Drainblock's 100% natural material technology prevents flooding, stores stormwater, treats wastewater and supports urban greening — sustainably and permanently.
From preventing urban flooding to treating wastewater in remote communities — Drainblock's natural material technology works across climates, continents and applications.
Underground natural material reservoirs absorb stormwater instantly, preventing urban flooding during heavy rain while recharging groundwater during dry spells.
Drainblock creates underground water buffers for street trees in paved urban environments — reducing drought mortality and supporting healthy root growth in cities worldwide.
Cleanblock's pre-treated natural material provides exceptional surface area for bacteria colonisation — treating contaminated streams, septic effluent and runoff across Southeast Asia.
Ultra-light, high water-retention Drainblock substrates enable sustainable green roofs and living walls on almost any structure — ideal for architects and landscape designers.
Drainflocks mixed into agricultural soil dramatically improves moisture retention, boosts crop quality and reduces irrigation demand during drought periods.
Our water engineers design complete systems — calculating retention volumes, soil infiltration rates and optimal configurations for any site condition globally.
Cities worldwide are investing in urban canopy to combat heat islands and improve air quality — but street trees in paved environments face severe water stress. Drainblock solves this by creating an invisible underground water reservoir beneath tree pits, rain gardens and road verges.
Water collected from nearby impervious surfaces drains into the Drainblock layer, creating a sustained moisture supply that keeps trees thriving — even through summer drought.
Every Drainblock product starts from 100% natural inorganic materials — engineered into different forms and densities for each application.
The most widely deployed product. Installed vertically in underground reservoirs of any size and shape to manage stormwater under roads, parking areas, parks and sports fields.
| Density | 75–80 kg/m³ |
| Water Retention Capacity | 95% |
| Hydraulic Conductivity | 12 mm/s |
| Direct Load Bearing | 25 kPa |
| Traffic Coverage | 50–70 cm |
| Lifetime | Unlimited |
| Size HD 180 | 1200 × 150 × 1000 mm |
| Size HD 90 | 1200 × 150 × 500 mm |
Higher density variant designed for shallow-cover situations. Maintains excellent water retention with greater load-bearing capacity for challenging installations.
| Density | 120 kg/m³ |
| Water Retention | 92% |
| Hydraulic Conductivity | 6 mm/s |
| Direct Load Bearing | 50 kPa |
| Traffic Coverage | 30–50 cm |
| Lifetime | Unlimited |
| Size Xtrm 90 | 600 × 150 × 1000 mm |
Specifically engineered for green roofs and landscaping. Different fibre structure holds water longer, optimising plant growth. Can be applied to almost any rooftop.
| Density | 120 kg/m³ |
| Water Retention | 92% |
| Hydraulic Conductivity | 6 mm/s |
| Direct Load Bearing | 50 kPa |
| Lifetime | Unlimited |
| Size | 600 × 40 × 1000 mm |
Loose natural mineral fibres mixed directly into soil. Dramatically improves drainage and water holding capacity at root level — ideal for agriculture, tree pits and playing fields.
| Material | Mineral fibres, no binder |
| Application | Mixed with topsoil to root depth |
| Form | Loose flock |
| Lifetime | Unlimited |
| Use | Agriculture, trees, sports turf, gardens |
Mechanical pre-filter placed before the main reservoir. Captures 90% of suspended solids before water enters the storage layer, keeping the main reservoir maintenance-free forever.
| Density | 120 kg/m³ |
| Water Retention | 92% |
| Hydraulic Conductivity | 7 mm/s |
| Suspended Solids Capture | 90% |
| Service Life | ~5 years before renewal |
| Standard Size | 1200 × 40 × 150 mm |
| Custom | Made to order |
Pre-treated natural material cubes with exceptionally high surface area — creating the perfect habitat for bacteria that biologically treat contaminated water. Used across Southeast Asia for stream remediation and wastewater treatment.
| Density | 80–90 kg/m³ |
| Porosity | 98% |
| Treatment Type | Biological (bacterial) |
| Service Life | ~5 years in normal conditions |
| Size | 2 × 2 × 2 cm cubes |
| Applications | Streams, septic, irrigation runoff |
Many communities across Southeast Asia lack centralised sewage infrastructure. Drainblock's Cleanblock system provides an affordable, low-tech biological treatment solution deployable anywhere — from urban canals to rural villages.
The same technology powers our Vertical Vital Urban Filters (VVUF) — a breakthrough green wall biofilter system that simultaneously cleans contaminated water streams and creates thriving living facades. These vertical biofilters use Cleanblock as both growing and filtration medium, allowing bacteria to treat polluted inflows while plants grow directly in the structure.
The result is urban infrastructure that is both functional water treatment and beautiful green architecture — ideal for streams, drainage channels and wastewater outflows in dense Southeast Asian cities.
Learn About Cleanblock & VVUFPolluted stream water, septic tank effluent or agricultural runoff enters the Cleanblock treatment system.
Drainblock Filter removes suspended solids and sediment, protecting the biological stage and minimising maintenance.
Pre-treated Cleanblock cubes provide vast surface area for bacteria that digest organic pollutants. In VVUF systems, plants grow directly in this medium.
Treated water is discharged safely to watercourses or reused for irrigation. The system operates passively — no energy input required.
After ~5 years, Cleanblock cubes are replaced and fully recycled — true circular economy in action.
Drainblock products are made from 100% natural inorganic materials — primarily basalt, the world's most abundant volcanic rock, and natural expanded clay. Basalt is melted at 1500°C and engineered into a high-performance water management medium; expanded clay provides complementary drainage and substrate properties.
The result are materials that are simultaneously ultra-light, incredibly strong, completely fire-safe, frost-resistant and fully recyclable. They cannot rot, corrode, compact or clog — making them ideal permanent underground infrastructure. Both materials are returned to the earth after mechanical upgrading — true circular economy products.
Whether you're an urban planner, a wastewater engineer in Southeast Asia, or a municipality in the Middle East — our team will help design the right system for your site.