weberseal PU

New Product
weberseal PU
weberseal PU 300ml
weberseal PU 600ml

A one part, moisture curing elastic joint sealant. Used as a general purpose building construction sealant for 
sealing joints

Packaging

Documentation and brochures

To know before applying

Specific gravity 1.16 ± 0.02 kg./litre
Skinning time : ~ 70 minutes (+23 ํC / 50% RH)
Curing rate : ~ 3 mm/24h (+23 ํC / 50% RH)
Sagging : None
Movement capability : ± 50%
Application temperature : +5 ํC to +40 ํC
Temperature resistance : -40 ํC to +80 ํC
Tear strength : ~ 10 N/mm2 (+23 ํC / 50% RH)
Shore a hardness : ≥ 40 after 28 days (+23 ํC / 50% RH)
E-Modulus : ~ 0.3 N/mm2 at 100% elongation
Elongation at break : > 600% (+23 ํC / 50% RH)
Elastic recovery : > 70% (+23 ํC / 50% RH)
Fungus and algae resistance : Pass
UV and weathering resistance : Pass
Paintable : Yes : water based
Base : Polyurethane
Curing system : Moisture cured
Secant tensile strength : 0.4 N/mm2 (+23 ํC/50% RH)
Chemical resistance : Seawater, cement, diluted alkalis, and water based detergents

Features and benefits

  • Excellent adhesion to most substrates
  • Weather resistance, excellent aging resistance
  • Movements capability of ±50%
  • High tear strength
  • One component, excellent workability
  • Can be painted over

Constraints

  • weberseal PU cannot be used as a glazing sealant
  • Do not use weberseal PU on bituminous substrates, natural rubber,
  • EPDM rubber or on building materials which might bleed oils, plasticizers or solvents which could attack the sealant
  • Colour change may occur in time because of UV exposure, but this has no effect on the mechanical properties of the cured product
  • The adhesion is low on PE, PP, PTFE
  • Not resistant to organic solvents, organic acids, high concentrated alkalis/acids

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