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  • Secil Eco Cork Insulating Render

Secil - Eco Cork Insulating Render - 14kg

£12.00  Price includes VAT

Product Code: LCORK14

Product Description

Secil EcoCork is a lightweight render, with increased acoustic and thermal insulating properties. EcoCork is manufactured using natural cork, sand and Natural Hydraulic Lime (NHL).

Secil EcoCork is the middle layer of a 3 coat system and must be used in conjunction with a bonding/base coat and a protective finishing Coat. The system is suitable for both internal and external applications and can be applied to stone, brick, block, cob/clom and strawbale.

The 3 coat system includes

Benefits include:
  • Natural product
  • Environmentally Friendly
  • Vapour Permeable
  • Lightweight
  • Increased Thermal and Acoustic insulation properties
  • Easy to mix just add water.

Surface Preparation

Ensure the surface is free from dust, loose or unstable matter, efflorescence, grease and releasing agents. In hot or dry weather soak the substrate, waiting for the surface to dry sufficiently before applying the base coat of Secil consilidation mortar.

Mortar Preparation - Ecocork

Combine the dry-mix powder with at a ratio of 6.5 - 7.0 litres of water per 14kg bag and mix using a mechanical mixer. As with many lime based products, Secil EcoCork Mortar will become more workable if mixed for a longer period of time (thixotropic). For this reason it is advisable not to exceed the recommended amount of water unless absolutely necessary.


Apply a ‘hand-harled’ coat of the Consolidation Mortar (consolidação) to the surface to create a rough cast finish. Allow a couple of days to dry then apply a 10-20mm coat of EcoCork. To reduce the possibility of cracking, especially where different materials or substrates are bridged, a 4mm fibreglass mesh can be included in this coat. If a greater thickness is required, scratch finish the first coat of EcoCork and apply a second 10 -15mm coat approx. 5-7 days later. Float after a few hours to prepare surface for the finishing coat

After a minimum of 7 days apply the Secil Finishing Plaster (Acabamento)

For an even finer finish on internal walls, an extra coat of traditional fine lime plaster can be used.


When mixed with water 14 kg bag will make up 20 litres of mortar. Coverage is approx. 1 m² at an average thickness of 20 mm.

Lambda (k) value is 0.1 W/mK


Ecocork Material Datasheet (opens in new tab)

Ecocork Safety Datasheet (opens in new tab) 

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