Lýsing
- For achieving the optimal joint depth/width ratio, for proper joint dimensioning.
- To prevent three-sided adhesion in dilation joints.
- PU open-cell backer rod foam (polyurethane) is used for non-load-bearing joints.
- PE closed-cell backer rod foam (polyethylene) provides additional support to the sealant and is therefore better suited for joints under mechanical loads or water pressure.
