Sto
Your Walls, Our Pride
Unitex is a brand within the Sto Group that provides façade systems for residential & commercial projects. Big River is an authorised distributor of the full Unitex range.
Explore the Range

Unitex® Base Board Render BBR 8.5
Designed for application as a build coat for the Unitex Base Board™ and IB Board systems. Applied at minimum thickness of 5mm. A super lightweight product (8.5kg) and easy to use for most skill levels.

Unitex® HiLite Render™
Unitex® Uni-Dry Cote® HiLite Render™Suitable for all high and very high-build applications over uneven surfaces.

Unitex® Beach Render Non-Combustible
Unitex® Uni-Dry Cote® Beach Render is certified Non-Combustible and is fully compliant with AS 1530.1.Designed for application over clean brickwork and block work

Unitex® Harbour Fine™ Non-Combustible
Unitex® Uni-Dry Cote® Harbour Fine™ is certified Non-Combustible and is fully compliant with AS 1530.1. Designed for application over clean brickwork and block work. It is available as a fine grade render for sponge finishing.

Uni-Trowel Décor™ 333
Fine Sand Finish product from the Unitex® range of Applied Texture Finishes.
Unitex® Redi Render™ Non-Combustible
Unitex® Uni-Dry Cote® Redi Render™ is certified Non-Combustible and is fully compliant with AS 1530.1.

Unitex® Aero Render
Unitex® Uni-Dry Cote® Aero Render is certified Non-Combustible and is fully compliant with AS 1530.1.
About Sto
Sto is a global leader in building materials, specialising in façade systems, renders, coatings, and external wall insulation solutions. The company’s origins date back to a lime and cement works established in 1835, which later evolved under the Stotmeister family into a modern construction technology business.
Today, Sto offers a comprehensive product range including façade coatings, plasters, paints, insulation systems, acoustic solutions, and concrete repair technologies. These products are designed to enhance durability, aesthetics, and sustainability across residential, commercial, and industrial projects.
A defining part of the Sto brand is its philosophy “Building with conscience,” reflecting a strong commitment to environmental responsibility, quality, and innovation. Backed by ongoing research and development, Sto continues to set industry benchmarks while maintaining its roots as a family-influenced, long-term focused global business. and coatings.
Engineered for Performance
Complete Facade Systems
Integrated cladding, render, texture, and coating solutions.
Design Flexibility
Enables high-end architectural finishes and custom facade detailing.
Proven Durability
Designed for long-term performance and aesthetic results.
Recent Projects

Materials palette channels Mediterranean design
Materials palette channels Mediterranean design into everyday living at boutique Gold Coast community. Big River Group supplied key...

The Rose Fitzroy
With roots deeply entrenched in the local community, iconic pub The Rose, in Fitzroy, Victoria recently underwent a...

Taronga Zoo Installation
Big River’s timber helps build an oasis in the heart of Sydney The design brief for this ‘forever...
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