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Finger Jointing Adhesive - Fortis AD5025-S

FORTIS AD5025-S is a single component, moisture curing structurally certified polyurethane timber adhesive with 2-minute open time for finger jointing. It is used for fast processing of finger joining timber.


FORTIS AD5025-S Structural Wood Adhesive is a single-component, water-resistant, wood adhesive for structural lamination. Extremely fast curing with a slightly foaming effect. FORTIS AD5025-S Structural Wood Adhesive is suitable for extremely fast machine finger joining for example decking, bracing, beams, lintels




Suitable for high-density timbers / Most hardwoods 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


EN302 /AS/NZS 4364:2010 - Pass GLTAA - Glued Laminated Timber Association of Australia: CERTIFICATE #007.




FORTIS AD5025-S is suitable for all kinds of finger joints most common though are comb style joints. FORTIS AD5025-S is suitable for glueing a wide range of woods. It is suitable for many Australian and Indonesian hardwoods with high densities to more typically softwoods. Both sides of the surface must be dry and free of dust and grease. Assembly time tolerances will be substrate-specific. However, a good rule of thumb for minimum assembly time tolerances with the recommended water misting is 2 minutes of total assembly time. In cold climates, it is recommended the Adhesive is kept warm 20-30C. (Fortis can assist for simple setup of heat rooms). FORTIS AD5025-S generally requires lower dosages than traditional resins used for engineered wood products.


Excellent wood-to-wood contact is necessary to achieve optimum bond strength. A good mechanical fit for finger-jointing is necessary and internal or bonding pressures for laminating must be at least 1400kPa for optimum performance. Extensive laboratory experiments have shown that to achieve optimum performance with the FORTIS AD5025-S a water mist can be applied to the wood.


EN302 /AS/NZS 4364:2010
GLTAA Certificate
Working Time
Clamp Time
45-60min@20°C (65% RH)
55-110 g/m²

Pack Sizes

225kg, 1100kg


Technical Datasheets

Fortis AD5025-S Technical Data Sheet

Safety Datasheets

Fortis AD5025-S Safety Data Sheet AUS GHS
Fortis AD5025-S Safety Data Sheet NZ