1/2" Trowel for Schluter Heating Systems (Wire-Safe)

If you are installing a Schluter Ditra-Heat floor system (or any radiant heated floor), you know the anxiety of spreading thinset over those expensive heating cables. One slip with a sharp metal trowel can nick a wire and ruin the entire heating loop.

I designed this heavy-duty plastic trowel specifically to glide safely over heating wires without cutting them!

Key Features:

• Heating Wire Safe: Made of plastic to prevent nicking, scraping, or shorting out Schluter cables during thinset application.

• True 1/2" (12.7mm) Square Notches: Perfectly sized for large format floor tiles.

• Dual-Edge Design: The long edge handles the main floor, while the short edge is notched specifically for "back-buttering" tiles or getting clean coverage in tight corners.

• Bonus Gap Checker Included: The file prints with a small, extra corner piece. You can use this as a gauge to check the gaps between the teeth on your trowel to ensure your printer extruded accurately and you have the perfect 1/2" spacing!

• Large Footprint: Sized at 200mm (8 inches) to fit on standard 220x220 build plates (Ender 3, Bambu A1/P1, etc.).

Print Settings

• Filament: PETG or PLA is recommended for flexibility, durability, and safety against the wires.

• Infill: 40% - 50% (Gyroid or Cubic is best for structural strength).

• Walls/Perimeters: 4-5 walls (Crucial so the teeth don't snap off while dragging heavy mortar).

• Supports: No supports needed. Print completely flat on the bed.

Post-Printing

Check your printed trowel with the included gap-checker piece. If you have any sharp "elephant's foot" or burrs on the bottom from printing, give it a quick scuff with sandpaper so it slides smoothly over your heat mat.