Aeration Roller Topex 25 cm with 14 mm Spikes, Model 20B801

The Topex aeration roller 25 cm with 14 mm spikes (model 20B801) is a hand-operated tool designed for venting and preparing fresh screeds and floor toppings. The roller's spiked surface punctures the top layer of cement and anhydrite screeds to release trapped air, reduce surface blistering and improve the bond and working consistency of subsequent finishes. Its compact 25 cm working width makes it suitable for targeted treatment of smaller areas and edges during construction and renovation tasks.

Advantages

The aeration roller features durable spikes that penetrate surface layers without adding chemical agents; this mechanical action helps achieve more uniform leveling and better adhesion of finishing compounds. Its lightweight, straightforward design allows for controlled manual operation and easy handling in confined spaces. The 14 mm spike length is selected to reach typical surface layers of fresh screeds while minimizing disturbance to the underlying substrate.

Suitable for

• Venting and de-aerating fresh cement screeds
• Preparing anhydrite (calcium sulfate) floor toppings before finishing
• Working on small to medium repair areas and edges
• Use during renovation and construction projects requiring improved surface adhesion

Key specifications

• Working width: 25 cm
• Spike length: 14 mm
• Type: manual aeration/venting roller
• Intended materials: cement and anhydrite screeds and floor toppings
• Application: surface venting to release trapped air and improve adhesion

How to use

Use the roller on freshly laid screed while the surface is still workable but has begun to set enough to carry the roller without deep rutting. Roll evenly across the surface with light pressure so the 14 mm spikes penetrate the top layer and release trapped air. Overlap passes slightly to ensure consistent coverage. Avoid excessive force that could create deep holes or damage the substrate. Clean the roller after use to remove residual material and prevent clogging of the spikes.

Usage recommendations

For best results, perform aeration after initial screed leveling and before applying any sealers or finishing layers. Inspect the surface after venting to confirm uniformity and to decide if a second pass is necessary. Store the roller in a dry place and clean it immediately after use to maintain spike performance.