MMA Flexible Deck Coating

Description

CPR 822 – MMA Flexible Deck Coating is a three pack Methacrylate resin system, modified to impart toughness, resilience and waterproofing properties to the cured membrane.

The abrasion and impact resistance, together with the low temperature flexibility and excellent adhesion to concrete and steel make CPR 822 – MMA Flexible Deck Coating an ideal material for uses as a membrane subjected to vehicular traffic. By broadcasting a layer of suitable aggregate, a slip resistant surface profile may readily be achieved.

Typical Properties

Ultra fast curing characteristics
Tough resilient, and highly durable
Range of slip and skid resistant finishes
Resistant to oil, petrol, diesel and many industrial chemicals
Flexible and abrasion resistant
Colour options to allow easy differentiation of specific areas e.g. walkways and parking bays in different colours
Low temperature cure
Suitable for indoor and outdoor surfaces

Directions for Use

Surface Preparation

Concrete surfaces shall be a minimum of 21 days old and/or the residual moisture content shall be below 6%.
Ensure that the concrete is clean and free from dust, laitance, grease, oil, curing compound, and existing paint finishes, etc.
Blow holes and defective concrete shall be made good using a proprietary repair compound e.g. CPR 711 – MMA Concrete Patch Repair Mortar.
Suitable mechanical treatment, such as vacuum grit blasting, is the preferred treatment prior to application as this ensures a mechanical ‘key’ which will optimise adhesion.
Steel surfaces shall be shot blasted or grit blasted to a nominal Sa 2.5 Swedish Standard and to provide a medium blast profile.
All dust shall be removed prior to coating application.
A coat of CPR 412 – MMA Metal Primer shall be applied as soon as practicable after blasting, in order to obviate the possible occurrence of ‘flash rusting’.

Priming

Concrete surfaces shall be primed with a coat of CPR 406 – MMA Concrete Primer, applied by brush, or roller, at a nominal rate of 0.3kg/m².
Long nap lambswool rollers are recommended for primer application.
Allow primer to cure for a minimum of 40 minutes.
Steel surfaces shall be primed with CPR 412 – MMA Metal Primer.

Mixing

CPR 822 – MMA Flexible Deck Coating is supplied as a three pack material consisting of the BASE component, and the CATALYST component and the FILLER component.
Add the CATALYST component to the BASE component and mix thoroughly, preferably by mechanical means for a minimum of 2 minutes.
Pour the contents into a mixing vessel and add the FILLER component whilst stirring.
A low speed drill with paddle attachment may be used or else a forced action mixer e.g. Creteangle type.

Application

Pour the mixed material onto the prepared and pre-primed surface and apply by serrated trowel to the desired thickness.
De-aerate the material by spike rollering.
Within 5 minutes, broadcast the appropriate aggregate at a nominal rate of 6kg – 15kg/m².
When cured, sweep off excess aggregate.

Sealing

The application of a clear sealer coat is recommended to reduce tendency towards staining and dirt pick up, and thereby ensure optimum ease of cleaning where required.
Apply a roller coat of CPR 907 – MMA Clear Sealer or CPR 825 – MMA Colour Stable Coating at a nominal rate of 0.3 – 0.5kg/m² and allow to cure for a minimum of 2 hours prior to putting back into service.
A second coat maybe necessary where large Aggregate has been used as scatter.

Equipment Cleaning

Clean equipment with CPR 200 – MMA Tool Clean Solvent immediately after use.

Curing

Light Foot Traffic: 1 hour @ 20°C
Full chemical resistance: 24 hours @ 20°C

Storage and Shelf Life

Store in dry conditions, out of direct sunlight, at temperatures between 10°C and 20°C.
Adequate ventilation of the storage area should be provided.
Keep container tightly closed when not in use CPR 822 – MMA Flexible Deck Coating has a minimum shelf life of 6 months when stored in original, unopened containers in accordance with manufacturer’s instructions.

Packaging

CPR 822 – MMA Flexible Deck Coating is supplied in 20kg packs

Coverage

A 20kg pack is sufficient to cover an area of 2.8m² at a thickness of 4mm.

Technical Data

Colour: Grey and Black as standard (any BS4800 or RAL colour can be supplied upon request)
Pot life @ 20°C: 25 Minutes
Thickness: Minimum 3mm, maximum 8mm
Tensile strength: 6MPa @ 20°C
Elongation at break: 180% @ 20°C
Temperature range during application: -30°C* to + 40°C
Temperature range during service: -40°C to + 60°C
Chemical resistance: Excellent resistance to dilute acids and alkalis, oil, petrol, diesel, vegetable oils, and fruit juices.
Refer to our Technical Department for advice.

Limitations

Do not apply to wet, uncured or unprimed concrete surfaces.
CPR 822 – MMA Flexible Deck Coating will taint food during application, so that all foodstuffs in the immediate vicinity must be removed or properly covered.

Health and Safety

CPR 822 – MMA Flexible Deck Coating is flammable during application, so that adequate safety precautions should be observed.
Avoid contact of the material with skin and eyes.
Wear gloves and goggles.
Wash off splashes immediately with soap and water.
Any eye contamination must be rapidly irrigated with copious amounts of clean water, and immediate medical attention sought.
Please refer to Material Safety Data Sheet for additional information.
CPR 822 – MMA Flexible Deck Coating shall be applied strictly in accordance with the manufacturer’s instructions.
For specific advice regarding any aspect of this product please consult our Technical Department.

Legal Notice

Whilst all reasonable care is taken in compiling technical data on the Company’s products, all recommendations or suggestions regarding the use of such products are made without guarantee, since the conditions of use are beyond the control of the Company.

It is the customer’s responsibility to satisfy himself that each product is fit for the purpose for which he intends to use it, that the actual conditions of use are suitable and that in the light of our continual research and development program the information relating to each product has not been superseded.