From £15.83 + VAT per bag

White base coat render – Baumit StarContact White

Baumit StarContact White contact mortar is:-

  • an easy to use, natural white, breathable contact mortar.
  • a bonding mortar for facade and perimeter insulation.
  • the adhesive coat and base coat for the Baumit range of EWI systems.
  • a base coat for render carriers.

Product overview

Where is it used?

  • Baumit StarContact White can be used to bond insulation boards to masonry surfaces and as the base coat for the render systems.
  • Baumit StarContact White can be used to prepare coarse grained mineral and synthetic renders to receive a fine finish render.
  • It can, with Baumit StarTex fibre glass mesh, be used as a base coat on render carrier boards.

How is it used?

  • Baumit StarContact White comes in 25kg bags and is best mixed, using clean tap water, with a plaster whisk to a smooth lump free consistency or it can be spray applied.
  • It’s ‘sticky’ nature means it is very easy to apply to a whole range of backgrounds.
  • As an adhesive apply as either a perimeter and three dabs through the centre or as an even 3mm coat to the back of the EPS insulation boards.
  • As a base coat or meshed coat, apply evenly with a steel trowel, making sure temperatures are above 5°C and out of strong sunlight.
  • Comb the surface with a notched trowel to ensure the correct thickness of plaster has been applied.
  • Whilst still wet, lay in the Baumit StarTex mesh and trowel until the mesh has disappeared.
  • Trowel to a smooth finish with a steel float or spatula.

How much will you need?

Baumit StarContact has a density of 1.35kg per mm per m² (1mm thickness of plaster over 1m²). Each 25kg bag of Baumit StarContact White will cover up to 3.5m² as a base coat at 5mm thickness.

Frequently asked questions

How long does it take to set?

Setting times vary with temperature and humidity but in the summer the product will usually stiffen enough to finish in a few hours and set hard overnight. In winter stiffening may be extended to more than one day with hardening more than two days.

Pricing & shipping

This product will require one pallet space and so shipping is likely to cost between £50 and £100, depending on where you live. Contact Us for a more accurate costing.

Bag weight (kg) Coverage [m²]Single bag costFull pallet bag cost

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