LEVL Concrete Strong 12 — lithium silicate impregnation for concrete floors
Hardening and dustproofing lithium silicate impregnation with 11 % non-volatile content for concrete, topping and polished floors.

LEVL Coat 108 primer contains mineral filler, so it creates a textured surface without a sand broadcast. It is used under all LEVL epoxy and polyurethane floors, applied with a velour roller, flat trowel or brush in two or more coats. Mixed with quartz sand, the compound serves as a filler for unevenness, potholes and cracks. Adhesion to concrete is at least 2.5 MPa, substrate moisture up to 5 %, service from −10 to +60 °C, short-term up to +90 °C.
| Manufacturer | LEVL (INGRI) — OOO “Ingri”, Saint Petersburg |
|---|---|
| Type | floor primers |
| Base | bisphenol A epoxy resin with mineral filler + amine hardener; small amounts of organic solvent |
| Colour | “wet concrete” look (colour of the substrate); as a filler compound: grey to beige |
| Packaging | kits of 1 kg, 10 kg, 25 kg (A and B in two containers); A : B = 3.76 : 1 (by weight) |
| Application method | filled universal primer under all LEVL epoxy and polyurethane floors (velour roller, flat trowel, brush; 2 or more coats; textured surface without a sand broadcast); filler compound with quartz sand for unevenness, potholes and cracks |
| Application temperature | air and substrate +10…+30 °C (recommended +10…+25 °C); material +15…+30 °C (recommended +17…+23 °C); air humidity no more than 80 %; substrate moisture no more than 5.0 % by weight; 3 °C above the dew point |
| Curing | light loads: +10 °C ~1 day, +20 °C ~12 h, +30 °C ~6 h; foot traffic ~5 / ~3 / ~2 days; full strength gain ~10 / ~7 / ~4 days; next coat after 12–48 h at +20 °C |
| Key properties | Adhesion to concrete at least 2.5 MPa; density (A+B) 1.41 ± 0.05 g/cm³; non-volatile content at least 95 %; viscosity of A+B at 23 °C 1200–1500 mPa·s; pot life +10 °C ~50 min, +20 °C ~30 min, +30 °C ~15 min; service temperature from −10 °C to +60 °C (short-term up to +90 °C) |
| Consumption | 0.1–0.25 kg/m² per coat (2 coats recommended; at an application rate of 100–250 g/m²); priming of a cementitious substrate 0.30 kg/m²; filling 0.5 kg/m² + quartz sand 0.1–0.3 mm 0.8 kg/m² |
| Shelf life | 12 months from the date of manufacture; storage at +5…+25 °C |
| Standards | TU 2312-001-94613022-06 with Amendment No. 1; not subject to mandatory fire safety certification (Decision No. 396-RZ/19 of 26.07.2019, No. 123-FZ); test methods GOST 31992.1, GOST 31939, GOST 25271, GOST 28574 |
Data from the manufacturer’s technical data sheet. The coating system, number of coats and quantity are selected for your project on request.
Hardening and dustproofing lithium silicate impregnation with 11 % non-volatile content for concrete, topping and polished floors.
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