
LRS RapidRoof Multi-Purpose Filler
The LRS RapidRoof Multi-Purpose Filler Kit is a fast-curing, two-part filler designed to prepare flat roof surfaces for the RapidRoof liquid waterproofing system. It is ideal for filling uneven areas, large gaps and cracks, helping to eliminate low spots where water can collect and cause ponding.
The pourable formulation is easy to apply and cures in as little as 20 minutes, allowing roof preparation to be completed quickly before the waterproofing system is installed. It can be used on a wide range of common roofing substrates, including OSB3, roofing boards, existing felt, asphalt, concrete, metal and fibreglass.
The 17kg kit provides an average coverage of approximately 0.85m² at a 10mm application thickness. It is also suitable for use with standard GRP trims, making it a versatile solution for preparing and repairing flat roof surfaces.
The LRS RapidRoof Multi-Purpose Filler Kit is supplied with a 10-year manufacturer's product guarantee, while approved contractors may be eligible for an extended 20-year guarantee.
Key Features
- Fast curing – ready in approximately 20 minutes.
- Two-part, pourable formulation for straightforward application.
- Fills uneven areas, large gaps and cracks.
- Helps eliminate areas prone to water ponding.
- Suitable for OSB3, roofing boards, felt, asphalt, concrete, metal and fibreglass.
- Ideal for preparing surfaces before applying liquid roofing systems.
- Suitable for use with standard GRP trims.
- 17kg pack covers approximately 0.85m² at 10mm thickness.
- 10-year manufacturer's guarantee, with a 20-year guarantee available to approved contractors.
Application
Remove all laitance, grease, oil, dust and other contaminants to provide a sound, clean substrate.
PRIMING:
The prepared concrete surface should be primed by the application of LRS RapidRoof Primer. The mixed LRS RapidRoof Primer should be applied by brush or roller at a nominal rate of 1kg per 3-4m², depending upon surface profile. Allow the primer to cure for a minimum of 60 minutes.
MIXING:
LRS RapidRoof Multi-Purpose Filler is supplied as a two component product consisting of the BASE component, and the FILLER/CATALYST component. The contents of the BASE and FILLER/CATALYST component should be thoroughly mixed together for 1-2 minutes, until a uniform consistency is achieved. Mix using a low speed drill stirrer.
APPLICATION:
LRS RapidRoof Multi-Purpose Filler should be poured onto the primed floor and trowel finished. The material should not be feather edged.
CURING:
Allow a minimum cure time of 1 hour @ 20°C prior to foot trafficking and 2 hours @ 20ºprior to full trafficking. The cured product requires priming with LRS RapidRoof Primer prior to the application of any other LRS system.
If using with a PU the should be cured a minimum of 12hrs before overcoating.
| Components: | Two Pack |
| Type: | Filler |
| Finish: | N/A |
| Stock Colours: | Light Grey |
| Tintable: | No |
| VOC Content: | |
| Volume Solids: | 30% |
| Suitable Substrates: | Concrete, Minderal Felt, Asphalt, OSB3, Metal, Fibreglass, GRP, Single Ply |
| Application Method: | Trowel |
| Theoretical Coverage: | A 17kg pack yields 0.85m² @10mm thickness. |
| Wet Film Thickness (WFT): | |
| Dry Film Thickness (DFT): | 1.5mm - 2mm |
| Induction Time: | - |
| Pot Life: | 20 minutes at 20°C |
| Foot Traffic Ready: | 1 hour at 20°C |
| Heavy Traffic Ready: | 2 hours at 20°C |
| Fully Cured: | |
| Cleaner / Thinner: | N/A |
| Shelf Life: | 6 months unopened |
| Packaging: | Available in 17 Kg |

