Breathable render for EWI - Baumit OpenContact contact mortar


Baumit OpenContact contact mortar is:-

  • is an easy to use, natural white, breathable, contact mortar.
  • an adhesive mortar for facade insulation.
  • the adhesive coat and base coat for the Baumit Open EWI system.

Where is it used?

  • Baumit OpenContact can be used to bond EPS boards to masonry surfaces and as the base coat for the render system.
  • It can, with Baumit StarTex fibre glass mesh, be used as a base coat for render carriers.

How is it used?

  • Baumit OpenContact comes in 25kg bags and is best mixed, using clean tap water, with a plaster whisk to a smooth lump free consistency.
  • This should be left for 5 minutes and then re-mixed and gives a working time of around 1.5 hours.
  • OpenContact can also be spray applied with a continuous mixer. 

How much will you need?

  • Each bag of Baumit OpenContact will cover up to 5.4m2 at 3mm or when used as an adhesive and base coat each bag will cover up to 1.7m2. 

This product can be bought by the 25kg bag or by the pallet of 42 bags (15% discount on bag price).



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