Bitumen WB Balcony

Under Screed & Tiles

Fleeced®-On Bitumen WB System – Ultimate Under-Tile Waterproofing for Bathrooms

Engineered for superior performance, the Fleeced®-On Bitumen WB System is a water-based modified bitumen waterproofing solution, specially developed for under-tile protection in bathroom wet areas. This complete system ensures a durable, flexible, and seamless barrier against water ingress, safeguarding concrete substrates from long-term damage.

✅ Bitumen WB – A water-based bitumen coating that keeps water out.

✅ Primer Bond – Helps the coating stick better to the surface.

✅ Fleece – Adds strength and helps cover cracks.

🏢 Perfect for balconies, podium decks, and terraces.
🛡️ Strong, flexible, and seamless protection.
🔖 Patent Pending: PI2025003564

Built to last. Easy to apply. Total peace of mind.

Field of application

Build-up

Properties - Advantages

Flat Roofs & Balconies
Concrete Slabs & Foundations
Basements & Underground Structures

Exceptionally high elasticity and crack-bridging properties
Excellent adhesion on various substrates
High resistance to ponding water and abrasion
Retains its elasticity even in very low temperatures (down to -40°C)
Easy to apply (one-component-cures with the ambient humidity
High chemical resistance
Fast-drying

🛠️ Step-by-Step Installation: Fleeced®-On Bitumen System (Balcony Under-Screed & Tile Waterproofing)

Step 1: Surface Preparation

Clean the entire bathroom floor to remove dust, dirt, and debris.Patch any visible holes using non-shrink grout or tile adhesive cement. Ensure the surface is smooth and level before proceeding.
Step 2: Material Preparation & Dilution Guide

Stage 1 – Primering: Mix 1 cup Primer Bond + 1 cup Water.

Stage 2 – Fleece Application: Mix 1kg Solid Bitumen + 250ml Water.

Stage 3 – Finishing Layer: Mix 1kg Solid Bitumen + 100ml Water.

Step 3: Apply Primer mixture to the entire floor slab and wall skirting (up to 100mm high). Allow it to dry for at least 30 minutes before continuing.

Step 4: Pipe Collar Protection (PVC Pipe Area)

Stage 1 - Cut the fleece into a 30cm x 30cm square. Fold it in half, then fold diagonally again.

Stage 2 - Trim off the pointed tip to create a small opening.

Stage 3 - Carefully insert it over the PVC pipe until it fits around pipe.

Step 5: Apply Bitumen WB around the pipe area.

Place the fleece on the wet Bitumen, then immediately apply another coat of Bitumen WB on top until fully sealed.

Step 6: First Layer – Floor Area (Wet-on-Wet Method)

Apply a stripe of Bitumen WB on the floor, slightly wider than your fleece roll. Immediately lay the fleece onto the wet surface. Apply another coat of Bitumen WB on top of the fleece until it is fully covered.

Step 7: Continue Floor Application

Repeat the wet-on-wet process. Ensure each fleece strip overlaps the previous by 3 inches (about 7.5cm). Allow the whole area to dry for 1 day before proceeding to wall skirting.

Step 8: Skirting Area Application

Use the same wet-on-wet method for the wall skirting (minimum 100mm height). Apply Bitumen WB, embed fleece while wet, and cover with more Bitumen WB.