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Prepbond WP Lime Render Base Coat 18kg

Prepbond WP Lime Render Base Coat 18kg

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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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18kg - Special basecoat for woodfibre boards,

Uses - Steico /cork board

Basecoat render for boards and external wall insulation systems. Suitable for covering mineral wool, wood fibre insulation, polystyrene and many other surfaces.

Coverage

One 18kg bag will cover approximately 1.5m2 at 10mm thick on a flat background.

This does not include any allowance for wastage.

Surface Preparation

Site planning must be addressed before starting work.

Ensure all board surfaces are suitably fixed, with tidy fitted edges and misses suitably filled. Board surfaces must be dry and free of any material that may impair adhesion. Attention should be given to the correct water detailing to ensure an adequate drip from the bottom bead.

Mixing

Prepbond WP should be mixed either with a suitable render spray machine or drill and whisk with 5-6 litres of clean water. Typical mixing time is between 5-10 minutes.

Application Guidelines

Typical Thickness: 10mm

Temperatures: above 5°C and below 30°C.

Apply "Prepbond WP" directly onto insulation boards in 2 passes in accordance with best practice guidelines in BS EN 13914-1: 2005 using competent persons. Into the first pass embed Lime green Fibre Mesh 660 over the whole area, overlapping the joins by 100mm. Apply second coat immediately to final thickness.

Thoroughly scratch in a horizontal direction no deeper than 3mm, using a render comb to produce a key.

Curing

Prevent from drying out too rapidly. Lightly spray each coat with water if it is hot or the product is drying too quickly.

Use Finish WP as the final coat

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£22.18

Availability: In stock