Sprayed - Oscrete

Glassfibre Reinforced Concrete (GRC) is a lightweight, high-performance material used across architectural, civil, and decorative applications. Among its production methods, the spray-up technique stands out for delivering superior strength and fibre distribution — making it the preferred choice for structural panels, large-format cladding, and complex shapes.

Sprayed GRC involves pneumatically applying a cement-rich slurry and chopped alkali-resistant glass fibres onto a mold surface. This method allows for high fibre content (typically 3–5%) and optimal fibre orientation, resulting in excellent flexural strength and impact resistance. It’s particularly well-suited to vertical surfaces, curved profiles, and intricate designs that demand both durability and precision.

Why Choose Sprayed GRC?

Structural integrity: High fibre loading and directional placement improve mechanical performance
Design freedom: Enables thin sections and complex geometries without compromising strength
Efficient layering: Mist coat and backer layers allow for tailored surface finishes and reinforcement
Reduced weight: Ideal for cladding systems where load reduction is critical

Whether you’re producing façade panels, architectural features, or bespoke installations, sprayed GRC delivers the strength and flexibility needed for demanding environments.

Oscrete’s Expertise in Sprayed GRC

At Oscrete, we support sprayed GRC manufacturers with a specialised range of admixtures and additives designed to optimise every stage of production. Our solutions help improve spray consistency, reduce rebound, enhance compaction, and deliver smooth, defect-free finishes.

Our sprayed GRC product range includes:

Superplasticisers for improved flow and reduced water content
Thickeners and deflocculants to control viscosity and sprayability
Polymer additives for enhanced flexibility and surface finish
Curing agents to support long-term durability and shrinkage control
Surface treatments for improved adhesion and weather resistance

Technical Support & Innovation

Oscrete’s technical team works closely with GRC producers to fine-tune mix designs, troubleshoot production issues, and develop bespoke formulations. Our onsite laboratory enables rapid testing and validation, while our New Product Development (NPD) programme ensures we stay ahead of evolving market needs.