To discuss your project give us a call on 01392 861763 or send us a message here.

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.

Prices: from £15.59 + VAT per bag

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.

Prices: from £15.59 + VAT per bag

“A robust and durable but very breathable render for the Baumit OpenSystem” – Chris Brookman

 

Product overview.

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 much will you need?

  • Baumit OpenContact has a density of 1.35kg per mm per m² (1mm thickness of plaster over 1m²). Each 25kg bag will cover up to 4m² at 4-5mm thickness as a base coat and 5m² at 3-4mm thickness as an adhesive coat.

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. 
Technical Details

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.

 Baumit EWI Systems Installation Guide

Product overview.

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?

  • Baumit OpenContact has a density of 1.35kg per mm per m² (1mm thickness of plaster over 1m²). Each 25kg bag will cover up to 4m² at 4-5mm thickness as a base coat and 5m² at 3-4mm thickness as an adhesive coat.

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.

Material in action.

Baumit OpenContact is the main adhesive and render for the Baumit OpenSystem which is the only vapour open, or breathable, polystyrene (EPS) insulation system on the market. This makes it much more widely useable on both modern and older buildings than normal EPS as any moisture in the walls of the building can slowly pass through the insulation system.

If you’d like to discuss whether this system would be suitable for you, please contact us.

Prices & Shipping

Here you will find pricing and shipping estimates. To get a fixed quote, please call our technical team on 01392 861763 or get in touch via the form below.

Baumit OpenContact costs £15.59 + VAT per 25kg bag with a 10% discount on full pallets of 42 bags.

Carriage is typically calculated at £65 + VAT per pallet and all orders of more than one bag will be sent on a pallet. This price does vary if delivery is required to remote locations. If you require only a few bags we may be able to get slightly cheaper shipping so please contact us for a more accurate price.

 

Request an estimate.

In summary, if you are looking for more than just a builders’ merchant, we might be the guys to talk to.

Request an estimate.

In summary, if you are looking for more than just a builders’ merchant, we might be the guys to talk to.

Customers also bought…

No Results Found

The page you requested could not be found. Try refining your search, or use the navigation above to locate the post.

CPD Training

We offer CPD training for architects practices across Devon and Cornwall.

Software Modelling

We offer CPD training for architects practices across Devon and Cornwall.

Building Plan Review

We offer CPD training for architects practices across Devon and Cornwall.

Overview

Back to Earth is a natural building material supplier. We're not your typical builders'​ merchant though and instead work closely with our clients during the planning, designing and building phases of projects.

Legal

Terms and conditions
Privacy & cookies policy
Data protection policy
Delivery information
Returns and exchanges

© 2018 Back to Earth

© 2018 Back to Earth

0/5 (0 Reviews)