Two Component Polyurethane Adhesive Sealant for Corner Angle Frame Assembly for Windows and Doors
∎Product Description
● PU2838 is a two-part adhesive based on Polyurethane technology. Fast-hardening, solvent-free, non-shrink polyurethane strong adhesive which, once hardened, transforms into a very strong-grip adhesive with excellent resistance to water, temperatures, weathering and ageing conditions. Excellent adhesion on metals. Due to the optimum filling properties, it is suitable for use in beading/cord applications.
∎Key Features
● Excellent adhesion on numerous substrates
● Easy-to-use
● Solvent free – Odourless
● Weathering resistance according to DIN 204 D4
● Resistant to ageing
● Resistant to chemicals
● Filling capacity: very good
∎Typical Applications
● Bonding of corner connections in metal door, windows and facades as well as conservatories.
● Powerful bonding in metal construction; aluminium, stainless steel, galvanised steel.
● Powerful bonding of wood and derived wood products; chipboard, plywood, staircase renovation.
●Bonding of stone, natural stone, brick and ceramics
●Bonding of synthetic materials; PVC, fibre-reinforced plastics etc.
●Bonding of insulating materials including expanded polystyrene and polyurethane sheet
.
∎Packing Specification
● PE Cartridges 2 *310ml,
● 10 pairs per box.
● Color : Part A: Light Brown
Part B: White
∎Transport &Storage
● Transport: Keep the sealed product away from moisture, the sun, high temperature and avoid collisions.
● Storage: Keep the sealed product into cool, dry place.
● Storage temperature: 5~25℃. Humidity: ≤50%RH.
●Cartridge : 12 month.
Notice:If the temperature is higher than 40 ℃ or the humidity is more than 80%RH, the shelf life may be shorter.
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Two Component Polyurethane Adhesive Sealant for Corner Angle Frame Assembly for
PROPERTY PU-2838
Appearance
A: Light Brown; B: White
Chemical Basis
Polyurethane
Processing time at 23°C and 50% r.h.
10’
Pot life at 23°C and 50% r.h.
≈ 60’
Mixing ratio (Volume A:B)
1:1
Viscosity
thixotropic paste
Density Comp. A at 23°C
1.40 g/cc
Density Comp. B at 23°C
1.31g/cc
Functional stability of the bonded corner at 23°C
30’
Shear strength by tensile loading (EN 204 – D1)
≥ 10.5 N/mm2
Initial lap shear strength after 3 days
≈ 3 N/mm2
Chemical resistance
Excellent
Humidity and water resistance
Excellent
Solid contents
100% (solvent free)
Application Temperature
+5°C to +35°C
Temperature resistance
-40°C / +80°C after curing
●All surfaces to be bonded must be perfectly clean, dry and free from dust, grease, oils and debris.
●Cleaning of non-porous substrates using a lint free cotton cloth and organic solvent. Cleaning of porous substrates using a steel wire brush to remove loose particles.
●Apply PU-2838 on one side with the special caulking mixing gun and assemble parts immediately or within the processing time.
In hot weather conditions the pot life time is reduced and consequently the processing time
must be quicker. Please carry out some preliminary test before starting your bonding session.
The high viscosity holds elements to be bonded in position, the use of clamps however sometimes is
recommended.
Application
●Weathering resistant bonding of corner joints on metal windows, doors, façade as well as conservatories.
●Suitable for structural strong-grip bonding of wooden elements on both porous and non porous
substrates. Particularly useful and practical for high mechanical resistance assembly and outdoor
applications.
General Information
●The information contained in this technical data sheet is to the best of our knowledge correct.
However, by no means can it be considered a guarantee, as usage, working area and application of the product in accordance with the instructions given and their success in application is beyond
our control and is dependent on a number of factors. We decline any responsibility for the improper use of the product as the application recommendations contained herein are to be
considered as a general guideline. If at all in doubt, preliminary tests should be carried out.
We reserve the right to modify and up-date said data sheets without prior notice. Clients are kindly
requested to verify that they are in possession of the current edition.
∎Transport &Storage
● Transport: Keep the sealed product away from moisture, the sun, high temperature and avoid collisions.
● Storage: Keep the sealed product into cool, dry place.
● Storage temperature: 5~25℃. Humidity: ≤50%RH.
●Cartridge : 12 month.
Notice:If the temperature is higher than 40 ℃ or the humidity is more than 80%RH, the shelf life may be shorter.