🎄 Christmas Dispatch Notice
Please note that Clever Shield will be closed for the Christmas period starting from Friday 19 December 2025.
-
Last dispatch before Christmas:
• Wykamol products: Friday 19 December, 11AM
• Newton products: Monday 22 December, 2PM
• All other products: Thursday 18 December, 1PM - Orders placed during the Christmas closure will be dispatched from Friday 2 January 2026.
To avoid delays, we recommend placing your orders as early as possible.
Thank you for your continued support. We wish you a Merry Christmas and a Happy New Year!
Description
Sikalastic®-851 – Fast-Curing Polyurethane/Polyurea Hybrid Waterproofing Membrane
Sikalastic®-851 is a two-part, elastic, 100% solids waterproofing membrane with ultra-fast curing and exceptional performance for concrete and steel substrates. This polyurethane/polyurea-hybrid coating delivers long-lasting protection in demanding environments, including bridge decks, car parks, water treatment structures, and submersed infrastructure.
Key Benefits:
-
Ultra-Fast Curing – Return-to-service in record time
-
Wide Application Range – Effective in temperatures from -10°C to +50°C
-
High Performance – Withstands dry temperatures from -30°C to +100°C
-
Crack Bridging – Excellent flexibility and resilience
-
Abrasion Resistant – Built for durability in high-traffic areas
-
Moderate Chemical Resistance – Suitable for industrial environments
-
Not UV Resistant – Requires topcoat for exposed surfaces
Typical Uses:
On Concrete:
-
Bridge deck waterproofing (certified under BBA/HAPAS & ETAG 033)
-
Tank, bund, and pit lining in fresh water zones
-
Submerged and below-grade structures
-
Walkways, balconies, and car park decks
-
Power plant water retention structures
On Steel:
-
Truck bed lining
-
Heavy-duty, abrasion-prone metal surfaces
Compatible Primers:
-
Sika® Concrete Primer – For cement-based surfaces
-
Sika® Bonding Primer – Water-based epoxy to enhance adhesion
TDS
Primers
Sika® Concrete Primer is a two-component, rapid curing, high solids, polyurea/polyurethane-hybrid primer for consistent and durable adhesion of SikaRoof® MTC, Sikalastic® and Sikafloor® Systems on cement based substrates.
Sika® Bonding Primer is a two-component, water based epoxy primer to consolidate substrates and enhance the adhesion of Sikafloor® and Sikagard® products
Click here for Sika relevant polyurea primers
Video
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
Security
You may also be interested in
Recently viewed
What Our Customers Say