Ecomerchant Protect EWI

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The Ecomerchant Protect system is suitable for use in masonry, timber frame and cross laminated timber construction, for either new build or renovation projects. Ecomerchant have partnered with Lime Green and Steico to produce a complete and comprehensive external render system. This system offers insulation boards, fixings, beads & mouldings and a lime based render. In developing this system our priority has been the production of a water vapour open, low impact system.




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  1. Baumit MC55 Base/Top Coat Plaster/Render, natural white, fibre reinforced mineral  based mortar 25Kg

    Baumit MC55 Base/Top Coat Plaster/Render, natural white, fibre reinforced mineral based mortar 25Kg

    £18.42
    Baumit MC55 W is a highly versatile easy to use, natural white, fibre reinforced mineral based mortar.

    This versatile product and its natruallly sticky nature means that it has excellent adhesion properties on a wide range of substrates and can be used as a base coat for renders, as a reinforcing coat with fibreglass mesh (Baumit Startex),as an adhesive for keying wood fibre boards, as a topcoat finish render or as a remediating topcoat over existing mineral, synthetic or resin based plasters or paintwork. 

    Baumit MC55 W can also be used to prepare smooth concrete, mineral and synthetic renders and some painted surfaces to receive a render.

    When Baumit MultiContact MC 55 W is used as a topcoat finish it must receive a suitable water resistant paint such as Baumit NanoporColour.

    Baumit MC55 W is best mixed, using clean tap water, with a plaster whisk to a smooth lump free consistency or it can be spray applied.

    Yield: 8 m2 at 3 mm  or 5m2 at 5mm or 2.5m2 at 10mm thickness approx. Consumption: 1.0 kg/m2 approx.

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  2. Baumit UniPrimer, Breathable primer for renders and plasters

    Baumit UniPrimer, Breathable primer for renders and plasters

    £23.74
    BaumitUniPrimer is a vapour open primer used to reduce and equalise the suction of substrates, to equalise the colour of the substrate, to enhance the water repellency of the substrate, to mprove adhesion and to enabling bonding to a wide range of substrates.

    BaumitUniPrimer can be used internally and externally

    It is suitable for application on to contact mortars, lime and cement based plasters/renders, concrete and well adhered mineral, silicate and masonry paints.

    Baumit UniPrimer should be well mixed before use, normally with a plaster whisk, and then applied evenly to the surface by brush or roller.

    When using rollers it is often useful to add up to 5% water as this method applies the primer more thickly.

    The primer should then be left for 24 hours before any further coating are applied.

    Yield*: 100 – 125 m²/25 kg bucket on base coats

    20 – 25 m²/5 kg bucket on base coats

    12 m²/5 kg bucket on render coats

    Consumption [m2]*: 0.2 – 0.25 kg/m² on base coats 0.40 kg/ m² on render coats

    *Approximately, dependent on the absorbency of the substrate

    Please remember that this product should only be used between 5C and 30oC and that humidity will affect drying times for this product.

    Price is per bucket Learn More
  3. Steico Protect DRY Internal & External Wood Fibre Render/Plaster Carrying Board 1325mm x 600mm. 40, 60 & 80mm thick

    Steico Protect DRY Internal & External Wood Fibre Render/Plaster Carrying Board 1325mm x 600mm. 40, 60 & 80mm thick

    BOARD ONLY, for the render system please see "Ecomerchant EWI"

    Steico Protect DRY is a natural render carrying wood fibre insulation board with a tongue and groove profile manufactured in accordance with EN 13171, designed as an external sheathing board for timber frame constructions or for direct to masonry applications in external wall insulation systems where the render is applied directly to the board.

    It is quite common for architects and designers to specify Protect DRY boards in certain building applications and in combination with a separately specified finish or render system, this is why we sell the boards individually and not just as part of our Ecomerchant EWI Protect System. When sold separately as individual boards Ecomerchant offer no guarantees or warranties for Protect DRY when used in conjunction with renders, plasters or finishes.

    For ultimate peace of mind we recommend our certified, CE marked Ecomerchant EWI Protect System

    Board size 1325mm x 600mm. Board Coverage: 0.747m2 / board

    Available in 40mm, 60mm & 80mm thicknesses 

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  4. Prepbond WP Lime Render Base Coat 18kg

    Prepbond WP Lime Render Base Coat 18kg

    £22.18

    This is part of a BBA approved system and cannot be purchased online, please call 01793 847 444 to purchase.

    Externally, Prepbond WP lime render undercoat is applied directly to wood fibre and general insulation boards to ensure a good surface bond for renders.  Once applied, it still allows a wall to breathe and provides additional protection against weather so insulation stays dry.

    Prepbond WP is made from natural hydraulic lime combined with natural and recycled aggregates and so can be confidently used for ‘green building' or to meet specific environmental requirements.

    Price is for 1 x 18kg bag

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  5. Glass Fibre Mesh 660 2

    Glass Fibre Mesh 660 1m x 50m Roll

    Regular Price: £97.38

    Special Price £59.00

    A medium guage mesh type 660, 1 x 50mtr

    For reinforcing internal plaster such as Solo and for use to re-inforce render base coats 

    Price is per roll

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  6. Natural Finish WP, Coloured Lime Render, All Colours 22kg

    Natural Finish WP, Coloured Lime Render, All Colours 22kg

    Regular Price: £17.87

    Special Price £17.51

    This is part of a BBA approved system and cannot be purchased online, please call 01793 847 444 to purchase.

    22kg - a natural lime final coat for use with the Prepbond WP basecoat a through coloured hydraulic lime finish coat with excellent adhesion and weather resistance.  Based on hydraulic lime, natural and recycled aggregates 

    Available in a wide range of colours please call 01793 847 444 for details or choose from the standard colours by clicking on the 'More Info' tab below

    Price is per 22Kg bag

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  7. Insulation Fixings for solid walls 3

    Insulation Fixings for solid walls (box of 200)

    Regular Price: £32.13

    Special Price £29.35

    A universal ISO nylon insulation anchor, which is preassembled allowing quick and easy installation of rigid wood fibre and other insulating boards to masonry, brick, cob, stone etc can be used with insulation thickneses from 20mm - 200mm.

    Drill through insert sleeve, hammer in fixing peg. All plastic construction helps minimise cold bridging Available in a selection of sizes - please see drop down menu above.

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  8. Insulation retaining washer 60mm hinged cap 1

    Insulation retaining washer 60mm hinged cap (box of 100)

    Regular Price: £15.95

    Special Price £9.95

    Insulation Retaining Washers are used for securing rigid insulation. Using these 60mm diameter washers reduces cold bridging and allows for movement without damaging the surface finish.

    To be used with Insulation fixing screws

    Price is per box of 100

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  9. CSK Insulation fixing screws 1

    CSK Insulation fixing screws (for wood)

    Regular Price: £19.69

    Special Price £6.30

    High quality fixings designed to go into wood and stud work.

    To be used with 60mm hinge capped insulation retaining washer. To be used with woodfibre boards from 60mm - 240mm thick.

    Price is per box of 200 (fixings over 150mm long are 100 per box)

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