Synthetic and alkali-resistant fibres for enhanced performance in concrete, mortar, screed, and render applications
Fibres play a vital role in modern construction materials, offering targeted reinforcement that improves durability, reduces cracking, and enhances long-term structural integrity. Oscrete supplies a range of synthetic and alkali-resistant glass fibres designed to meet the demands of high-performance concrete and mortar systems — from precast elements and dry silo mortars to site-applied renders and flooring compounds.
Whether you’re looking to reduce plastic shrinkage, improve tensile strength, or support long-term durability in aggressive environments, Oscrete’s fibre technologies offer reliable, easy-to-integrate solutions across a wide range of applications.
Why Use Fibres in Construction Materials?
Fibres are increasingly used to complement traditional reinforcement methods, offering benefits that improve both fresh and hardened concrete properties. Oscrete’s fibres are formulated to deliver:
- Crack control – Reducing plastic shrinkage and micro-cracking during curing
- Improved durability – Enhancing tensile strength and resistance to impact or abrasion
- Alkali resistance – Supporting long-term performance in cementitious environments
- Even distribution – Ensuring consistent reinforcement throughout the mix
- Ease of use – Compatible with standard batching and mixing processes
These benefits are especially valuable in thin-section applications, precast production, and decorative finishes where surface integrity and dimensional stability are critical.
Oscrete’s Fibre Technologies
Our fibre portfolio includes both micro and macro synthetic fibres for general reinforcement and alkali-resistant glass fibres for demanding environments and specialist applications.
Synthetic Fibres
Oscrete’s synthetic fibres are designed to reduce plastic shrinkage and improve early-age crack resistance. They are ideal for use in:
- Concrete slabs and toppings
- Screed and floor levelling compounds
- Precast elements and site-poured concrete
These fibres disperse easily during mixing and provide uniform reinforcement throughout the matrix, helping maintain surface integrity and reduce the need for remedial work.
Alkali-Resistant Glass Fibres – Cem-FIL® 70.3 & Cem-FIL® 62.4
Manufactured by Owens Corning, these high-performance fibres are engineered for use in cement-based systems. Their alkali-resistant coating ensures long-term durability in aggressive environments, making them ideal for:
- External render systems
- Tile adhesives and grouts
- Architectural precast and façade elements
Cem-FIL® fibres offer excellent tensile strength, low elongation, and high resistance to chemical degradation — supporting both structural and aesthetic performance.
Supporting Innovation & Performance
Oscrete’s fully equipped lab is dedicated to testing and developing fibre-reinforced systems across concrete, mortar, and render applications. We also collaborate with supply partners’ labs and technical teams, giving customers access to a broad network of formulation expertise and performance support.
Whether you’re manufacturing bagged products or working on-site, Oscrete’s fibre solutions help ensure stronger, more resilient materials with reduced cracking and enhanced durability.
To explore the right fibre for your mix design, visit our Product Selector or contact the Oscrete technical team directly.
Oscrete – Performance Through Partnership
