Fortis AD5205-S is a structural glue-lamination adhesive for beams and engineered timber components requiring more assembly time. Its 20-minute working time provides the processing flexibility needed for larger timber sections while maintaining efficient production and reliable structural bonding.
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Fortis AD5205-S is a single-component, moisture-curing structural polyurethane timber adhesive developed for glue lamination and structural wood bonding.
With a working time of less than 20 minutes, AD5205-S provides the assembly time required for larger timber components and laminated sections while maintaining efficient production and cure performance.
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.
AD5205-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, 20-minute working time and relatively low application rate makes AD5205-S particularly suited to professional timber processors manufacturing glue-laminated beams and other engineered timber components.
Single-Component Moisture-Curing Polyurethane Adhesive
Suitable for high density timbers / Most hardwoods • 20-minute working time for structural timber lamination
• Structurally certified timber adhesive
• Suitable for glue-laminated beams and engineered timber
• Suitable for high-density timbers and most hardwoods
• Suitable for Australian hardwoods and softwoods
• Excellent adhesion at low application rates
• Water-resistant cured bond
• Excellent heat resistance
• Slight expansion during cure
• Single component – no mixing required
• Suitable for machine application
• Designed for heavily loaded timber construction joints Waterproof adhesive according to NEN-EN 204 D4 EN302 /AS/NZS 4364:2010 Specially developed for heavily loaded construction joints Expands as it dries Superior adhesion at low dosage Excellent heat resistance
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 AD5205-S is designed for structural timber lamination and engineered wood bonding. Accurate machining and close wood-to-wood contact are essential for achieving optimum structural bond performance.
Apply AD5205-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. AD5205-S provides a working time of less than 20 minutes under specified conditions, allowing additional assembly time for larger 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 AD5205-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
• 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, 1,100 kg
What is Fortis AD5205-S used for?
Fortis AD5205-S is a structural polyurethane timber adhesive developed for glue lamination and structural wood bonding.
Is AD5205-S a structural adhesive?
Yes. AD5205-S meets EN 302 / AS/NZS 4364:2010 requirements and holds GLTAA Certificate #007.
Is AD5205-S suitable for glue-laminated beams?
Yes. Its 20-minute working time makes AD5205-S particularly suited to laminated timber beams and engineered timber components.
What timber can AD5205-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 AD5205-S?
The current specification lists a working time of less than 20 minutes. Processing time can vary with temperature, humidity and timber conditions.
Does AD5205-S require mixing?
No. It is a single-component, moisture-curing polyurethane adhesive.
Why is water misted onto the timber?
Where recommended, a fine water mist provides additional moisture to assist the polyurethane curing reaction.
Does AD5205-S expand during curing?
Yes. The adhesive produces slight expansion as it cures.
What bonding pressure is required?
The 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 Fortis AD5205-S TDS for application rate, working time, clamping and processing requirements.
Fortis AD5205-S Technical Data Sheet
Fortis AD5205-S Safety Data Sheet AUS GHS
Fortis AD5205-S Safety Data Sheet NZ
