Esasil® 301P

Esasil® 301P

Esasil® 301P

• Commercial Name: Esasil® 301P
• Form: White powder (siloxane-based water-repellent)
• Base: Powdered siloxane water repellent
• Active content: 50%
• Bulk density: ~0.60 g/cm³
• Mean particle size: 200–300 µm
• pH: 8–9
• Total Quantity: 3,000 kg
• Packaging: 20 kg paper bags
• Batch: 1 batch – 3,000 kg total
• Production Date: July 2025
• Expiry / Shelf Life: July 2026
• Warehouse Location: Gambellara (Italy)

Applications:

Esasil® 301P is suitable for a wide range of mineral construction materials, including:

• Joint fillers
• Ready-mixed lime and cement products
• Mortars (installation mortars, restoration mortars)
• Plasters and finishing plasters (interior and exterior)
• Concrete and piling – including jet grouting for foundations
• Plastic ready-mixed formulations
• Waterproofing of highly alkaline building materials

It can be used even on damp substrates and maintains effectiveness under demanding environmental conditions.

Description:

Esasil® 301P is a high-performance powdered siloxane water repellent designed for mineral-based construction systems. It is specifically engineered to provide long-lasting hydrophobic protection when incorporated into dry blends such as mortars, lime-based products, cement mixes, and ready-mixed plasters.

The product offers 50% active content, excellent dispersibility, and high resistance to alkaline environments (up to pH 9), making it suitable for fresh concrete and other high-alkalinity substrates. Once applied, it reacts with atmospheric moisture to build a breathable, non-film-forming hydrophobic barrier, preventing water absorption while preserving vapor permeability.

Key Features:

• High-performance hydrophobic agent for mineral systems
• Excellent dispersion in water-based mixes
• No water-repellent effect during mixing – activates after application
• Strong resistance to alkalis (fresh concrete, high pH)
• Prevents water penetration, cracking, and surface degradation
• Protects against rain, acid rain, dirt, microorganisms, and pollutants
• Breathable treatment – does not block gas or vapor transmission

Recommended Usage: 

Typical dosage: 0.2% – 0.8% of total dry formulation weight, depending on the desired level of hydrophobicity. Testing is recommended to determine optimal concentration in each specific system.

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