Soudal Butyrub - Polybutene Non Setting Mastic

Soudal Butyrub - Polybutene Non Setting Mastic

Soudal | Polybutene Sealant

Soudal Butyrub is a Polybutene Based Non Setting Mastic which forms an elastic tight skin that can be painted over after 24 hours.

Supplied in 310ml Cartridges, available in White and Grey.


Soudal Butyrub - Non Setting Mastic

Soudal Butyrub Non Setting Mastic is very easy to apply. It forms an elastic and tight skin and can be painted over after 24 hours.

Soudal Butryub Non Setting Mastic has very good adhesion on many building surfaces, is UV and weather resistant and has good resistance against chemicals.

Product Benefits:

  • Very easy to apply

  • Forms an elastic and tight skin

  • Paintable after 24 hours

  • Very good adhesion on many porous materials

  • Excellent resistance to many chemicals

  • UV-resistant

  • Weatherproof

Typical Applications:

  • Joints with limited movement (Max. 5%).

  • Sealant for joints in masonry, door and window frames, windowsills.

  • Installation of single glass in wooden, concrete and steel window frames like in greenhouses.

  • Sealing of joints in coachwork and container construction.

  • Sealing of all openings in roof constructions.

  • Repairing and renovation of roofs and gutters.


Surface Preparation:

Surfaces should be clean, dry, free of dust and grease.

We recommend a preliminary adhesion test on every surface.

Application Method:

  • Application Method: With a Caulking Gun.

  • Cleaning: Clean uncured product with a surface cleaner immediately after use.

  • Finishing: Spray with a Soapy Solution before skinning. Finish with Soudaglatt Smoothing Tool.

  • Repair: With the same material


Coverage of any sealant product varies depending on Joint Width and Joint Depth.

Please refer to our Guide on How To Measure The Number of Tubes Required For the Job.

Joint Dimensions:

  • Minimum Width for Joints: 5 mm

  • Maximum Width for Joints: 20 mm

  • Minimum Depth for Joints: 5 mm

  • Recommendation Sealing Jobs: Joint Width = Joint Depth. Use PE backer rods before applying the sealant in large joints to avoid 3-point adhesion.


  • Do not use in applications where continuous water immersion is possible.

  • Paintable with most paints.

  • The paint should be sufficiently elastic to be applied to a plastic sealant.

  • Given the great diversity in available paints it is recommended to do a compatibility test prior to application.

  • Not suitable for sealing of insulation glass units or safety glass.

  • Do not use on natural stones like marble, granite etc... may cause staining.

Data Sheets

Technical Data Sheet

Safety Data Sheet

More on this product... View Delivery Rates



£2.25 ex. VAT | £2.70 inc. VAT

  • Reviews

Related Items

  • £2.25 ex. VAT | £2.70 inc. VAT
  • Delivery Rates

    Delivery To... Under £75 ex. VAT £75 or over ex. VAT
    UK Mainland £4.50 FREE
    Scottish Islands £29.50 £25.00
    Northern Ireland POA POA
    Isle of Wight £17.00 £12.50
    Republic of Ireland POA POA
    Scilly Isles POA POA
    Isle of Man POA POA