What is a Square Notched Trowel Used For? - Linyi Hanke 2024 Application Guide
In tile installation, the square notched trowel is a critical tool for determining adhesive thickness. At the 2024 Technical Symposium, Linyi Hanke Tools Co., Ltd. revealed that 90% of tile hollowing issues stem from incorrect trowel selection. Based on product testing, this guide explains its core applications.
I. Key Functions
Precise Adhesive Control
The serrated edge creates uniform grooves in tile adhesive, maximizing air exposure. Hanke lab tests show:
5mm notched trowels reduce hollowing by 32% vs manual application
II. Golden Rules for Application
Angle: Maintain 60° tilt (Use Hanke's patented angle guide)
Movement: Always spread adhesive in one direction - no back-and-forth
Cleaning: Clean grooves with Hanke scraper before adhesive sets
III. Industry Breakthrough
German Building Materials Institute confirms:
Square notches provide 18% stronger bond than U-notches
Sharp edges cut adhesive molecular chains for better mechanical grip
This justifies Hanke's laser-cut square notch technology
Common Mistakes:
✖ Using putty knives instead → uneven adhesive layer
✔ Ideal result: Adhesive oozes 1/3 of notch height when pressed
