Soudaflex® 40FC - Polyurethane Sealant & Adhesive

Soudaflex® 40FC - Polyurethane Sealant & Adhesive

Soudal | Polyurethane Sealant

Soudaflex® 40FC is a High Modulus Polyurethane Based Sealant & Adhesive which is very easy to apply and stays elastic after curing.

Soudaflex® 40FC has very good adhesion on many materials and has excellent resistance to many chemicals.

Soudaflex® 40FC was developed especially for concrete applications and is paintable with some types of paint after curing.

  • Very easy to apply

  • Permanently elastic after curing

  • Excellent resistance to UV radiation

  • Very good adhesion on many materials

  • Excellent resistance to many chemicals


Typical Applications:

  • Sealing and bonding in the manufacturing and construction industries.

  • Structural bonding on materials subject to vibration and movement.

  • Sealing applications including concrete and flooring joints.

  • Bonding of roof tiles.

Surface Preparation:

All surfaces should be clean, dry, free of dust and grease.

Apply Soudal Primer 100 on porous substrates. Always use Primer 100 on natural stone, no primer required on non-porous substrates. All smooth surfaces can be treated with Soudal Surface Activator.

There is no adhesion on glass, PE, PP, PTFE (Teflon®) and bituminous substrates.

We recommend a preliminary compatibility test.

Application Method:

  • Application Method: With manual or pneumatic caulking gun.

  • Cleaning: Clean with white spirit or Surface Cleaner immediately after use.

  • Finishing: With a soapy solution before skinning.

  • Repair: With the same material

Joint Dimensions:

  • Minimum Width for Bonding: 2 mm

  • Minimum Width for Joints: 5 mm

  • Maximum Width for Bonding: 10 mm

  • Maximum Width for Joints: 30 mm

  • Minimum Depth for Joints: 5 mm

  • Recommendation Sealing Jobs: Joint Width = 2 x Joint Depth.


  • When painted with oxidative drying paints disturbances in the drying of the paint may occur (we recommend to do a compatibility test before application).
Data Sheets

Technical Data Sheet

Declaration of Performance (DoP)

Safety Data Sheet

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£2.75 ex. VAT | £3.30 inc. VAT

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