The Steico sealing plugs wood fiber 50–120 mm provide a smart, eco-friendly solution for sealing blow-in openings in wood fiber insulation boards. Whether you’re working on a new build or a renovation project, these plugs offer fast, clean, and long-lasting closure.
Thanks to their tapered toothed-ring profile, the plugs fit securely—without requiring glue or primer. Installation is easy: you can insert them by hand or with a rubber mallet. In addition, the hydrophobized wood fiber material immediately repels moisture, ensuring weather protection and a consistent render finish.
Because the material matches Steico render boards, you benefit from seamless integration and excellent surface aesthetics. Moreover, the use of natural wood fiber ensures sustainability without compromising performance.
Available in multiple diameters from 50 mm to 120 mm, these Steico sealing plugs come packaged in practical carton units. As a result, they are suitable for small-scale and large-scale insulation systems alike.
🟩 Key Advantages
-
Easy and fast installation with no adhesive needed
-
Immediate protection against weather exposure
-
No visible transitions – clean and seamless finish
-
Identical material properties to Steico render boards
-
Ideal for both new constructions and retrofits
-
Multiple diameters for flexible applications
🟩 Technical Details
-
Material: Natural wood fiber
-
Bulk Density: ~210 kg/m³
-
Compressive Strength: >25 kPa
-
Fire Rating: Class E (DIN EN 13501-1)
-
Surface: Hydrophobized for weather resistance
-
Compatibility: Matches Steico render board properties
Sold by the box. Larger quantities available on request.
🟩 Pro Tip
For precise holes, we recommend the BK 105 core drill bit, which aligns perfectly with the closure plug dimensions.
