Basilisk Healing Agent
With Basilisk Healing Agent, any concrete mix can easily be converted to a concrete with self-healing properties. It is a bio-based granular additive that repairs cracks in concrete and makes it waterproof, autonomously filling crack widths up to 1 mm with limestone.
Self-healing concrete works with limestone-producing micro-organisms — a proven technology validated across Europe and Japan.
All Benefits of Basilisk Healing Agent
Watertight Concrete
Self-healing concrete seals cracks, saving costs for special coatings or waterproof membranes. No additional costs for injection works to repair cracks before project delivery.
40% Less Shrinkage Reinforcement
Due to self-healing properties, larger crack widths can be accepted in design. Approximately 40% less shrinkage reinforcement is required, also minimizing the risk of rock pockets.
30–50% CO₂ Footprint Reduction
Self-healing concrete with longer design life, without membranes and with less shrinkage reinforcement, results in significant savings on the CO₂ footprint.
Less Maintenance & Shorter Downtime
Concrete structures with Basilisk Healing Agent require less maintenance and shorter downtime. Specifically suitable for structures where crack formation adds to maintenance requirements.
Extends Service Life
Adding self-healing properties to concrete increases quality and durability performance, resulting in lower Life Cycle Costs. Basilisk claims 40–50% less maintenance over the structure's lifespan.
Autonomous Repair System
Concrete with Basilisk Healing Agent can repair its own cracks without any human interaction. Heals cracks up to 1 mm crack-width (depends on dosage).
Applications & Opportunities
Basilisk Healing Agent is ideal for structures where crack sealing, waterproofing, and long-term durability are critical.
How to Apply — Basilisk Healing Agent
Watch the application process and review the step-by-step workflow your crew will follow on site. Switch tabs to compare all three Basilisk products.
Bio-based admixture batched into ready-mix concrete that autonomously seals cracks up to 1 mm with limestone.
Basilisk Healing Agent — Step by Step
- 1Dose 1–4% of cement clinker (4–7.5 kg/m³) at the batch plant
- 2Mix, place, and finish concrete using standard procedures
- 3Bacteria stay dormant until water enters a crack
- 4Limestone precipitates to seal the crack autonomously — repeatable over the structure's life
Straight from Basilisk
With Basilisk Healing Agent, any concrete mix can easily be converted to a concrete with self-healing properties. Basilisk Healing Agent is a bio-based granular additive that repairs cracks in concrete and makes it waterproof. It autonomously fills crack widths up to 1 mm with limestone. Self-healing concrete works with limestone-producing micro-organisms — a proven technology validated across Europe and Japan. The Healing Agent is added to the concrete mix at the batch plant and remains dormant until water enters a crack, at which point the bacteria activate and precipitate limestone to seal the crack from within.
Source: basiliskconcrete.com
When to Specify Basilisk Healing Agent
Use this guide to match the right product to your structure, exposure, and crack profile.
Best fit when
- •New pours where long-term watertightness is critical
- •Below-grade and water-retaining structures
- •Designs that want to reduce shrinkage reinforcement (up to 40%)
- •Projects pursuing lower lifecycle CO₂ and reduced maintenance
- •Owners targeting 40–50% maintenance reduction over service life
Consider another product when
- •Existing cracked structures — specify MR3 (patch) or ER7 (liquid) instead
- •Pure architectural overlays with no structural / waterproofing requirement
- •Mixes that cannot accommodate a 1–4% cement-clinker dosage
Situation-by-Situation Recommendations
Water-retaining tanks & reservoirs
Specify Healing Agent in the mix design to eliminate the need for separate waterproof membranes and reduce risk of leakage at shrinkage cracks up to 1 mm.
Tunnels, basements & diaphragm walls
Use Healing Agent to autonomously seal hairline cracks that develop from hydrostatic pressure, reducing injection repairs and protecting embedded rebar.
Marine, harbors & airports
Add to the mix to defend against chloride ingress and freeze/thaw cracking — the limestone seal protects reinforcement against accelerated corrosion.
Parking decks & industrial floors
Ideal where deck cracks would otherwise require routine sealing. The admixture lets you accept slightly larger design crack widths and cut shrinkage rebar.
Bridges & transportation infrastructure
Spec Healing Agent for long-life decks and substructures where downtime for repair is costly. Pair with normal SCM mixes to lower embodied carbon.
Wastewater & treatment plants
Use to maintain watertightness in aggressive environments — sealed cracks limit infiltration/exfiltration and extend tank service life.
Proven Performance & Service Life
Honest, data-backed claims — here's what the published research and product documentation support.
Self-healing concrete can require 40–50% less maintenance over the structure's lifespan, reducing total cost of ownership.
Cracks up to 1 mm are sealed autonomously with limestone, making the concrete waterproof without human intervention.
Basilisk claims extended service life through crack sealing and waterproofing. No specific years-added figure is published for new pours — the benefit is realized through reduced maintenance and ongoing protection.
Technical Details
Reduction of Shrinkage Reinforcement
For watertight structures, the maximum allowed crack-width is determined by water tightness requirements. When adding Basilisk Healing Agent to the concrete mixture, these requirements are already handled, reducing the need for shrinkage rebar up to 40%.
Protection Against Leakage & Corrosion
The environmentally friendly bacteria autonomously seal cracks with limestone up to 1 mm in width. Due to the compatibility of limestone and concrete, the structure is continuously protected against leakage. Crack-healing protects reinforcement against corrosion.
Tailor-Made Solutions
Technical support is available for a custom design of your own self-healing concrete mix or special (spray) mortar, configured according to your project requirements.
Key Specifications
| Type | Bio-based granular admixture |
| Crack Healing Width | Up to 1.0 mm |
| Dosage | 1–4% of cement clinker (4–7.5 kg/m³) |
| Packaging | 2.5 kg (on demand) / 25 kg bags |
| Shelf Life | 1 year from production date |
| Storage | Dry, ventilated, below 40°C |
| Reinforcement Savings | Up to 40% shrinkage rebar |
| CO₂ Reduction | 30–50% |
| Healing Mechanism | Limestone-producing bacteria |
| Certifications | CE certified, KIWA |
Download Technical Documentation
Access the full product data sheet, brochure, safety data, and application instructions from Basilisk.
Manufactured by Basilisk Self-Healing Concrete · Distributed by Stonix
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