MACt GFRC Premix – SCC Silica Free

MACt GFRC Premix – SCC (Self-Consolidating Concrete) Silica Free is a high-performance blend formulated for ultra-durable, crack-resistant glass fibre reinforced concrete applications. Engineered to withstand thermal shock far better than standard GFRC mixes, it excels in demanding environments—such as basins, bathtubs, and custom architectural elements. By eliminating silica content, this premix ensures a safer production process while retaining the strength, flowability, and versatility professionals expect from a premium GFRC product.

Key Features & Benefits

1. Silica-Free & Safe
   • Reduced Health Risk: Protects workers from silicosis and other respirable silica-related hazards.
   • Regulatory Compliance: Ideal for sites enforcing strict silica dust control measures.
2. Self-Consolidating & Flowable
   • Easy Pour & Shape: Smooth, creamy consistency allows effortless filling of complex moulds with minimal vibration.
   • Enhanced Work Efficiency: Quick and uniform coverage shortens labour time and reduces on-site finishing needs.
3. Superior Thermal Shock Resistance
   • High Crack Tolerance: Withstands sudden temperature variations or repeated heat cycles, reducing failure risk in bathtubs, basins, and exterior elements.
   • Durability in Extreme Conditions: Less prone to shrinkage or thermal expansion cracking, ensuring long-term structural integrity.
4. Robust Performance & Eco-Friendly
   • Lightweight Yet Strong: Supports intricate designs with minimal weight while delivering outstanding compressive and flexural strength.
   • Environmentally Conscious: Manufactured from sustainable materials and methods, plus extended product lifespan reduces overall environmental impact.
5. User-Friendly Mixing
   • Simplified Preparation: Requires only potable water and the premix itself (plus fibres, colour, and optional retarder), minimising trial-and-error.
   • Consistent Quality: Formulated to eliminate variable site batching issues, promoting repeatable, professional-level outcomes.

Recommended Uses

• Basins, Bathtubs & Water Features: Thermal-shock resistance maintains structural soundness under quick temperature changes.
• Architectural Elements: Perfect for large or ornate pieces that demand consistent flow and surface detail.
• Interior & Exterior Decorations: Craft unique, durable furniture, countertops, or decorative panels.
• High-Temperature Areas: Fire pits, surrounds, and other installations subjected to repeated heat exposure.

Mixing Instructions & Tips

1. Safety First
   • PPE & Ventilation: Wear gloves, eye protection, and a dust mask; ensure ample airflow.
   • Handle Powders With Care: Even though silica-free, GFRC mixes can irritate lungs, eyes, and skin if inhaled or contacted.
2. Ingredient Preparation
   • Accurate Weighing: Precisely measure water, premix, fibres, plasticiser, colourants, and optional additives.
   • Dry Mix: Combine premix, colour, and plasticiser before adding liquids for an even distribution.
3. Water & Premix Addition
   • 80% Premix First: Introduce most of the premix into water while mixing. Blend thoroughly.
   • Remaining 20%: Add the rest of the premix, scraping the bucket sides and bottom to eliminate lumps.
4. Consistency & Fibres
   • Plasticiser Over Water: Adjust flow with plasticiser instead of water to avoid colour changes or weakened strength.
   • Fibre Integration: Finally add fibres once desired flowable texture is reached, ensuring uniform dispersion.
5. Example Flowable Mix- * these mixes will change dependent on conditions 
   • MACt SCC Premix (20 kg)
   • 4 L Water
   • 40 g 3 mm HD Fibres
   • 350 g 13 mm Bundled Fibres
   • 10 g MACt Retarder Pro (Optional)
   • Colour (As Desired)

Benefits of MACt SCC Premix – Silica Free

• Thermal-Shock Durability: Far greater tolerance for abrupt temperature swings compared to regular GFRC.
• Safe & Regulatory-Friendly: Elimination of silica dust hazards for a healthier workspace.
• Efficient Placement: High flowability minimises manual finishing, labour, and potential errors.
• Consistent & Reliable: Manufactured under strict QC standards, ensuring uniform performance across batches.
• Eco-Conscious Approach: Developed with sustainability in mind, extending the service life of GFRC products.

MACt GFRC Premix – SCC Silica Free pushes the boundaries of traditional GFRC by offering superior crack resistance, high-temperature tolerance, and a silica-free composition for improved worker safety. Whether you’re crafting custom basins and tubs or tackling complex decorative features, this premix streamlines installation and ensures durable, professional-grade outcomes. With MACt’s proven manufacturing and thorough quality controls, you can trust MACt SCC Premix for robust, long-lasting results that stand up to thermal stress and reduce health risks on the job site.