Effisus Stopper

Penetration sealing solution for flat roofs and facades

Effisus Stopper is an innovative solution for sealing penetrations, of any size or configuration, on flat roofs.

The Effisus Stopper system can be installed on the most common roofs: asphaltic membranes, PVC, TPO, EPDM or metal.

Application on sloped, metal roofs also possible.

It is an extremely versatile solution, with precast molds and innovative sealants, quick and easy installation – no need for mechanical fastening and adaptable to any configuration.

It is the quick and easy to install waterproofing solution, with a long-term warranty.

Why should you choose Effisus Stopper?


  • Flexible design, adaptable to any configuration
  • 100% waterproof, resistant to UV’s and ozone
  • Permanently flexible
  • Easy to install. Simple to handle materials and commonly used accessories
  • Supplied in kits for complete installation
  • Technical support to any project


  • Great longevity
  • No maintenance required
  • Sealants without solvents

Effisus Stopper – Penetration sealing solution for flat roofs and facades

KIT3 Effisus Stopper

1 – Effisus Stopper Sealent 1-P
2 – Effisus Stopper M-1 Sealent
3 – Effisus Stopper Pre-cast Molds

System Components:

  • Effisus Stopper EC / CE Molds  – Prefabricated molds in polyester resin, with high durability and resistance to UV’s. Different sizes and configurations available, allowing a perfect fit to any configuration.
  • Effisus Stopper 1-P Sealant   – Self-levelling sealant to fill the molds in horizontal applications. When applied, it ensures a 100% waterproof element, while being permanently flexible, resistant to UV’s and to high temperatures. Elongation capacity of up to 300%.
  • Effisus Stopper M-1 Sealant    – Structural sealant for gluing the Effisus Stopper EC / EC molds to the structure. Without solvents, applicable to horizontal or vertical surfaces, resistant to UV’s. Does not suffer volume changes during its lifetime.
  • Effisus Stopper SAS Sealant – Sealant to fill Effisus Stopper EC / EC molds in vertical or tilted applications. Does not drip and does not shrink. With a unique technology in polyether, it is extremely elastic.
  • Selante Effisus Stopper SAS HT Sealant to fill Effisus Stopper EC / EC molds for applications where the surface temperature can exceed 100ºC. Resistant to temperatures of up to +204 ºC. Highly elastic does not drip, can be applied on horizontal or vertical surfaces.

Typical Applications

Multiple penetrations

Multiple penetrations

Penetrations on metal roofs

Penetrations on metal roofs

Irregular shaped penetrations

Irregular shaped penetrations

Supporting Information

Product Brochure

Technical Datasheets

Projects with Effisus Stopper


Cultural Center of Viana do Castelo


Xyami Nova Vida Shopping– Angola


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