Sazilast (SAZI)
Sazilast 53 — high-strength thiokol joint sealant
Thixotropic polysulfide sealant for joints in concrete, bridges, tunnels and metal roofs; tensile strength at break at least 0.7 MPa.
Price on request
Sazilast (SAZI)
Sazilast 502 — low-modulus pourable polysulfide sealant
The low-modulus pourable Sazilast 502 is designed for moving joints without direct mechanical load: its elongation at break is at least 350%, and its modulus at 100% elongation is not more than 0.4 MPa. This two-component polysulfide compound is used in joints of bridges, tunnels and reinforced concrete structures; it is not used in pedestrian areas. The sealant withstands at least 30,000 cycles and long-term contact with groundwater, oils, fuel, acids and alkalis, but contact with drinking water is not permitted for it.
Specifications
| Manufacturer | Sazilast (SAZI) — OOO “KHIMTEKH-R”, Roshal |
|---|---|
| Type | joint sealants |
| Use | joints and junctions, bridge structures, tunnels and metro |
| Base | two-component pourable low-modulus polysulfide sealant |
| Colour | grey to dark grey |
| Packaging | 15.4 kg kit: sealing paste 14 kg + curing paste 1.4 kg |
| Application method | mix the base paste with the curing paste using a low-speed drill for at least 10 min; in cold weather keep the kit in a warm room for at least a day; do not thin with solvents; apply by spatula only to a dry surface cleaned of dirt, grease, laitance and old sealant; in winter remove ice and frost; brush application is possible |
| Application temperature | recommended range from −15 to +40 °C |
| Curing | curing 48 h at 23 °C; pot life at least 2 h at 23 °C |
| Key properties | nominal tensile strength at break at least 0.7 MPa; elongation at break at least 350% (on joint specimens); modulus at 100% elongation not more than 0.4 MPa; Shore A hardness after 24 h at least 20; water absorption not more than 0.5% by mass; UV ageing at least 1000 h; flow at least 30 mm; fatigue endurance at least 30,000 cycles; service from −60 to +90 °C; resistant to long-term contact with groundwater, oils, fuels, acids, alkalis; contact with drinking water is not permitted |
| Consumption | 320 g/linear m (joint 20 mm wide, 10 mm layer) |
| Shelf life | 6 months at −20…+30 °C in undamaged factory packaging |
| Standards | STO 135-37547621-2016; certificate of conformity (manufacturer OOO “Khimtekh-R”, production — Moscow Region, Roshal) |
Data from the manufacturer’s technical data sheet. The coating system, number of coats and quantity are selected for your project on request.
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Sazilast 51 — two-component thiokol joint sealant
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Sazilast 52 — pourable thiokol sealant for horizontal joints
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Price on request
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Sazilast 25 (grey label) — polyurethane sealant for facade joints
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Price on request