WBS Dry Dash Finish

Manufacturer guidance

Dashing aggregates are available in a number of standard colours and sizes. Special colours may be available on request.

Manufacturer guidance

• A wide range of beads, trims and fixings are available to compliment this render system which allows precise detailing to be achieved. Please contact Wetherby Technical Support for further information.
• High quality sealants, tapes and mastics also available.

Manufacturer guidance

• Brush down substrate to remove any friable material, algae or lichen. Any ridges or protrusions should be removed and hollows filled to provide a smooth surface.
• Apply fungicidal wash if required to remove all algae / fungus from the substrate.
• Apply stabilising solution if required to help improve adhesion and offer uniform suction.
• Attach base rails and the relevant surface profiles.
• Apply the WBS Basecoat to an even thickness of 4-6 mm.
• Bed the Alkali Resistant Mineral Fibre Mesh into the top third of the basecoat, overlapped by 75 mm. Mesh to be kept taught and fixed from top downwards. No laps within 150 mm of any reveal or corner. Ensure mesh is covered by the basecoat.
• Bed 200 x 200 mm off-cuts of mesh positioned at 45º to window opening corners.
• Apply the remaining surface render beads.
• Lightly scratch the basecoat surface when hardened with a scratch comb to provide a key for finishing coat.
• Allow basecoat to fully dry.
• Apply the dash receiver at a thickness of 8-10 mm, ensuring that it is finished proud of all profiles.
• A darby or straight edged tool may be used to ensure a relatively uniform thickness which can be smoothed out using a plastic float.
• Complete individual surfaces in one operation where practical. Where this is not possible, work joints are to be agreed with the Architect.
• Apply WBS Aggregate by evenly throwing onto the render in an upwards motion whilst it is still wet to give a uniform finish.