Bona R580 Moisture Barrier

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Bona R580 Moisture Barrier

A unique, single coat, fast setting, silane-based moisture barrier. Water and solvent-free, Bona R580 is designed to treat damp sub floors prior to the installation of wood flooring using Bona silane-based adhesives. Bona R580 can be used as a 2-component system with water to gain an even shorter setting time.

 

Bona R580 is water and solvent free silane based compound for priming and/or sealing

the residual moisture in the substrate (up to 5%CM. / 98%RH.) before installing a

wooden floor.

Optimal as part of a system in conjunction with Bona R850, R850T.

Suitable to apply before using Bona levelling compounds

Note: Although Bona silane-based adhesives can be applied directly onto R580, before

applying levelling compounds a broadcasting of sand in the wet R580 must be made to

ensure successful bonding.

• One-Component

• Single coat application

• Fast setting

• Trowel easy application

• Can be used as a two component system to gain even shorter setting time, by adding

and mixing 1% water (weight)

• Not hazardous, safe handling and transport without constraints

Note: Where subfloors require levelling as well as a moisture barrier, it is

recommended that the moisture barrier is installed first and then levelling compound

applied (see Preparation).

Base: Silane-based moisture barrier/primer

Colour: White

Viscosity: Easy to apply-stable

Density: 1.25g/cm³

Drying time, until: - Application of Bona silane-based adhesive: approx 6 hours*

(1-component) -Application of levelling compound:8-12 hours*

(Note: sand must be broadcasted into wet R580)

Application tools: Fine-toothed trowel (A3)

Application rate: See Treatment Schedule, below

Cleaning agents: S100, acetone and ethanol, white spirit

Safety According to EU law the product is non-hazardous

 

 

Disposal: Wastes and emptied containers should be handled in accordance

with local regulations.

Pack size: 7kg bucket

Cover area: 7 sqm 

Installation

The substrate must be even, clean, free from cracks and physically sound. Prior to

application the floors must always be sanded, any laitance on top of the floor must have

been removed. With concrete subfloors shot blasting may be necessary. The surface

should not appear “obviously wet”. If necessary it should be professionally prepared for

laying.

Note: R580 cannot be used onto a subfloor where bitumen is present. The subfloor

should be mechanically prepared to ensure all traces are removed prior to application.

If the floor is uneven and levelling with a levelling compound (e.g.H650) is needed, the

R580 should be applied first at a coverage rate of approximately 500 g/m². Afterwards

quartz sand (grain size: 0.3 to 0.8 mm) should be broadcasted in excess ( ~ 2 kg /m²)

into the fresh, wet primer.

After hardening, surplus sand shall be removed by buffing, sweeping and vacuum

cleaning, then the levelling compound can be applied.

Suitable substrates (also in association with underfloor heating) are:

Cementitious screed (CT) according to EN 13813

Concrete floors

Calcium sulphate screed (CA) according to EN 13813 (only as a primer, not as a

moisture barrier!).

Before using the primer 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 product is protected by a foil, which must be removed together with any small

amounts of hardened material prior to use. With the 6kg container, the little bag on top

of the foil contains water, which can be added to the product if used as a 2-component

system.

Use as a 1 Component System:

The primer should be applied evenly using a notched trowel (TKB A3) or a flat trowel.

To act as a damp proof membrane the consumption must be between 500 & 1000 g/m².

After approximately 6 hours setting time (the surface might still be sticky!), the parquet

can be laid providing a Bona silane-based adhesive is used e.g.R850).

Use as a 2-Component System:

Add , while stirring , to the primer the total or parts of the content of the sachet found on

top of the foil (only for the 6 kg 2-C package!).

Larger amounts of water lead to an acceleration of the bonding process, lower amounts

make the bonding process slower (for more detail see the table below). After mixing

cross-linking starts, the material has to be applied to the substrate inside the pot-life

time of 20 mins. and has to be spread. If sand is to be broadcasted, it should be done

in the following 20 min.

After 4 hours the material has set, the Bona silane-based adhesive can be spread on

top and parquet can be laid.

Free delivery is offer for this product.