- KLB PU420 screed with polypropylene sheet mesh reinforcing forms a flexible crack bridging system that forms a barrier to the flow of radon gas
- The 5mm screed is laid on an EP52 anti damp penetrating primer
- A levelling EP50 pigmented screed is then laid at 2mm, followed by a 3mm PU420 screed
- For full ultra violet resistance the final screed may be changed to PU410
- The system carries our five year warranty on both material and application