RonaFloor SL is a self-smoothing seamless epoxy resin flooring system. It combines good wear resistant properties with high chemical resistance and a smooth easy to clean gloss finish. RonaFloor SL floors are used in areas subject to foot and vehicle traffic in medium to heavy duty areas where decoration, durability and cleanliness are key requirements.

RonaFloor SL can be applied to a wide variety of building substrates at 2mm - 4mm thick, is waterproof, dustproof and available in a range of colours. The use of A/S Aggregate sprinkled in to the top surface of the wet screed can improve the level of slip resistance.

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• Features & Benefits
• Case Studies
• Substrate Preparation
• Substrate Testing
• Priming
• Mixing
• Application
• Slip Resistance
• Temperatures
• Note
• Chemical Resistance
• Osmotic Blistering

Features & Benefits

• Self smoothing epoxy floor screed
• Seamless
• High strength
• Decorative
• Good chemical resistance
• Easy to clean
• Can be applied to ‘green’ concrete with use of RonaFloor Epoxy DPM

Case Studies

Pinewood Studios

1,000m² of Ronacrete’s RonaFloor SL self-smoothing epoxy resin screed were laid in both Studio J and Studio K during their conversion from film to television usage.

It is important for TV cameras to be able to move around the Studio smoothly without the slightest jolt, unlike film cameras which usually run on tracks, so RonaFloor SL was specified as it provides easy to clean finish that allows trouble- free removal of studio floor paints.

Both studios previously had film- style timber flooring covering a concrete floor laid in sections. This timber floor was removed, the concrete mechanically prepared after priming a thin layer of RonaFloor SL self smoothing epoxy screed was placed on top.

Substrate Preparation

To achieve maximum adhesion it is essential that RonaFloor SL is applied to a structurally sound, clean substrate.

Remove all loose material from the surface and make good any structural defects (refer to Ronadeck or Monoset data sheet).

The surface should be cleaned of grease, oil, dirt, laitance etc by chemical cleaning and/or light grit or shot blasting.

It is good practice on such surfaces, new or old, to remove laitance. The surface should then be vacuumed to remove dust and debris.

Substrate Testing

The substrate must have a compressive strength not less than 25N/mm² and a direct tensile pull off strength greater than 1N/mm² after preparation. Substrate moisture content should not exceed 6% when tested with a Protimeter. The surface relative humidity should be less than 75% when measured with a hygrometer.

Uneven surfaces should be levelled prior to the application of RonaFloor SL using an appropriate Ronacrete levelling screed eg. Ronascreed or Ronafix. Please consult Ronacrete/Rawlins Technical on 0113 2455450 (option 2) or send a message to [email protected] for further information.

Priming

Epoxy Primer is a two part priming system comprising resin and hardener. Mix the total contents of the hardener with the resin and apply at a coverage rate of 0.18kg/m2. Allow to cure for between 12 and 24 hours and apply the RonaFloor SL. Depending on the quality and porosity of the substrate, additional primer coats may be required.

Mixing

RonaFloor SL is a three component system comprising resin, hardener and specially graded aggregates. Mix the complete contents of the resin and hardener in a forced action mixer until a uniform colour then slowly add the aggregate. Mix all components for at least 5 minutes.

Incomplete mixing will impair the flow properties of the material; therefore ensure that the product is thoroughly mixed before application.

Application

Pour the mixed RonaFloor SL onto the cured primer and spread with a notched trowel to a thickness of 2-3mm. Ensure all depressions in the substrate are filled.

Having achieved the desired levels spike roller the RonaFloor SL to allow any trapped air to escape. It may be necessary to carry out this operation more than once but ensure that the material will fully recover before spike rolling the surface again.

Always place adjacent mixes of RonaFloor SL against a wet edge. Note: spiked shoes should be worn.

Slip Resistance

To improve the level of slip resistance broadcast RonaFloor Slip Resistant Aggregate in to the top surface of RonaFloor SL before it loses workability - typically within 30 minutes of laying.

Temperature

The workability and flow characteristics of RonaFloor SL will vary according to temperature. Ideally store, mix and apply at 15-20oC. Avoid using when air and substrate temperatures are below 10°C. At high temperatures (> 25oC) the flow rate will be higher and pot life will be shorter.

Note

• Do not attempt to lay RonaFloor SL at product, air or substrate temperature below 10℃
• Do not apply external heat until the RonaFloor SL has firmed up
• Like most resin systems RonaFloor SL should not be used if the substrate does not have an effective damp proof membrane. If a dpm is required refer to the RonaFloor Epoxy DPM technical data sheet
• This product is a carefully formulated blend of resin, hardener and other chemicals, it is designed to be applied as sold. Any on-site dilution, however small, can affect the physical characteristics of the final finish as well as the application properties and curing times
• The product has been designed to be used as a full pack. Part mixing is not recommended
• Uneven surfaces should be levelled prior to the application of RonaFloor SL using an appropriate Ronacrete levelling screed eg. RonaScreed or Ronafix. Please consult Ronacrete/Rawlins Technical on 0113 2455450 (option 2) or send a message to [email protected] for further information
• Colour variation - Packs should be used in strict batch rotation. Individual areas or rooms should be treated with material from a single batch to avoid the inevitable minor variations in shade resulting from batch manufacture, otherwise matched batches should be used to minimise these variations (an extract from FeRFA Guide To The Specification And Application Of Synthetic Resin Flooring).

Chemical Resistance

• Tap water - Resistant
• Xylene - Spillage only
• 50% Sodium Hydroxide - Resistant
• White spirit - Resistant
• 25% Ammonia - Resistant
• 50% Sulphuric Acid - Resistant
• 30% Hydrochloric Acid - Resistant
• 30% Chromic Acid - Resistant
• 10% Acetic Acid - Resistant
• Skydrol - Resistant
• 10% Teepol - Resistant
• 50% Sugar solution - Resistant
• 16% Bleach - Resistant
• Toluene - Resistant
• 50% Phosphoric Acid - Spillage only
• Animal fats - Resistant
• 10% Lactic Acid - Spillage only
• 10% Nitric Acid - Resistant
• High Octane Petrol - Resistant
• Acetone - Not recommended
• Engine Oil - Resistant
• Methanol - Spillage only

Osmotic Blistering

In a few cases severe blistering of thin synthetic resin floorings can occur between 3 months and two years after laying. These blisters commonly vary in size from a few mm in diameter up to 100 mm, with heights up to 15 mm. When drilled into or otherwise broken the blisters are found to contain an aqueous liquid under very high pressure.

The mechanism of their formation is not fully understood but it is assumed because of their physical state that they are caused by a process of osmosis. Because the mechanism is not fully understood it is not possible to be specific about the steps which should be taken to avoid osmotic blistering. However it is considered good practice to take steps in order to minimise the risk (an extract from FeRFA Guidance Note No 2: Osmosis in Resin Flooring ISBN 0 9538020 5 1)

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