Styrofoam Dowels Titanum Marchewki 22 x 125 mm, set of 4

Titanum Marchewki styrofoam dowels 22 x 125 mm, set of 4 are designed to secure insulation boards and lightweight panels to masonry and solid walls. Manufactured from expanded polystyrene, these dowels provide a non-conductive thermal connection that reduces heat bridges while allowing quick, low-weight fixings. The 22 x 125 mm dimensions suit layers of insulation where the dowel length corresponds to board thickness and substrate depth, and the pack of four is intended for small installations and repairs.

Advantages

These styrofoam dowels offer a lightweight, thermally neutral fixing option that minimizes cold bridges through the insulation layer. Their polystyrene construction simplifies cutting and trimming on site and is compatible with common adhesive-based insulation systems. The dowels are easy to handle and install, contributing to faster installation times for external or internal thermal insulation works where mechanical anchoring with minimal thermal impact is required.

Suitable for

• Fixing expanded polystyrene (EPS) and mineral wool insulation boards to masonry or concrete substrates
• Small repair jobs and sample installations where a small quantity of anchors is sufficient
• Applications requiring thermal break between insulation and mechanical anchor
• Internal and external insulation systems using adhesive with additional mechanical support

Key specifications

• Material: expanded polystyrene (EPS)
• Nominal diameter: 22 mm
• Length: 125 mm
• Pack quantity: 4 pieces
• Designed for use with adhesive-based insulation systems and lightweight panels

How to use

Drill a hole in the insulation board and into the substrate to the required depth matching the 125 mm dowel length, ensuring the hole diameter corresponds to the dowel. Insert the styrofoam dowel through the insulation so that the head sits flush with the board surface, then press the insulation against the adhesive-coated substrate. If required by the installation system, complete with a compatible mechanical plug or cap according to the manufacturer's guidance for substrate strength and wind-load considerations. Trim any excess material to achieve a flat finish.

Usage recommendations

Use these dowels only with compatible adhesive systems and suitable substrates. Verify that dowel length matches the insulation thickness and embedment depth needed for your wall type. For large façades or areas exposed to significant wind loads, combine these dowels with certified mechanical anchors and follow applicable local building standards.