Self Levelling Acid Resistant Screed

Description

CPR 606 Self Levelling Acid Resistant Screed is a rapid-curing, resin rich, three pack slurry, having exceptional resistance to aggressive acids, solvents and alcohols (e.g. 96-99% Sulphuric Acid, Methyl Ethyl Ketone, and Methanol).

CPR 606 Self Levelling Acid Resistant Screed is typically applied at thicknesses of 2-6mm depending upon service conditions and performance requirements. A slip resistant finish may be achieved by broadcasting an appropriate aggregate into the slurry. This screed may be applied directly to suitably prepared concrete or steel surfaces.

Typical Properties

Solvent free
Outstanding chemical resistance
Excellent adhesion to concrete and steel
Tough, durable and abrasion resistant
Very rapid cure, even at low temperatures
Slip resistant options

Direction for Use

Surface Preparation Concrete

Concrete 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.
Suitable mechanical treatment such as vacuum grit blasting is the preferred treatment prior to application as this ensures a mechanical ‘key’ for the slurry.

Surface Preparation Steel

Steel surfaces shall be shot blasted or grit blasted to a nominal Sa 2.5 Swedish standard to provide a coarse blast profile.
All dust and grease shall be removed prior to coating application.

Priming

Not normally necessary on concrete substrates, although a coat of CPR 414 – Acid Resistant Epoxy Concrete Primer may be applied to especially absorbent surfaces.
No primer is required for mechanically prepared steel substrates.

Mixing

The material is supplied as a three pack material consisting of the resin BASE component, the CURING AGENT component, and the FILLER component.
The contents of the Curing Agent container should be emptied into the Base container, and the two liquids mixed thoroughly, preferably by mechanical means.
The mixed Base & Curing Agent components should then be poured into a mixing vessel e.g. Creteangle type, and the Filler added whilst stirring, mixing thoroughly for 2-3 minutes..

Application

The mixed slurry shall be poured onto the prepared surface and spread out with a serrated trowel or steel float to a thickness of 2-6mm, as required.
The material may be spike rollered but this will not be required if an aggregate broadcast is to be made.
When a slip/skid resistant finish is required, an appropriate aggregate (such as Dynagrip, Calcined Bauxite, Flint, or Quartz) should be broadcast at a nominal rate of 6-15kg/m².
The following day the excess aggregate shall be swept from the floor.
Where a Sealer coat is required over an aggregate profiled surface, mix and apply a coat of CPR 602 – Acid Resistant Epoxy Paint at a nominal rate of 0.3-0.5kg/m².

Curing

Allow to cure for a minimum of 8 hours @ 20°C prior to light foot traffic access and 24 hours @ 20° prior to vehicular trafficking.
Allow a minimum of 5 days cure @ 20°C for optimum chemical resistance.
NOTE: Lower ambient and substrate temperatures will result in extended curing times.

Equipment Cleaning

Clean equipment with CPR 200 – Tool Clean Solvent prior to curing of the coating.

Limitations

Do not apply to wet or uncured concrete surfaces.
Do not apply at temperatures of 2°C or less.
Discoloration/bleaching of the coating can occur on contact with certain aggressive chemicals.
Discoloration is purely a surface effect that does not detract from the efficacy of the coating in service

Coverage

A 25kg pack is sufficient to cover an area of 6.9m² @ 2mm thickness, or 4.6m² @ 3mm thickness.

Technical Data

Pot life @ 20°C: 30 Minutes
Pot life @ 10°C: 60 Minutes
Colours: CPRL standard Grey, Red (BS4800 or RAL colours on request)
Walk on time @ 20°C: 8 Hours
Full traffic time @ 20°C: 24 Hours
Temperature range during application: 2°C – 35°C
Temperature range during service: -10°C – 70°C
Compressive Strength: 75 MPa
Excellent Chemical Resistance
Please consult our Technical Department for specific advice.
All products shall be applied strictly in accordance with the manufacturer’s instructions.

Shelf Life

Store in dry conditions, out of direct sunlight, at temperatures between 10°C and 25°C.
CPR 606 Self Levelling Acid Resistant Screed has a minimum shelf life of 12 months when stored in original, unopened containers in accordance with manufacturer’s instructions

Packaging

CPR 606 Self Levelling Acid Resistant Screed is supplied in 25kg packs

Safety Precautions

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.

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.