RonaFloor Epoxy DPM is a two pack solvent free, liquid applied surface damp proof membrane designed to reduce the passage of water vapour. It allows epoxy resins and other moisture sensitive flooring to be applied to screeds and concrete when substrate relative humidity is high, up to 97%.

Quick Links - Click To Jump To Section:

• Features & Benefits
• Preparation
• Mixing
• Application
• Curing
• Working Temperatures
• Test Data

Features & Benefits

• For early application of moisture sensitive flooring on drying screeds and concrete
• Moisture tolerant, can be applied on substrates with relative humidity up to 97%
• Easy to apply
• Solvent free; low odour
• Use before application of Ronacrete screeds and coatings
• Use before application of vinyl flooring, tiles, carpet etc

Instructions for Use

To achieve optimal adhesion it is essential that RonaFloor Epoxy DPM is applied to structurally sound, clean and touch 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).

Substrates must be:

• Prepared by captive shot blasting or similar approved method to produce lightly textured, laitance free surfaces
• Cleaned to remove grease, oil and dirt
• Allowed to dry after washing
• Vacuum cleaned, to remove loose shot and other loose materials

Application Conditions

The workability and application characteristics of RonaFloor Epoxy DPM 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.

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) for approximately 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.

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

Application

1. Apply the first coat of RonaFloor Epoxy DPM by short or medium nap lambswool or mohair roller at the stated coverage
2. Allow to cure for approximately 24 hours at @ 20°C
3. Within 24 hours of applying the first coat, roller apply the second coat of RonaFloor Epoxy DPM
4. Apply RonaFloor coating or RonaFloor SL within 24 hours of applying the final coat of RonaFloor Epoxy DPM or broadcast 60 mesh kiln-dried sand into the wet resin to refusal, allow to cure, vacuum remove excess sand and protect the membrane until application of RonaFloor coating or RonaFloor SL
5. When RonaFloor Epoxy Floor Mortar is to be applied, broadcast 0.8-1.7mm kiln-dried sand or similar to refusal into the wet resin, allow to cure, vacuum remove excess sand and protect the membrane until RonaFloor Epoxy Floor Mortar is to be applied
6. When other flooring products are to be applied, broadcast kiln-dried sand (size appropriate to the thickness of the adhesive layer) to refusal into the wet resin, allow to cure, vacuum remove excess sand and protect the membrane until the flooring is to be applied

Clean tools immediately with xylene based solvent or RonaDeck Low VOC Cleaner.

Working Temperatures

RonaBond FC for Prison Cells can be used in most weather conditions and in a wide temperature range, typically from +3°C to 25°C and above. Note that at high ambient temperatures the working time of the mix will be reduced; it will be increased at lower temperatures. Ideally store materials between 10°C and 20°C before use.

Test Data

Water Permeability

ml/m²/sec

• 0-10 minutes: 0.04
10-30 minutes: 0.008 30-60 minutes: 0.004

Set Times

minutes

• Initial set: 31
• Final set: 59

Oxygen Diffusion

cm²/sec

• RonaBond FC for Prison Cells: 2 x 10-4
• Dense concrete: 1 x 10-3

Note that all quoted data is based on laboratory tests conducted at 20oC. Cubes, tested at 28 days, are 100mm and air cured. Results shown are MAXIMUM laboratory strengths achieved by casting and curing cubes in ideal working conditions; site strengths will be lower.