RonaFloor HB100 is a FeRFA Class 2 two component, solvent free epoxy floor coatings for use on concrete and polymer modified screeds. RonaFloor HB100 provides excellent abrasion and chemical resistance to floors subject to constant traffic. Cured dry film thickness for a 2 coat application is approximately 0.2mm.

RonaFloor HB100 provides an economical wear resistant surface. RonaFloor HB200 should be used when greater wear is expected or a longer life is required. Apply RonaFloor HB Vertical Grade to vertical surfaces.

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• Features & Benefits
• Case Studies
• Substrate Preparation
• Application Conditions
• Substrate Priming
• Mixing
• Application
• Cleaning
• Slip Resistance
• Colour Variation
• 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

Royal London Hospital

The hospital's helicopter landing pad ensures a swift emergency response to patients requiring attention, flying above the capital's congested roads. RonaFloor HB100 Rapid was applied to the steel structure to provide an anti-slip surface for parademics racing to and from aircraft, curing quickly in just 4 hours to return this vital area back into service fast.

Gogar Tram Depot

The depot services the crucial Glasgow-to-Edinburgh line includes a two storey accommodation block incorporating staff offices and associated staff facilities plus the tramway system control room. It also houses main workshop areas, an internal tram wash area, maintenance pits for tram maintenance as well as stabling areas where the trams are due to be located overnight.

5000m² of RonaFloor HB100 was applied to surfaces to clearly define hazardous areas, and was particular suited for the tram depot's environment due to its resistance to abrasion by constant traffic, its tolerance of train wash chemicals and oil spills.

Substrate Preparation

To achieve optimal adhesion it is essential that RonaFloor HB coatings are applied to structurally sound, clean and dry substrates.

Surfaces must:

• Be prepared after making good any defects in the floor, ensuring that friable materials are removed and replaced (for fast cure repairs refer to RonaFloor Repair 1 Hour data sheets)
• Be prepared by captive shot blasting or similar approved method to produce lightly textured, laitance free surfaces
• Be cleaned to remove grease, oil and dirt
• Be allowed to dry after washing
• Be vacuum cleaned, to remove loose shot and other loose materials

New concrete or screeds should be allowed to dry out for at least 28 days prior to coating. RH at the surface must be below 75% when measured with a hygrometer, or have a moisture content less than 5%.

Application Conditions

The workability and application characteristics of RonaFloor HB100 are adversely affected by low temperature; viscosity and curing time will increase.

Therefore the material should ideally be stored, mixed and applied at 15°C to 20°C.

At lower application temperatures the material should be stored at or warmed to 15°C to 20°C prior to use.

Application characteristics are severely affected below 10°C, minimum application temperature is 5°C.

Substrate Priming

When applying to porous concrete it is advisable to seal the prepared surface with RonaFloor Epoxy Primer, coverage up to 5m² per kg depending on porosity.

Mixing

Add the full contents of the B component to the full contents of the A component and mix with a slow speed drill and spiral mixing paddle (MR3 type) until a homogeneous colour is achieved. Typical mixing time is 3-4 minutes.

Transfer to a shallow paint tray immediately after mixing, or pour onto the floor, to control exothermic reaction and extend working time. This is of even greater importance when using Rapid Grade.

Material must never be taken directly from the mixing vessel, to avoid the risk of unmixed material being used.

Application

Apply minimum 2 coats by short or medium nap mohair or lambswool (not foam) roller directly from a paint tray.

Ensure intimate contact with the surface to ensure the floor is fully wetted.

Ensure that the required thickness is achieved, periodically checking thickness with a wet film gauge.

Do not attempt to apply the coating at a reduced thickness, which may produce roller marks and pigment separation.

The Rapid Grade has a shorter working time and pot life and material must therefore be mixed close to the area of application. The mixed resin must be immediately discharged onto the floor and spread before it begins to cure.

Cleaning

Brushes and tools should be cleaned immediately with xylene based solvent or RonaDeck Low VOC Cleaner.

Slip Resistance

Scatter RonaFloor A/S Aggregate onto the freshly applied first coat at the rate of approximately 1—3kg/m² and allow to cure. Remove excess aggregate with a vacuum cleaner and apply the second coat to encapsulate the aggregate.

Coverage of the second coat will be considerably reduced. The use of A/S Aggregate will reduce the ease with which the floor can be cleaned and the use of cold water power washers or scrubber/ dryers should be considered.

Coating with A/S Aggregate 0.1—0.3mm

• SRV (dry): 70
• SRV (wet): 64
• Surface roughness: 63µ
• Potential for Slip (dry): Extremely Low
• Potential for Slip (wet): Low

Coating with A/S Aggregate 0.4—0.8mm

• SRV (dry): 71
• SRV (wet): 62
• Surface roughness: 95µ
• Potential for Slip (dry): Extremely Low
• Potential for Slip (wet): Low

Colour Variation

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

• 10% Acetic Acid: Resistant
• 10% Lactic Acid: Spillage only
• 10% Nitric Acid: Spillage only
• 10% Teepol: Resistant
• 16% Bleach: Resistant
• 25% Ammonia: Resistant
• 30% Chromic Acid: Resistant
• 30% Hydrochloric Acid: Resistant
• 50% Phosphoric Acid: Spillage only
• 50% Sodium Hydroxide: Resistant
• 50% Sugar Solution: Resistant
• 20—50% Sulphuric Acid: Spillage only
• Acetone: Not recommended
• Animal Fats: Resistant
• Citric Acid: Resistant
• Engine Oil: Resistant
• Industrial Methylated Spirits: Spillage only
• Methanol: Spillage only
• Petrol: Resistant
• Skydrol: Resistant
• Tap Water: Resistant
• Toluene: Spillage only
• White Spirit: Resistant
• Xylene: 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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