SILCOR 560 HB LVOC is a solvent-free, very low VOC, one-part polyurethane waterproofing membrane. It cures to form a flexible, seamless Class III barrier for protected internal and external work.
Use 560 HB LVOC on prepared basement and retaining walls, lift pits, balconies, podiums, planter boxes and internal wet-area floors. The high-build membrane suits vertical and sloping surfaces as well as horizontal areas. It is not self-levelling.
This is a concealed waterproofing membrane, not a finished traffic surface. Protect it from long-term UV exposure, traffic and damage with the specified covering. Some exposed turn-up details use SILCOR Top Coat 75, while bonded finishes require a separate tie coat. For a semi self-levelling membrane on horizontal surfaces, compare SILCOR 575 LB.
Can SILCOR 560 HB LVOC be applied vertically?
Yes. It suits prepared horizontal, vertical and sloping surfaces. It is not self-levelling.
How flexible is SILCOR 560 HB LVOC?
Class III to AS 4858:2004 with more than 1,400% elongation; separately Class III to AS 4654.1:2012 with more than 700% elongation.
When can it be flood tested?
Allow approximately 48 hours at 23°C and 60% relative humidity. Site conditions affect curing.
Can it be left exposed?
No. Protect the membrane from UV. Some specified exposed turn-up details use SILCOR Top Coat 75.
| Property | Value |
|---|---|
| Base Chemistry | High solids polyurethane |
| Specific Gravity | 1.48 ±0.03 g/ml |
| Viscosity Brookfield LV Spindle 4/6 rpm | 60,000 ±10,000 mPa.s |
| Solid Content | 91 ±3 %w/w |
| Tack Free Time | 4 hours |
| Min Recoat Time | 12 hours |
| Max Recoat Time | 48 hours |
| Min Cure Time – Ready for Flood Testing, Topping, Backfilling | 48 hours |
| Shore A Hardness | >55 (ASTM D2240) |
| Tensile Strength | >5.0 MPa (AS 4858); >3.0 MPa (AS 4654.1) |
| Elongation | >1,400% (AS 4858); >700% (AS 4654.1) |
| Tear Strength | > 13.0 N/mm |
| Bond Strength | > 1.5 MPa |
| Crack Bridging | Pass – no fatigue cracking (AS 4858; AS 4654.1) |
| Initial Boiling Point and Boiling Range | >138 °C |
| Flashpoint | >72 °C |
| Density at 20 C | 1.5 g/cm³ |
| Solubility in Water | Not miscible or difficult to mix |
| Viscosity | 60,000 ±10,000 |
| VOC Content | <50 g/L (ASTM D3960) |
| Classification | Class III – AS 4858:2004 and AS 4654.1:2012 |
| Rain Resistant (23°C, 60% RH) | 2 hours |
| Bond Strength to Primed Concrete (AS 4654.1) | >56 N |
| Gel Time (23°C, 60% RH) | 6 hours |
Here are some common examples on where SILCOR® 560 HB LVOC used by our customers.
