Sikalastic-1K ES

Professional Waterproofing Protection with Sikalastic-1K ES

Sikalastic-1K ES is a one-component, fibre-reinforced mortar engineered for flexible waterproofing and concrete protection in demanding construction applications. This premium-quality cement-based mortar combines traditional reliability with modern polymer technology to deliver superior performance on both new construction and repair projects.

Key Features & Benefits

Flexible Crack-Bridging Technology

The fibre reinforcement provides exceptional crack-bridging capability, preventing water infiltration and protecting concrete structures from moisture damage. This flexibility ensures the mortar moves with the substrate without cracking, maintaining a waterproof seal even under structural stress.

Superior Adhesion & Substrate Compatibility

Sikalastic-1K ES bonds excellently to concrete, cement mortars, masonry, and stone. It performs reliably on damp surfaces and vertical applications, eliminating the need for extensive substrate drying—saving time on site and reducing project delays.

Easy Application & Mixing

As a one-component product, simply add water to achieve the desired consistency. The adjustable mix allows application by brush, roller, or trowel, giving professionals flexibility in technique and finish quality.

Technical Specifications

• Consumption rate: 1.2 kg/m² per mm of thickness
• Cement-based formula modified with alkali-resistant polymers
• Shelf life: 12 months in original sealed packaging
• Storage: Cool, dry conditions away from moisture

Ideal Applications

Perfect for waterproofing terraces, balconies, concrete repairs, and protective coatings. Recommended for professional contractors, construction companies, and rehabilitation projects requiring certified, high-performance materials backed by decades of industry expertise.