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ST Sealant

ST Sealant
Sealing with EPDM cellular rubber offers unique advantages. EPDM rubber seals against moisture, cold, warmth, wind and sound and is water-repellent. Thanks to its closed cells it also has good insulating characteristics and a high resilience and resistance to ageing. - Trelleborg
  • Test certificate for use as a damp proof course

Available dimensions

Article number Roll width Roll length Thickness Carton Rolls / Pallet Inquiry List
3ST100 100 mm 25 m 10 mm 10 rolls 10 rolls
3ST150 150 mm 25 m 10 mm 8 rolls 8 rolls
3ST175 175 mm 25 m 10 mm 6 rolls 6 rolls
3ST200 200 mm 25 m 10 mm 6 rolls 6 rolls
3ST250 250 mm 20 m 20 mm 3 rolls 3 rolls
3ST420 420 mm 20 m 20 mm 2 rolls 2 rolls

Field of application

  • sealing of thresholds and finished wall elements
  • against moisture
  • against cold
  • against heat
  • against wind
  • against noise


  • does not absorb water; Water has no effect on the material
  • high temperature resistance
  • chemically stable, uncomplicated in contact with other materials
  • includes no diluents or additives, recyclable
  • high resistance to aging
  • windproof and thermal insulation

Product data

The use of EPDM cell rubber tubes as a seal provides unrivalled advantages. They seal against damp, cold, heat, wind and noise and are water-repellent. Due to the closed cells the insulating properties are good. The seals excel with their resilience and high resistance to ageing. Authorized as protection against rising humidity; certificate: P-5086/7244-MPA BS. Meets the requirements of the criterion catalogue Toxproof
Material composition
2 hoses Ø 10 mm or 20 mm EPDM - Cellular rubber on a 0,2 mm PE - film
Black, PE- Film blue transparent
130 m
Temperature resistance
-40 °C
Temperature resistance
80 °C
fully and permanently
Age resistance
Age resistance
50 years
Cool and dry
Sealing characteristic
To seal up at 50 Pascal air pressure difference; the opening breadth has to be at most 75% of the profile height

Processing guideline


Used with the foil face-up and the hoses to down. If it was put in a mortar bed the foil shall face the mortar and the sealing hoses are on top. Attachment can happen with stamps. Attention: the hoses shall not be stamped, and the foil shall not be stamped in areas that should work as humidity protection.