Owens Corning Anti-CRAK 3mm HD AR Glass Fibres

Owens Corning Anti-CRAK 3mm HD Glass Fibres (1Kg)

Price range: $30.80 through $313.50 Inc GST

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Owens Corning Anti-CRAK 3mm HD AR Fibres for Concrete Reinforcement (1Kg) (18Kg) (6Kg)

Owens Corning’s Anti-CRAK 12mm HD AR Fibres are a high-performance glass fibre solution designed to reinforce concrete—particularly in Glass Fibre Reinforced Concrete (GFRC) applications. Engineered to control and prevent cracking in fresh concrete, Anti-CRAK HD AR Fibres offer a versatile, cost-effective alternative to traditional steel reinforcement. With a robust dispersion rate of 220 million filaments per kilogram, these fibres are easily integrated into concrete mixes, ensuring excellent workability and an invisible finish on the cured surface.

Key Features & Benefits

  1. Increased Strength & Durability
    • Enhanced Crack Resistance: Controls micro-cracking in fresh concrete, reducing long-term structural issues.
    • Superior Bending & Impact Strength: Fibre glass composition resists bending, deformation, and everyday wear.
  2. Lightweight Reinforcement
    • Easier Handling & Transport: Fibre glass is significantly lighter than steel, minimizing the load on foundations and simplifying logistics.
    • Reduced Structural Loads: Ideal for projects where weight reduction is a priority, such as retrofit or high-rise structures.
  3. Flexible Design & Aesthetics
    • Thinner & Complex Shapes: Enables GFRC to be molded into intricate details or slender profiles without compromising strength.
    • Invisible Finish: Anti-CRAK HD AR Fibres do not protrude through the surface, eliminating extra finishing procedures.
  4. Corrosion Resistance
    • Long-Term Performance: Unlike steel, glass fibres do not rust, ensuring durability in moist or corrosive environments.
    • Sustainable & Environmentally Friendly: Free from harmful emissions and fully recyclable, contributing to greener construction practices.
  5. Cost-Effectiveness
    • Lower Material Costs: Fibre glass often costs less than steel, making GFRC more affordable to produce.
    • Reduced Maintenance: Longer service life and minimal corrosion decrease the need for repair or replacement.
  6. High Dispersion & Workability
    • 220 Million Filaments per kg: Assures even distribution throughout the concrete mix, improving consistency and performance.
    • Easy Mix Integration: Simple to incorporate using standard batching methods—no special tools required.

Performance Highlights

  • Corrosion-Free: Ideal for structures exposed to moisture, salt, or chemical agents.
  • Thermal Expansion Compatibility: Fibre glass handles thermal stress without cracking, maintaining the integrity of decorative or thin-walled elements.
  • Invisible on Finished Surfaces: Improves aesthetics and reduces labor on additional finishing steps.

Recommended Uses

  1. Glass Fibre Reinforced Concrete (GFRC)
    • Architectural panels, facades, and decorative elements that benefit from lighter weight and intricate shapes.
  2. Precast & Prefabricated Elements
    • Balusters, columns, countertops, and more, where reducing concrete thickness without losing strength is crucial.
  3. Renovation & Retrofit Projects
    • Ideal where added load from traditional steel reinforcement must be minimized.
  4. Outdoor & Marine Environments
    • Retaining walls, landscaping features, and seaside installations that demand high corrosion resistance and long-term durability.
  5. High Aesthetic Demands
    • Complex shapes and textured surfaces, where fibre invisibility improves surface quality without extra finishing.

Why Choose Owens Corning Anti-CRAK HD AR Fibres?

  • Proven Performance: Decades of expertise in fibre technology ensure reliability and structural integrity.
  • Sustainability: Lower carbon footprint than steel, fully recyclable, and free of harmful emissions.
  • Ease of Use: Straightforward mix design integration, no specialized equipment needed.
  • Enhanced Structural Lifespan: Reduced cracking, rust-free composition, and excellent moisture tolerance.
For contractors, architects, and DIY enthusiasts seeking a durable, lightweight, and corrosion-resistant alternative to steel reinforcement, Owens Corning Anti-CRAK 3mm HD AR Fibres offer a compelling solution. Their exceptional crack-control properties, ease of incorporation, and invisible surface finish make them a top choice for GFRC and other concrete applications demanding superior performance and design flexibility. Invest in Owens Corning Anti-CRAK HD AR Fibres to elevate the strength, longevity, and sustainability of your concrete projects.
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Additional information

Weight1 kg
Dimensions30.5 × 20.5 × 3 cm
Weight

18KG, 1KG, 6KG

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To start a return, you can contact us at sales@mact.au
Please note that returns will need to be sent to the following address:
Unit 3C, 919-925 Nudgee Road, Banyo, QLD, 4014, Australia
If your return is accepted, we’ll send you instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted. Please note that if your country of residence is not Australia, shipping your goods may take longer than expected.
You can always contact us for any return questions at sales@mact.au

Expect prompt delivery and easy tracking — every order comes with updates along the way.

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Got any question?

Browse through our frequently asked questions to find answers on everything from mould preparation and casting techniques to finishing and long-term maintenance.

Australia’s warm and, in many regions, coastal climate necessitates adjustments during manufacturing. High temperatures can accelerate hydration, so controlled curing environments—such as covering pieces with plastic to retain moisture—are essential. Additionally, lower water-to-cement ratios and carefully selected admixtures help mitigate rapid evaporation and ensure that GFRC develops its designed strength and durability.

Manufacturers address these challenges by:

  • Using precision mixing equipment to achieve a uniform blend and ensure proper fibre distribution.
  • Fine-tuning spray parameters (such as pressure, nozzle design and technique) to avoid voids, pinholes and surface defects.
  • Regular maintenance of equipment and continuous operator training.
  • Adjusting admixture dosages as required to optimise workability and adhesion.

Future trends include increased automation—such as robotic spraying and digital mould design—as well as a greater focus on sustainable practices (e.g. incorporating recycled materials and eco-friendly admixtures). Advances in fibre treatment technology and computer-aided manufacturing are enabling more complex, custom-designed panels. Ongoing research is continually refining mix designs and curing methods to better suit Australia’s diverse environmental conditions.

GFRC is a composite product that combines high‐quality cement, fine aggregates, polymers and alkali‐resistant glass fibres – all premixed to the correct proportions. Its high strength‐to‐weight ratio, durability and capacity for being cast in thin, custom shapes make it ideal for creating stylish and long-lasting benches and tables for both indoor and outdoor use.

GFRC manufacturers must comply with Australian building codes and standards relating to precast concrete, structural performance and safety. This means that production processes, material testing and installation methods are stringently monitored and documented. Close collaboration with local certifying bodies ensures that GFRC products meet all necessary performance and regulatory requirements.

With our premix product, all the ingredients are already proportioned for optimal strength and workability. This means you can focus on preparing your moulds and executing a neat cast rather than measuring raw materials.

Moulds for benches and tables can be constructed from high-density foam, melamine, or even silicone for more intricate designs. It is essential that the mould is smooth, watertight and well supported. Pre-treat the interior with a quality release agent to ensure that the cured GFRC can be removed cleanly.

Typical additional admixtures levels for a 20kg:

  • Water: 2.78L–3.0L
  • Plasticiser: 10g – 50g
  • Fibres HD: 50g-300g
  • Fibres Bundled: 400g-700g
  • Retarder: 5g-20g
  • Accelerator: 5g–20g
  • Defoamer: 1g-3g
  • Colour: up to 800g

*NOTE: All admixes will alter the way the mix behaves.

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