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Application

Suitable for use on both render only projects and as a final maintenance-free finish for the WBS range of external wall insulation systems, such as silicone & mineral renders, brick effect render, or the brick slip cladding system.

Description

A range of traditional renders and complimentary dashing aggregates.


Features and benefits:

  • WBS Dry Dash Finish (also referred to as pebble dash) gives a fresh, hard-wearing, waterproof finish.
  • It is suitable for use on both render only projects and as a final maintenance-free finish for the WBS range of external wall insulation systems, such as silicone & mineral renders, brick effect render, or the brick slip cladding system.
  • The final aesthetic appearance of any dash project can vary enormously depending on the colour of the dashing mortar, chosen in conjunction with a complimentary or contrasting aggregate.
  • Depending on the type of application required, WBS offer a range of four different dashing mortars to suit a variety of substrates.

General information

Color

Manufacturer guidance

Special colours may be available on request


Finish

Dry dash

Material

Cementitious

Fibre-reinforced

Polymer-modified cement

Shape

Other

Length

Bespoke

Width

Bespoke

Height

Bespoke

Warranty description

Ten year

Uniclass

Ss_25_45_70_55 Multicoat render systemsPrimary

CAWS

M20/160 Proprietary cement gauged render

M20/19 Proprietary cement gauged render

M21/20 External wall insulation system . . . . . .

M21/210 External wall insulation system

Product range

Polymer Modified Renders

Specification data - Multicoat render systems

Execution

Install system as per manufacturer’s instructions.

Basecoat

WBS Basecoat UF.

WBS Scrim Adhesive.

Reinforcement

WBS Alkali Resistant Scrim Cloth incorporated into WBS Scrim Adhesive

Aggregate

Ashton Cream.

Barleycorn.

Beige Marble.

Black and White.

Brampton Dash.

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Manufacturer guidance

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


Accessories

WBS Aluminium beads, trims and profiles.

WBS Plastic beads, trims and profiles.

WBS Polyester coated galvanized steel beads, trims and profiles.

WBS Stainless steel beads, trims and profiles.

WBS Low Modulus Silicone Sealant.

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.

Packaged weight

Render: Dry powder product supplied in 25 kg bags.

Aggregate: Dashing grade aggregate, supplied in 25 kg bags.

Application method

-

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.


Sustainability data

Contains Red List materials

No

Country of material origin

United Kingdom

Country of product manufacture

United Kingdom

Literature

Through Coloured Renders / Spar Dash Systems

Through Coloured Renders / Spar Dash Systems