SIKA · AUTHORIZED PROJECT DISTRIBUTOR · SPACE ARC ENGINEERING
Sika® Sigunit® L-93 AF (I)
Highly effective alkali-free liquid accelerator for durable sprayed concrete
Product Overview
Sika® Sigunit® L-93 AF (I) is a highly effective alkali-free liquid accelerator for shotcrete, suitable for both dry and wet spray applications. Made from a mixture of special organic substances, it is non-caustic and non-toxic and produces high-quality sprayed concrete with good long-term strength and durability. The product reduces rebound and dust, improves adhesion on rock, concrete and overhead surfaces and, when correctly dosed, causes only minimal strength loss. Its chloride-free chemistry protects reinforcement from corrosion. It is used for rock securing in tunnels, rock and slope stabilisation and general construction shotcrete, serving tunnelling, mining and ground-support contractors who need durable linings. Space Arc Engineering supplies Sika® Sigunit® L-93 AF (I) in India as an authorized distributor, with on-site technical support for your spraying programme.
Features & Benefits
- Alkali-free, non-caustic and non-toxic for safer site handling
- Supports good long-term strength and durability of the shotcrete
- Reduces both rebound and dust during spraying
- Improves adhesion on rock, concrete and overhead surfaces
- Chloride-free formula protects steel reinforcement
- Compatible with both dry and wet spray shotcrete processes
Technical Highlights
| Coverage | Dosage is 3–10% by weight of cementitious content, with the optimum fixed by site trials. |
| Strength | Supports good long-term strength with minimal loss when correctly dosed; refer to TDS for values. |
| Performance | Reduces rebound and dust and improves adhesion; pH is 1.5–3.5 at 25°C. |
| Application Conditions | Store between 5°C and 35°C in dry conditions, protected from sunlight and frost; shelf life is 6 months from production. |
| Packaging | Supplied in 300 kg HDPE drums. |
Applications
- Rock securing and primary support in tunnel construction
- Rock and slope stabilisation on infrastructure works
- Durable structural shotcrete for general construction
- Permanent sprayed-concrete linings in mining and ground engineering
- Overhead and vertical spraying requiring rapid set and adhesion
SPACE ARC ENGINEERING · AUTHORIZED DISTRIBUTOR
Product image & sample available on request
Technical Data
| Product type | Alkali-free liquid shotcrete accelerator |
| Chemical base | Mixture of special organic substances |
| Appearance | Beige-white suspension-type liquid |
| Density | approx. 1.46 kg/L at 25°C |
| Dosage | 3–10% by weight of cementitious content |
| Standards | ASTM C 1141 Type I, II Grade 9 Class A |
Datasheet & Documents
Request the Technical Data Sheet, method statement and safety data sheet from Space Arc Engineering.
Request Quote / Availability
+91 9999155255
+91 7290089007
info@space-arc.com
Frequently Asked Questions
What is Sika Sigunit L-93 AF (I) used for?
It is a highly effective alkali-free liquid accelerator for dry and wet shotcrete. It is used for rock securing in tunnels, slope and rock stabilisation and durable sprayed concrete on general construction.
What is the dosage of Sika Sigunit L-93 AF (I)?
The dosage range is 3–10% by weight of cementitious content. The optimum should be confirmed by site trials with your specific mix; refer to the TDS.
Is Sika Sigunit L-93 AF (I) safe to handle?
It is alkali-free, non-caustic and non-toxic, which makes it safer to handle than conventional alkaline accelerators. It is also chloride-free and does not corrode reinforcement.
What is the difference between Sigunit L-93 AF (I) and L-54 AF?
Both are alkali-free liquid accelerators based on special organic substances. L-93 AF (I) has a slightly higher density (about 1.46 kg/L) and is positioned for good long-term strength and durability. Confirm selection against project requirements and the TDS.
Who supplies Sika Sigunit L-93 AF (I) in India?
Space Arc Engineering is an authorized Sika distributor supplying Sigunit L-93 AF (I) across India. Contact +91 9999155255 or info@space-arc.com for pricing and technical support.
Related Products
- Sika® Sigunit® L-54 AF — Alkali-free liquid accelerator for very rapid set and large rebound reduction.
- Sika® Sigunit® L — Modified-silicate liquid accelerator and rebound reducer for wet shotcrete.
- Sika® Sigunit® Powder K — Powder set accelerator for the dry shotcrete process.
- Sika® ViscoCrete®-2002 HE — High-performance superplasticizer for the shotcrete base mix.
Buy Sika® Sigunit® L-93 AF (I) — Sika Distributor in India
Space Arc Engineering is an Authorized Project Distributor supplying Sika products for infrastructure, industrial, commercial and residential projects across India.
+91 9999155255 | +91 7290089007 | info@space-arc.com