MACt Concrete Retarder Pro (5KG)
Price range: $192.50 through $495.00 Inc GST
Ready within 2 hours
Ready within 2 hours
Ready within 2 hours
| Attribute | Detail |
|---|---|
| Product Form | Powder |
| Dosage | 0.03g per 1kg of cement (for 30-min delay) |
| Effectiveness on Air Reducers | Enhances by up to 18% |
| Shelf Life | Up to 1 year (store in cool, dry place away from direct sunlight) |
| Application | Add during concrete mixing; timing is flexible |
| Storage Recommendations | Original packaging, cool & well-ventilated area |
| Bag | 1 Bag (20KG), 5KG |
|---|
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.
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:
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:
*NOTE: All admixes will alter the way the mix behaves.
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