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Soudal Soudaseal 215LM joint sealant permanently elastic white 290 ml

Description

Soudaseal 215LM is a 1-component joint sealant based on hybrid polymer for building construction and connection joints. It cures without bubbles to a permanently elastic sealing compound – suitable for expansion joints as well as connection joints between window/door frames and masonry.

Benefits at a glance

  • Permanently elastic, even with strong joint movement
  • Colour-fast, weather- and UV-resistant
  • Solvent-, isocyanate- and silicone-free, almost odourless
  • Adheres without primer even on damp substrates
  • Can be painted over to DIN 52452, non-corrosive

Areas of application

  • Building expansion joints to DIN 18540
  • Connection joints between window/door frames and masonry
  • Stress-free bonding of window sealing tapes
  • Compensating joints where materials expand differently
  • Compared with silicone: paintable and solvent-free

Chemical and technical properties

Base: MS polymer (hybrid polymer), density 1.45 g/ml, Shore A hardness 25 ± 5. Skin formation approx. 10 min. (23 °C/50 % RH), through-curing approx. 2 mm/24 h. Tensile strength 1.30 N/mm², elongation at break over 900 %. Temperature-resistant -40 °C to +90 °C, application +5 °C to +35 °C. Complies with DIN 18540 F and ISO 11600 F 25LM.

Application tips

Keep the substrate sound, clean and free of dust and grease. Apply with a manual or compressed-air gun, smooth with smoothing agent or soap solution before a skin forms. Pre-treat porous substrates with Primer 150, smooth surfaces with Surface Activator. Clean before curing with Surface Cleaner, afterwards with silicone remover.

Technical data

Area of use: Exterior, Interior
Colour: white
Content: 290 ml
Material: MS polymer
Pack size: 290ml cartridge
Technical highlights: Standard: DIN 52452-A1
Technical data
Product type: Joint sealant
Product group: MS polymer & hybrid sealants
Shore hardness: Shore A 25
Use
Field of use: Indoors, outdoors
Application
Through-curing: 2 mm/24 h

Data sheets

Data sheets and documents

All documents come unchanged from the manufacturer.

Manufacturer information

Manufacturer information pursuant to Art. 19 EU GPSR

Postal address Soudal N.V.
Everdongenlaan 18-20
2300 Turnhout
Belgium

Electronic address verkauf@soudal.com

All products by Soudal

Information as of: 2026-09-17

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For your project

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Project: Expansion and connection joints on the façade

Clean the joint flanks mechanically, prime porous flanks and insert a closed-cell backing cord so that the joint becomes about twice as wide as deep. Then apply the permanently elastic sealant, smooth it and pull off the masking tape immediately.

  1. Prepare the surface

  2. Tools & accessories

  3. Finish & care

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