Flexseal PU440 - 300ml
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Primer PU
 

Flexseal
PU440 - 600ml

ONE COMPONENT POLYURETHANE SEALANT
 
Advantages:

  • Paintable

  • Good adhesion without primer

  • Flexible

  • Non sag

  • Aging resistant

  • Chemical resistant

Description:

One component, non sag, elastomeric polyurethane sealant with excellent adhesion strength to most building materials.



Usage

Flexseal PU440 cures by reacting with the air humidity to form a
tough and highly elastic low modulus sealant. Flexseal PU440 has a very wide service temperature range. Suitable for vertical and horizontal joints, for general sealing of construction joints.

Flexseal PU440 for concrete, wood, marble, aluminium, steel, ceramic, gypsum boards.

Materials Supplied

600 ml cartridges

Coverage


Joint size
 mm		Meters per
liter
6 x 6
27.75
9 x 6
18.50
12 x 9
9.25
18 x 10
5.55
25 x 10
4.00

Storage


Store in a cool, dry and shaded areas at temperatures between +5oC and +30oC.

Shelf Life

12 months

Limitations


Not recommended for unsound substrates.

Standard

  • EN ISO11600 F 25LM
  • EN 15651-1:2012, F-EXT-INT-CC

Technical properties @ 25°C, 50% RH

Density1.18 g/cm³
Tensile strength
> 2.5 MPa
Elongation
> 600 %
Curing rate2 - 3 mm / day
Touch free time
2 hr
Hardness Shore A40 ± 5
Movement accommodation
± 25%
Service temperature
-30 up to 100 °C
Application temperaturefrom 5 to 35°C
Adhesion in peel
> 32 N
 (VOC)
< 75 g / l
Thermal resistance
Passed 100 days @ 80 °C
Modulus @ 100%
Ca 58 psi (0.4 MPa)
Colourwhite, black, grey, brown

Application instructions

SUBSTRATE PREPARATION

All substrates should be clean, dry, free from dust, oil, grease and any contaminations that could effect the bonding. If the substrates need to be cleaned, use methyl ethyl ketone (MEK), acetone or grease remover. Always be sure that the substrates are dry before the application.

PRIMING
Flexseal PU440 generally has strong adhesion to common clean, dry and sound substrates without primers. However, Flexprime PS100 primer canbe used on porous substrates in order to achieve
optimum bond strength.

APPLICATION
The recommended application temperature range is 5°C to 35°C. For cold weather application, store the product in a heated area at 20°C for 24 hours prior to use. Install polyethylene joint backing rod to control the sealant depth.
Tooling and finishing should be carried out immediately after the application of the sealant. For optimum performance, the ratio of width to depth of the sealant should be 2:1. Minimum sealant depth should however be 5 mm.





Download file

Technical Data Sheet
Flexseal PU440
Declaration of Performance
Flexseal PU440
Safety Data Sheets
Flexseal PU440


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