Fortis AD5505-S is a structural glue-lamination adhesive for large beams and complex engineered timber assemblies requiring extended layup time. Its 50-minute working time provides maximum assembly flexibility for larger components, manual layup and slower structural timber production processes.
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Fortis AD5505-S is a single-component, moisture-curing structural polyurethane timber adhesive developed for glue lamination applications requiring extended assembly and layup time.
With a working time of less than 50 minutes, AD5505-S provides additional time for assembling larger or more complex laminated timber components before pressing. This makes it particularly suited to slower production processes, manual layup and applications where extended working time is required.
The adhesive provides excellent adhesion to a wide range of timber species, including dense Australian hardwoods, imported hardwoods, Radiata pine and other softwoods. Its moisture-curing polyurethane chemistry produces a strong, water-resistant bond with slight expansion during cure.
AD5505-S is designed for demanding structural timber applications and meets EN 302 / AS/NZS 4364:2010 requirements. It is also certified by the Glued Laminated Timber Association of Australia under GLTAA Certificate #007.
Its combination of structural bond performance and extended working time makes AD5505-S particularly suited to professional timber processors manufacturing glue-laminated beams and other large engineered timber components.
Single-Component Moisture-Curing Polyurethane Adhesive
50-minute working time for extended structural timber laminationSuitable for larger and more complex glue-lamination assembliesStructurally certified timber adhesiveSuitable for machine and manual applicationSuitable for high-density timbers and most hardwoodsSuitable for Australian hardwoods and softwoodsExcellent adhesion at low application ratesWater-resistant cured bondExcellent heat resistanceSlight expansion during cureSingle component – no mixing requiredDesigned for heavily loaded timber construction joints
EN 302 / AS/NZS 4364:2010 – Pass
GLTAA – Glued Laminated Timber Association of Australia Certificate #007
Ensure all bonding surfaces are clean, dry and free from dust, oil, grease and other contaminants that may interfere with adhesion.
Fortis AD5505-S is designed for structural timber lamination and engineered wood bonding where extended assembly and layup time is required. Accurate machining and close wood-to-wood contact are essential for achieving optimum structural bond performance.
Apply AD5505-S evenly at the application rate specified in the current Technical Data Sheet. A fine water mist applied to the timber may assist the moisture-curing reaction where recommended for the timber species and processing conditions.
Assemble and press the timber components within the specified working time. AD5505-S provides a working time of less than 50 minutes under specified conditions, allowing additional assembly time for larger or more complex laminated timber components.
Suitable and consistent bonding pressure must be maintained during cure. The current product information recommends a minimum pressure of approximately 1400 kPa for laminating applications.
Processing and cure times can vary depending on timber species, moisture content, adhesive temperature, ambient temperature and humidity.
During cold weather, maintain the adhesive at an appropriate processing temperature. An adhesive temperature of approximately 20–30°C is recommended for consistent application and cure performance.
Refer to the current Fortis AD5505-S Technical Data Sheet for application rate, working time, clamping time and complete processing requirements before production use.
Suitable substrates and applications include:
• Australian hardwoods
• High-density hardwoods
• Imported hardwoods
• Radiata pine
• Softwoods
• Solid timber
• Engineered timber products
• Glue-laminated timber
• Laminated structural beams
• Large laminated timber components
• Suitable structural timber components
Bonding surfaces must be clean, dry and free from dust, oil, grease and other contaminants that may interfere with adhesion.
Excellent wood-to-wood contact is essential for structural lamination. Timber components should be accurately machined to provide close and consistent contact across the bonded surfaces.
Timber moisture content, species, density, temperature and production conditions can influence adhesive cure and bond performance.
Where recommended, a fine water mist may be applied to assist the moisture-curing reaction.
For laminating applications, suitable and consistent bonding pressure must be maintained during cure. Refer to the current Technical Data Sheet for processing requirements.
Production trials should be carried out when introducing new timber species, laminated sections or manufacturing conditions.
225 kg
What is Fortis AD5505-S used for?
Fortis AD5505-S is a structural polyurethane timber adhesive for glue lamination requiring extended assembly and layup time.
How is AD5505-S different from AD5205-S?
AD5505-S provides a longer working time, making it suitable for larger or more complex laminated timber assemblies requiring additional layup time.
Is AD5505-S a structural adhesive?
Yes. AD5505-S meets EN 302 / AS/NZS 4364:2010 requirements and holds GLTAA Certificate #007.
Is AD5505-S suitable for glue-laminated beams?
Yes. Its extended working time makes it particularly suited to laminated structural beams and engineered timber components.
What timber can AD5505-S bond?
It is suitable for a wide range of timbers including Australian hardwoods, high-density hardwoods, Radiata pine and other softwoods.
What is the working time of AD5505-S?
The current specification lists a working time of less than 50 minutes. Processing time can vary with temperature, humidity and timber conditions.
Does AD5505-S require mixing?
No. It is a single-component, moisture-curing polyurethane adhesive.
Can AD5505-S be manually applied?
Yes. AD5505-S is suitable for machine and manual application.
What bonding pressure is required?
Current product information recommends a minimum bonding pressure of approximately 1400 kPa for laminating applications.
Where can I find processing instructions?
Refer to the current AD5505-S TDS for application rate, working time, clamping and processing requirements.
Fortis AD5505-S Technical Data Sheet
Fortis AD5505-S Safety Data Sheet AUS GHS
Fortis AD5505-S Safety Data Sheet NZ
