🧱 Product Overview:

Excelsior Bonding Liquid is a clear, un‑pigmented penetrating sealer and primer designed to stabilize chalky, powdery, or friable surfaces—ensuring strong adhesion of subsequent paint coats for both interior and exterior use 

🔧 Key Features

• Penetrates & binds loose, powdery, or porous substrates (e.g., chalky plaster, friable concrete)

• Enhances adhesion, preventing peeling, flaking, or cracking of topcoats 

• Clear finish ensures underlying color/tint remains unaffected 

• Versatile compatibility: suitable under water-based, oil-based, latex, and acrylic paints

• Easy application via brush, roller, or low-pressure spray; fast-drying formulation

• Low odor & eco-friendlier compared to solvent-heavy alternatives 

🏗️ Applications

• Prepare old plaster or masonry that has become powdery or dusty

• Seal and strengthen porous concrete, fibre‑cement, gypsum walls, and wood

• Ready faded or chalked paint surfaces before repainting

• Ideal primer under Excelsior Universal Undercoat and various topcoats

📐 Technical Specifications

• Color: Clear

• Pack Size: 1 L 

• Coverage: Typically saturates porous surfaces; recommended to apply liberally until surface is uniformly dampened 

• Drying Time: Fast-drying (touch dry in ~1 hr; ready for undercoat or repaint in ~16 hrs)

✔️ Benefits at a Glance

• Stabilises problematic substrates for priming or painting

• Clear sealant—doesn’t affect paint color

• Durability enhancer for topcoat performance

• User-friendly: low fumes, easy to apply and dries quickly

• Quality-backed: returnable under standard life-expectancy guarantee 

✅ Recommended Usage

1. Ensure surface is clean, dry, and dust-free.

2. Apply a uniform coat until the surface appears evenly damp.

3. Allow full drying (approximately 16 hours).

4. Follow up with undercoat (e.g. Universal Undercoat) and your chosen topcoat.