KrunerRoc
Cement-free concrete
KrunerRoc is a cement-free, concrete-like construction grade material that outperforms cement concrete with high workability.
Formed with KrunerBinder and virtually any sand type, including desert sand, and aggregates. It does not require slag, fly ash or resin.
For precast, ready-mix, and light-weight concrete.
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High compressive strength
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Up to 100 MPa
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Fast & easy curing
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>90% strength in 7 days
Standard OPC: 65% strength in 7 days
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Exceptional workability
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Exceptional thermal conductivity
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0.777 W/mK
Standard OPC: 1.4 W/mK–3.6 W/mK
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Lower weight density than concrete
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5% to 10% lighter depending on mix ratio
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Superior resistance
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Against fire, heat, frost, acid, salt, corrosion, algae
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Water- and shrinkage-proof
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Smooth, refined finishing
KrunerBinder offers unmatched versatility, sustainability, and scalability to lead the global shift to net-zero construction.
Through extensive R&D, we have developed five primary materials with KrunerBinder.
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KrunerRoc
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KrunerStone
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KrunerClay
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KrunerInso
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KrunerWood
These are adapted for seamless applications across multiple key building product industries.
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Cement-free concrete
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Resin-free Engineered stone
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Resin-, acrylic-free sanitaryware
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Kiln-free brick
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Resin-free OSB board
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Harm-free insulation
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OPC replacement in ready-mix cement
KrunerStone
Mouldable designer stone
KrunerStone is a wetcast sandstone formed with KrunerBinder and virtually any sand type, including desert sand. 100% natural material, non-harmful, slag-, fly ash- and resin-free.
For counter top, tile, wall cladding and sanitaryware.
Non-resin alternative to engineered stone* and non-acrylic alternative to sanitaryware. Unlike ceramics, KrunerStone does not require kiln-firing for curing.
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High compressive strength
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Mouldable, fast & easy curing
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Exceptional durability
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Against abrasion and water penetration
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Superior resistance
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Against fire, heat, frost, acid, salt, corrosion, algae
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Water- and shrinkage-proof
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Exact, smooth, refined finishing
* Engineered stone has been banned in Australia since July 2024 due to rising cases of silicosis caused by the inhalation of silica dust. Similar bans are under consideration in more countries.
KrunerClay
Stronger clay without kiln-firing
KrunerClay is formed by KrunerBinder binding with clay. It can be casted or extruded to produce clay construction components. Ambient curing without kiln-firing and 3X stronger than conventional fired clay.
For brick work construction.
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High compressive strength
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30 MPa to 40 MPa
Fired-clay: 7 MPa–14 MPa
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Fast & easy curing
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16 hours at 25°C / rH>90% or ambient curing
Fired-clay: 50 hours; firing (930°C–1,300°C), plus drying & cooling
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Superior resistance
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Against fire, heat, frost, acid, salt, corrosion, algae
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Water- and shrinkage-proof
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Smooth, luxurious finishing
KrunerInso
Safe, harm-free insulation
KrunerInso is a low-carbon insulation engineered with KrunerBinder and air. It is a harm-free, natural, mineral-based insulation alternative to the commonly used EPS foam* and Rockwool*. It is safe to use in living environments and direct human contact.
Designed for use to fill precast walls and hollow bricks, and as insulation sheets and blocks.
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100% natural, harm-free & non-toxic
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Suitable for direct human contact
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Class A insulation
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Lightweight
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Superior resistance
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Against fire, heat, frost, acid, salt, corrosion, algae
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* Petroleum-based EPS foam (expanded polystyrene) is highly flammable and non-biodegradable. It is especially hazardous when discarded. Styrene is a known carcinogen and polyurethane uses substances known to cause chronic illnesses including cancer. Production and usage emit high amounts of greenhouse gases like hydroflourocarbons (HFCs).
* Rockwool is formed by spinning melted rock minerals into fine fibres, including slag, a radioactive heavy metal industrial byproduct. The energy-intensive process reaches temperature of 1,600°C. Rockwool contains loose airborne microfibres which irritate eyes, skin and lungs. It is not suitable for direct human contact surfaces.
KrunerWood
Resin-free wood strand board
KrunerWood is formed with KrunerBinder binding wood flakes together without resin.
It is a safer, more sustainable, resin-free alternative to the common Oriented Strand Board (OSB).
OSB's resin chemical makeup and the toxic fumes it emits while curing is both a health and fire hazard.
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Safe, harm-free & non-toxic
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High durability and strength
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Resistance against water, fire, corrosion and algae
