Adhesives, glues and assembly foams for wooden windows

Adhesives, glues and foams play a key role in the manufacturing of wood-frame windows. Due to their permanent resistance to weather conditions such as heat, cold and moisture, discerning window makers use high-quality PVAc glues, EPI systems or chemically reactive PUR glues that comply with stress group D4 according to DIN EN 204. There is also growing demand for products with resistance to dry heat, as tested according to DIN EN 14257 (Watt 91). When installing wood-frame windows, 1C PUR foams, which provide for good thermal and sound insulation, are usually used to connect the frames to the building structure. 2C PUR foams are generally used for window sills.

Manufacturing

Wood-frame windows usually consist of an outer frame and a sash frame made of squared timber, known as scantlings. The scantlings are made of individual slats that are glued together in several layers.

Manufacturing scantlings

As a rule, three separate slats of solid wood are glued together to make a scantling. The adhesive or glue is applied either manually with a toothed spatula or with automatic roller or nozzle systems.

Once the adhesive has completely hardened, the scantlings are formed and profiled into a frame profile or sash profile.

Two-component dispersions such as KLEIBERIT 303.0, 304.1 or 304.4 – each with a hardener – can be used, depending on individual preferences. If a single-component adhesive is prefered, KLEIBERIT’s 501.10 PUR glue is the product of choice. All the named products have test certificates from independent institutes, and have been successfully used for many decades.

Manufacturing window frames

When making window frames, the prepared profiles are glued together using slot or tenon connections or wooden dowels. This can be done either manually or with automatic nozzle systems. The choice of adhesive plays a decisive role to ensure weather-resistant and long-lasting connections.

We recommend using KLEIBERIT 501.0, a single-component, ready-for-use PUR adhesive, for this purpose. Being water-free, it guarantees dimensional stability in the wood, and also offers extremely high and very long-term weather resistance. Further alternatives are the classic white glues KLEIBERIT 303.0 or KLEIBERIT 304.1, with the addition of 5% hardener to each, or the EPI adhesive KLEIBERIT 304.4 with a hardener.

Take a look at our product table and let our experts advise you! Our window glues can also be ordered from our web shop.

To the product table.

Assembly

Installing wood-frame windows

We recommend using KLEIBERIT’s single-component PUR assembly foams for fast window installation and effective, long-lasting thermal and sound insulation. They have good joint-filling properties and enormous adhesive strength.

The best product for the purpose is KLEIBERIT’s 1C PUR foam 540.5 (which hardens through humidity) and the matching corner angle adapter for foaming directly from the can without the need for a foam gun. A good alternative is KLEIBERIT 1C PUR foam 544.4, used with the KLEIBERIT 891.1 foam gun for easy use and precise dosing. Both assembly foams are very low-emission and meet the EMICODE EC 1 requirements (as defined by GEV, the association for emission-controlled installation materials).

Installing window sills

2C PUR foams are generally used for installing window sills. They harden independent of moisture in the air, and immediately after the two components have been automatically mixed in the container.

We recommend using KLEIBERIT 536.0 for this purpose. It is completely propellant-free, and available in a double cylinder cartridge. With its stable joint-filling properties and enormous adhesive strength, the foam permanently withstands weight loads, ensuring a long-term and secure hold.

Take a look at our product table and let our experts advise you! Our window glues can also be ordered from our web shop.

To the product table.

Products

New products

KLEIBERIT 605.1.20 1C STP adhesive
  • can be applied with a roller or a spatula
  • no foaming
Base
STP
Certificates
  • DIN EN 204 D4
  • EC1 plus according to GEV EMICODE classification
Applications
  • laminating window scantlings
  • gluing frame corners made of all common types of wood for windows

1C PUR adhesives

KLEIBERIT 501.0.00 1C PUR adhesive
  • medium open time
Base
PUR
Certificates
  • DIN EN 204 D4
  • IMO FTP Code Part 5 & Part 2
  • DIN EN 14257 (Watt 91)
Applications
  • laminating window scantlings
  • gluing frame corners made of all common types of wood for windows
KLEIBERIT 501.4.00 1C PUR adhesive
  • very short open time
Base
PUR
Certificates
  • DIN EN 204 D4
  • DIN EN 14257 (Watt 91)
Applications
  • fast assembly and repair gluing with high temperature and moisture resistance
KLEIBERIT 501.6.00 1C PUR adhesive
  • long open time
Base
PUR
Certificates
  • DIN EN 204 D4
  • DIN EN 14257 (Watt 91)
Applications
  • laminating window scantlings
  • gluing frame corners made of all common types of wood for windows
KLEIBERIT 501.8.00 1C PUR adhesive
  • short open time
Base
PUR
Certificates
  • DIN EN 204 D4
  • DIN EN 14257 (Watt 91)
Applications
  • laminating window scantlings
  • gluing frame corners made of all common types of wood for windows

PVAc dispersions

KLEIBERIT 303.0.00 White glue
  • dispersion with medium open time (6-10 minutes)
Base
PVAc
Certificates
  • DIN EN 204 D3
  • as a two component glue with 5% KLEIBERIT 303.5.00 DIN EN 204 D4
  • DIN EN 14257 (Watt 91)
  • IMO FTP Code Part 5 & Part 2
Applications
  • laminating window scantlings and gluing frame corners made of all common types of wood for windows
KLEIBERIT 304.1.00+304.3.00 2C PVAc glues
  • high-performance dispersion for gluing solid wood for outside use
Base
PVAc
Certificates
  • DIN EN 14257 (Watt 91)
  • DIN EN 204 D4
Applications
  • laminating window scantlings made of all common types of wood for windows, doors, etc.
  • gluing frame corners made of all common types of wood for windows, doors, etc.
KLEIBERIT 314.3.00 PVAc glue
  • D4 dispersion with integrated hardener system
Base
PVAc
Certificates
Applications
  • windows, doors, manufacturing partitions and elements, stairs
  • watertight bonds for indoors and outdoors

EPI systems

KLEIBERIT 304.4.00 + 808.0.00 EPI systems
  • dispersion adhesive with very high moisture and temperature resistance
Base
EPI
Certificates
Applications
  • laminating window scantlings made of all common types of wood for windows
  • gluing frame corners made of all common types of wood for windows

Assembly foams

KLEIBERIT 536.0.00 StairMaster - 2C PUR foam
  • 2C assembly foam
  • double cylinder cartridge, propellant free
Base
PUR
Certificates
  • building material class B2 - DIN 4102, part 1
Applications
  • installing window sills
KLEIBERIT 540.5.00 1C PUR foam
  • fast hardening, high heat insulation, high sound insulation
  • easy processing
Base
PUR
Certificates
  • building material class B2 / DIN 4102, part 1
  • DIN 4109
  • DIN 52612 thermal conductivity 0.039W/m²K
  • joint sound absorption: RST,w max. 58 dB
Applications
  • installing windows
  • roller shutter boxes
KLEIBERIT 544.3.00 1C PUR foam
  • precise dosing, economical use, high heat insulation, high sound insulation
Base
PUR
Certificates
  • building material class B2/B3 - DIN 4102, part 1
  • DIN 4109
  • DIN 52612 thermal conductivity 0.039W/m²K
  • joint sound absorption: RST,w max. 61dB
Applications
  • installing windows
  • roller shutter boxes

Accessories

KLEIBERIT 890.0.00 double cylinder cartridge gun
  • in the practical Systainer® case
Base
Certificates
Applications
  • using 2C PUR foams from double cylinder cartridges
KLEIBERIT 890.1 Double cylinder cartridge gun
  • universal
  • ergnomically shaped handle
Base
Certificates
Applications
  • using 2C PUR foams from double cylinder cartridges
KLEIBERIT 891.1.00 PUR foam gun
  • exact dosing of foam amounts
  • non-stick coating of needle valve and pickup head
Base
Certificates
Applications
  • matching PUR foam cartridges for precise dosing

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