RLA Penapatch Panel LW is a lightweight, polymer-modified cementitious repair mortar for non-structural patching of precast and tilt-up concrete. It is specifically designed to cover panel joining plates and rebuild damaged concrete where a high-build mortar is needed without the weight and structural role of HB50 or HB80.
The lightweight aggregate system allows application up to 100mm in a single vertical repair where the technical data permits. Panel LW is shrinkage compensated, can be finished smooth and may be sanded before painting or rendering. The product is also documented as having a four-hour fire rating to AS 1530.4 when installed in the tested configuration.
Remove all weak concrete, contamination and laitance and prepare the surface to provide a sound mechanical key. Existing substrates must be adequately cured. Use the RLA repair-system primer where specified, mix only with the recommended amount of clean water and compact the mortar firmly into the repair.
Compare the range: For structural repairs use HB50 or HB80 as appropriate. See the complete Masonry Repair Mortars and Concrete Repair Mortars ranges.
What is Penapatch Panel LW used for?
Non-structural high-build concrete repairs and covering joining plates in precast and tilt-up construction.
How thick can it be applied?
Up to about 100mm on vertical repairs in one application.
Is it structural?
No. Use an RLA structural repair mortar where load-bearing strength is required.
Does it have a fire rating?
Current RLA product data states a 4-hour fire rating to AS 1530.4 for the specified system.
| Property | Value |
|---|---|
| Density | 900 kg/m³ |
| Shelf Life | 12 months |
| Application Temperature | 5ºC - 35ºC |
| Coverage | 1.85 kg/m²/mm |
| Mixing Ratio | 3.1 - 3.6 litres |
| Yield per bag | 15 litres |
| Flexural Strength 1 day | 3.0 MPa (at 20ºC) |
| Flexural Strength 7 days | 5.0 MPa (at 20ºC) |
| Flexural Strength | 7.1 MPa (at 20ºC) |
| Compressive Strength 1 day | 4.0 MPa (at 20ºC & 50% RH) |
| Compressive Strength 7 days | 18 MPa (at 20ºC & 50% RH) |
| Compressive Strength | 20 MPa (at 20ºC & 50% RH) |
| Initial Setting Time | 3 hours (at 20°C) |
| Final Setting Time | 5 hours (at 20°C) |
| Modulus | approx. 26 GPa |
| Coefficient of Thermal Expansion | 7-10 x 10⁻⁶ mm/ºC |
| Vertical Application Thickness Minimum | 5mm |
| Vertical Application Thickness Maximum | 50mm |
| Overhead Soffits Thickness Minimum | 5mm |
| Overhead Soffits Thickness Maximum | 100mm |
| Fire Performance | 4 hours to AS1530.4 (at 35mm thickness) |
| Wet Density | 900kg/m³ |
Here are some common examples on where RLA Penapatch Panel LW Mortar used by our customers.
