Our PVCu beads should be set on a continuous line of adhesive mortar, dubbing out where necessary. This allows the PVCu bead to be plumbed completely straight and provides additional rigidity when trowelling on render. Where through-coloured render is used, the PVCu bead will not deflect when trowelling off.
Care should be taken not to deform a traditional External PVCu bead when using mechanical fixings — it should only be necessary when fixing a PVCu bead horizontally to maintain straightness whilst the adhesive mortar goes off to avoid the need of a supporting baton underneath the PVCu bead. Beads can be fixed with stainless steel nails directly on to the substrate as the flexible wing compensates for irregularities in the blockwork whilst the box section keeps the PVCu bead straight and true. And as all our PVCu beads can be used internally and externally, they can be quickly fixed using stainless steel staples as an alternative.
Use a fine-toothed hacksaw and tin snips. PVC Pipe Weld adhesive is recommended to form a strong bond on butt joints.
Store horizontally away from direct hot sun. Whilst Renderplas PVCu beads are packaged in the highest quality fibreboard tubes and double-fluted cardboard boxes, care should be taken to ensure the boxes are kept straight.