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Bona R540

Name: Bona R540
Brand: Bona
SKU: BWAD
Price: 139.74 GBP
Availability: InStock

Size

£139.74

You can still order and we'll send your goods as soon they're in stock. You can also set up a stock email reminder

Quantity

FREE Delivery over £60.Order by 5pm for next day option*

A multi-purpose primer and damp proof membrane for absorbent and non-absorbent subfloors. Compatible with Bona's Silane and PU adhesives.

Features

A single-component, polyurethane primer and moisture suppressant
Primes and reinforces subfloors before flooring adhesive application
Compatible with all Bona silane and polyurethane adhesives
Suitable for absorbent and non-absorbent substrates
Moisture suppression up to 80% RH / 4% moisture content
Compatible with underfloor heating
High VOC

Brand

Bona

Drying time

24 hrs

No. of coats

Coverage

Up to 1.5 m² per litre

Size

6kg

MPN

Please Select Size/Option

GTIN

Please Select Size/Option

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Overview

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As of 24 August 2023, adequate training is required before industrial or professional use of this product. Further information available at www.feica.eu/PUinfo or www.safeusediisocyanates.eu

Bona R540 is a multi-purpose primer / damp-proof membrane for both absorbent and non-absorbent subfloors. It can be used for damp-proofing concrete or cementitious subfloors with up to 4 CM% in humidity.

Suitable Substrates

Cementitious screed (CT) according to EN 13813
Calcium sulfate screed (CA) according to EN 13813 (only as a primer, not as a DPM)
Mastic asphalt screed (AS) according to EN 13813
Concrete floors
Magnesia floors
Floors levelled with levelling compounds (at least 2 mm thick)
Chipboard (V100)

Bona Adhesives

Bona R540 is compatible with all Bona silane and polyurethane adhesives, including:

Product	Use
Bona R848 Adhesive	An elastic, one-component, silane-based adhesive for installing engineered timber products or narrow solid boards
Bona Quantum	An elastic, one-component, silane-based adhesive for parquet flooring and most other types of timber products
Bona Titan	A hard-formulated, silane-based adhesive for all physically sound sub-floors

Preparation

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The substrate must be even, totally dry, clean, free from cracks and physically sound. The surface should also be slightly textured. If necessary, it should be professionally prepared for laying.

Application

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Always apply a small test area before beginning any project to assess consistency and compatibility of the product. Follow the manufacturer's instructions on the container at all times. Before use, the following climatic conditions must be met (values for Central Europe):

Air temperature: min. 18°C
Floor temperature: min. 15°C (with underfloor heating max. 20°C)
R.H: max. 70%

The primer itself must, if necessary, be brought to the right temperature.

Apply the primer evenly to the substrate using a brush or roller
Avoid the formation of pools
Allow to dry to a transparent film
Occasionally, foaming can happen, due to high consumption
Can be used as a moisture barrier up to 4CM%, by applying a second layer of Bona R540 within 24 hours

Please see minimum drying time for the different adhesives in the table below:

Bona R770/R777/R778: 1 hour
Bona R845/R870T: 4 hours
Bona R844/R848/R860/Bona Quantum/Bona Quantum-T: 24 hours

High relative air humidity and temperature will shorten the drying time; low air humidity and temperature will lengthen the drying time. When in doubt a longer drying time is recommended.

Please note: Due to the formulation of this product, it is unlikely that any application rollers or brushes will be salvageable after use.

Consumption

Primer: Approx. 100-150g/m²
Damp proofing up to 4 CM%: Approx. 250-350g/m²

Datasheets

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Bona R540 - Safety Information Bona R540 - Technical Information