MACt Benchtop Starter Kit

MACt Concrete Benchtop Starter Kit: A complete solution for creating a durable, high-quality concrete benchtop up to 4 sqm. Includes silica-free GFRC premix, premium sealer, plasticiser, and reinforcing fibres for a smooth and crack-resistant finish

$715.00 Inc GST

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The MACt Concrete Benchtop Starter Kit is an all-in-one solution designed to help you create a high-quality, durable benchtop. With products specifically formulated for GFRC (Glass Fibre Reinforced Concrete) and Australian construction standards, this kit provides everything you need to cover up to 4 sqm at a 25mm thickness—whether you’re crafting a completely new benchtop or renovating an existing one. From silica-free premix for safer handling to premium alkali-resistant fibres for enhanced strength, this kit makes achieving a smooth, professional finish easier than ever.

Key Features & Benefits

  1. Silica-Free Premix
    • Health-Conscious Choice: Eliminates silica dust hazards, ensuring a safer work environment.
    • Smooth Consistency: Produces a uniform finish without lumps or bumps.
  2. Reinforcing Fibres
    • High Dispersion Alkali-Resistant Bundled Fibres: Minimises microcracking while adding superior durability.
    • Owens Corning Anti-CRAK HD Fibres: Strengthens the mix for long-term resilience and structural integrity.
  3. Premium Plasticiser
    • Enhanced Workability: Transforms the mixture into a pourable consistency for easier application and a more refined finish.
    • Professional Results: Ensures even flow, reducing labour time and effort during the pouring process.
  4. MACt Seal (1L)
    • Premium Benchtop Sealer: Offers robust defence against stains, scratches, and daily wear.
    • Long-Lasting Protection: Keeps your concrete surface looking pristine for years to come.
  5. Technical Support & Guidance
    • Direct Access to MACt Team: Get expert advice on mixing procedures, troubleshooting, and best practices.
    • Reliability You Can Trust: Developed with the demands of the GFRC market in Australia in mind.

What’s Included in the Starter Kit?

  1. 10× MACt GFRC Premix – SF White (20kg each)
    • Silica-free formula promotes safer handling and reduces health risks on the job site.
  2. 1× MACt Seal (1L)
    • Premium benchtop sealer for a protective, durable finish.
  3. 1× MACt Plasticiser (1kg)
    • Ensures flowable, easy-to-pour mixes and streamlined application.
  4. 1× Owens Corning Anti-CRAK 3mm HD Fibres (1kg)
    • Enhances tensile and flexural strength to minimise surface cracking.
  5. 1× NEG AR Fibres 13mm (5kg)
    • Alkali-resistant bundled fibres further reinforce the concrete, increasing longevity.

Ideal Applications

  • New Benchtops & Worksurfaces
  • Kitchen Renovations
  • Bathroom Vanity Tops
  • Outdoor Kitchen & Bar Tops
  • Commercial Counters & Reception Desks

Mixing Instructions & Tips

  1. Safety First
    • Personal Protective Equipment (PPE): Wear a mask, safety glasses, and gloves; work in a well-ventilated area.
    • Prevent Dust Inhalation: Although silica-free, fine powders can still be irritating—handle carefully.
  2. Ingredient Preparation
    • Accurate Weighing: Gather water, premix, fibres, plasticiser, colour (if needed), and any additives in the recommended proportions.
    • Dry-Mix: Combine premix, colour, and plasticiser beforehand to avoid clumping and ensure even dispersion.
  3. Water & Premix Addition
    • 80% First: Pour 80% of the premix blend into the water, mixing thoroughly. Scrape sides and bottom to incorporate all material.
    • Remaining 20%: Add the rest of the premix and continue blending until homogeneous. Adjust consistency only with plasticiser.
  4. Fibre Incorporation
    • Final Step: Add fibres to the fully mixed base; ensure thorough distribution for optimal reinforcement.
    • Avoid Extra Water: Water addition dilutes strength and alters colour, so rely on plasticiser for flowability adjustments.
  5. Example Flowable Mix
    • MACt SF Premix (20 kg): 2.8 - 2.9 L water, 40 g plasticiser, 40 g 3 mm HD fibres, 500 g 13 mm bundled fibres, 15 g MACt Retarder Pro (if needed).

Why Choose the MACt Concrete Benchtop Starter Kit?

  • Complete One-Stop Solution: Contains all the essential products for crafting a robust and beautiful concrete benchtop.
  • Safety First: Silica-free premix reduces health risks, aligning with modern safety standards.
  • Enhanced Durability: Specialty fibres and premium plasticiser produce a strong, crack-resistant finished surface.
  • Professional Results: MACt Seal offers long-lasting protection, ensuring your benchtop remains pristine over time.
  • Unmatched Support: Access MACt’s knowledgeable technical team for guidance throughout your project.
The MACt Concrete Benchtop Starter Kit equips you with everything necessary for a smooth, strong, and stunning concrete benchtop—whether you’re a seasoned pro or a first-time DIYer. From the silica-free premix to premium fibres and a protective sealer, every element is carefully selected for optimal performance and ease of use. Enjoy peace of mind knowing your new benchtop is built to last, and benefit from direct technical support to ensure every step goes seamlessly. With MACt, achieving a professional, long-lasting result has never been simpler.

Additional information

Weight220 kg
Dimensions117 × 65 × 75 cm
Colour

Grey, White

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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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