- Hong Kong SAR
Sikalastic®-821 LV
Application area | : | Roof | Indoor | Outdoor |
Type | : | Waterproofing membrane |
Material | : | polyurethane |
Colour | : | Grey | Approx RAL 7005 |
Usage | : | As a waterproofing membrane underneath asphalt on concrete bridge decks | concrete structures and non-trafficked concrete areas with an additional top coat for UV protection | For car parks |
Shelf Life | : | Part A: 12 month | Part B: 9 month |
Storage Conditions | : | Protect from direct sun light and frost |
Chemical Base | : | 2-part polyurethane |
Packaging | : | Part A: 209 kg drum | Part B: 211 kg drum |
Applicator | : | Spray |
Excellent Crack Bridging Properties | : | Yes |
Highly Elastic Waterproofing Membrane | : | Yes |
Contains No Fillers | : | Yes |
Fast Curing (Application With Plural Spray Equipment Only) | : | Yes |
Density | : | Part A: ~1.04 kg/ litre | Part B: ~1.04 kg/ litre | Mixed resin: ~1.04 kg/ litre (DIN EN ISO 2811-1) |
Solid Content | : | ≥ 99 % |
Viscosity | : | Part A: 3900 mPa·s | Part B: 5900 mPa·s |
Shore A Hardness | : | ~72 |
Tensile Strength | : | ~8 N/ mm² (DIN 53504) |
Tensile Adhesion Strength | : | ≥ 1.5 N/ mm² |
Crack Bridging Ability | : | Dynamic crack-bridging properties ≤ 0.3 mm at -20 °C | Static crack-bridging properties ≤ 1.0 mm |
Chemical Resistance | : | Resistant to De-icing salts | Bitumen | Alkalis |
Thermal Resistance | : | Short term resistant to mastic asphalt up to +240 °C |
Mixing Ratio | : | Part A : Part B = 1 : 1 by volume |
Layer Thickness | : | Minimum 2 mm |
Ambient Air Temperature | : | +8 °C minimum/ +45 °C maximum |
Relative Air Humidity | : | ≤ 85 % |
Dew Point | : | Must be at least 3 °C above dew point to reduce the risk of condensation or blooming of the membrane finish |
Substrate Temperature | : | +8 °C minimum/ +45 °C maximum |
Substrate Moisture Content | : | ≤ 4 % according CM method |
Gel Time | : | 20 to 25 seconds |
Certification | : | ISO 14001 SGS | ISO 9001 SGS |