: Choose your sealing power—air, dust, moisture, or rain—just by adjusting the level of compression. This lets you meet varying performance needs with a single product, reducing inventory complexity.
- Over 90% Elastic Recovery: Withstands repeated joint movement without degradation, making it ideal for use in precast and modular structures subject to vibration, traffic, or seasonal thermal shifts.
- Temperature Resistant (–10°C to +70°C): Performs across harsh Australian environments without cracking, hardening, or losing flexibility—ensuring seal integrity year-round.
- Paint & Mastic Compatible: Works seamlessly with water-based paints and joint mastics, making it easy to integrate into existing trade systems without performance risk.
Why Choose Biyseal Acrylic Impregnated Foam:
-
Problem: Traditional foams lose rebound or seal capacity after movement?
Solution with Biyseal: Maintains over 90% recovery, so joints stay sealed long-term, even in areas with thermal cycling or vibration like rail or HVAC installations. -
Problem: Need a weatherproof seal without messy wet products?
Solution with Biyseal: Clean, dry, no-curing install method using hand pressure or roller. Fast sealing with no odour, dripping, or tooling. -
Problem: Confusion over joint seal size matching?
Solution with Biyseal: Multiple foam widths available to suit different joint sizes. Reliable expansion ensures joint is filled correctly even if surface dimensions vary slightly.
When to Choose Biyseal Acrylic Impregnated Foam Over Other Options:
- Choose Biyseal over liquid-applied sealants when you want a fast, clean install with no cure time, especially on vertical or overhead surfaces.
- Choose Biyseal over closed-cell foams when you require flexibility, elasticity, or a long-lasting seal in movement-prone joints or where rain penetration is a concern.
- Biyseal is particularly effective for: Expansion joints in precast, polycarbonate roof cladding, caravan and RV assembly, and industrial HVAC enclosures.
- Consider other Adheseal solutions when: Underwater immersion is required, or where chemical exposure is significant—refer to Adheseal Butyl Tape or WetGrab for those scenarios.
Trade-Specific Applications & Pro Tips for Biyseal Acrylic Impregnated Foam:
For Builders and Cladding Installers:
-
Application Focus: Weather sealing roof sheeting and back channel polycarbonate
- Micro-Guide: Cut to length, compress with roller into channel before fastener installation.
- Material Compatibility Notes: Excellent adhesion to steel, aluminium, timber, and poly sheeting.
- Performance Benefits: Seals out wind-driven rain and dust without displacing under fastener torque.
- Pro Tip: Use 75% compression to achieve full waterproofing seal in roof valleys.
- Common Pitfall to Avoid: Overcutting—foam should be slightly longer than the joint to maintain compression.
For Precast and Civil Trades:
-
Application Focus: Sealing expansion joints in concrete panels
- Micro-Guide: Install during panel placement or before caulking stage. Use wet knife for seamless strip joins.
- Material Compatibility Notes: Compatible with concrete, brick, and render.
- Performance Benefits: Accommodates panel movement and resists water ingress, reducing risk of spalling or corrosion.
- Pro Tip: Slight recess of foam allows overlay caulking if needed without compromising primary seal.
- Common Pitfall to Avoid: Installing when joint is wet or dirty—may cause expansion delay or reduced adhesion.
Frequently asked questions
Can Biyseal Acrylic seal joints exposed to heavy rain?
Yes, Biyseal Acrylic seals against heavy rain when compressed to 75% of its original width. This makes it suitable for exposed cladding gaps or polycarbonate roofing installations where water ingress is a concern.
Is this foam suitable for dynamic joints like precast panel gaps?
Yes, Biyseal Acrylic is engineered for dynamic movement. It offers over 90% elastic recovery, making it suitable for precast concrete joints and modular building interfaces that experience thermal movement.
Can I paint over Biyseal Acrylic foam?
Yes, Biyseal Acrylic is compatible with water-based paints. Ensure the foam has fully expanded and is dry before painting to achieve proper adhesion and finish.
How do I join two strips of Biyseal Acrylic?
To create a continuous seal, splice the ends of the strips on an angle using a wet knife. Then, butt them together firmly to ensure no gaps remain in the joint line.
Applications and benefits
| Application | Key benefit | Primary trades |
|---|---|---|
| Expansion joints in precast concrete | Maintains flexibility and weather resistance under thermal movement with over 90% elastic recovery. | Concretors, builders |
| Back channel for polycarbonate roofing | Fills U-channels to block rain, insects, and dust without wet sealants, tooling, or cure time. | Roofers, glaziers |
| Window and door perimeter sealing | Prevents drafts and water leaks, improving thermal efficiency without relying on perfect gunning or tooling. | Glaziers, carpenters, builders |
| Vehicle, caravan, or trailer assembly | Provides a vibration-resistant and waterproof seal that tolerates on-road movement and temperature changes from -10°C to +70°C. | Fabricators, auto body technicians |
| Electrical and HVAC cabinet sealing | Forms a reliable, flexible gasket seal against weather and dirt ingress without liquid sealants or curing. | Electricians, HVAC technicians |
Step-by-Step Application Guide for Biyseal Acrylic Impregnated Foam:
- Preparation is Paramount: Ensure joint or surface is clean, dry, and free from oil, grease, or dust. For porous surfaces like concrete, brushing or vacuuming may be required. Avoid installing when surfaces are damp.
- Nozzle & Gun Setup: Not required. Biyseal comes as pre-cut strips. Select the correct width for your joint and trim length with a sharp knife or scissors.
- Application Technique: Compress foam manually or with a roller into the joint. Ensure continuous pressure and avoid gaps. Biyseal will self-expand slightly to fill voids.
- Tooling for a Professional Finish: Use a damp knife to compress ends or shape corners. For neat termination, cut at a 45° angle and butt splice with slight overlap if needed.
- Clean-Up: No solvents required. Simply wipe tools clean or discard offcuts. Biyseal has no odour or tack.
- Curing Process: No curing time required. The foam provides immediate sealing performance once installed at proper compression level.
Product limitations
- Not for: Submerged or underwater use. For continuous immersion, use an appropriate product such as Adheseal WetGrab.
- Poor adhesion to: Oily or greasy substrates. Always clean surfaces thoroughly before application to ensure the foam expands and grips effectively.
Safety and handling
Personal protective equipment
Gloves are recommended to prevent minor skin irritation. No harmful vapours or solvents are present.
Ventilation
No special ventilation is required under normal use conditions.
Storage and disposal
Store in a cool, dry place away from direct sunlight. Dispose of waste in accordance with local regulations.
Substrate guide
Proper surface preparation is crucial for the effective compression and sealing performance of Biyseal Acrylic Impregnated Foam.
Concrete (precast or rendered)
Surface prep: Surfaces must be dry and free from dust, laitance, or loose material. Remove any form-release agents or curing compounds.
Primer: Not required for effective compression sealing.
Timber (framing or window reveals)
Surface prep: Ensure timber is clean, dry, and free of sawdust or splinters. Compatible with most treated and untreated softwoods and hardwoods.
Primer: Not required for effective compression sealing.
Polycarbonate sheeting (back channels)
Surface prep: Clean the U-channel profiles to ensure they are free of dust, debris, or moisture, allowing the foam to fit snugly.
Primer: Not required for effective compression sealing.
Metal roofing and cladding
Surface prep: Surfaces must be clean and dry. Remove any oxidation, grease, or loose coatings. Ensure profiles are clear for full foam compression.
Primer: Not required for effective compression sealing.
Aluminium frames or flashings
Surface prep: Clean surfaces to remove any oxidation, grease, or dirt. A clean substrate allows for consistent compression and seal integrity.
Primer: Not required for effective compression sealing.
Biyseal Acrylic Impregnated Foam Physical Properties
| Property | Value |
|---|---|
| Material | Polyurethane Foam, Acrylic Solution Impregnation |
| Compression Performance | 25% blocks air, dust, vibration; 50% blocks moisture; 75% blocks rain and water |
| Elastic Recovery | Recovers to over 90% of original width after repeated compression |
| Temperature Range | -10°C to +70°C |
| Compatibility | Water-based paints and mastics |
| Available Sizes | 25mm x 25mm, 50mm x 25mm |
| Length Per Strip | 2 m |
- Choosing a selection results in a full page refresh.