SINGLE COMPONENT POLYMER MODIFIED FAIRING COAT.
COSMETIC MORTAR FOR CONCRETE SURFACES.
REPAIR 300 is a single component acrylic polymer modiﬁed repair mortar for use as a “fairing coat” or cosmetic mortar. When mixed with water, as directed, a ﬁne grey trowellable mortar results which can readily be applied to ﬁll in pores, blowholes and blemishes on a concrete surface.
REPAIR 300 can be used as a ‘skim’ coat prior to the application of protective coatings. REPAIR 300 is specially formulated to produce
a shrinkage compensating mortar with no cracking when applied in a thin section. Adhesion to concrete and ﬂexibil- ity are excellent.
– As a fairing or skim coat to cover nd make good blemishes in concrete sur-faces such as slight honey-combing, blowholes, defects caused by ‘sand runs’, patch repairs, shutter
– Preparatory treatment to concrete to receive a thin ﬁlm protective coating.
– To produce a uniform surface over re-paired areas.
– Precision made, consistent results.
– Requires only the addition of mixing wa-ter.
– Shrinkage compensating.
– Excellent adhesion to concrete.
– Smooth, easily produced ﬁnish.
– Low permeability
– Excellent resistance to freeze / thaw action and carbonation.
– Ingress of water borne salts, such as chloride and atmospheric / chemical at-tack.
– Subsequent paint coats can be applied with greater economy.
Plastic density: 1700kg/m³
Compressive strength at 28 days 27N/mm²
REPAIR 300 should be applied to the complete area with the minimum of troweling. Leave for a short period before ﬁnal troweling. Finishing may be aided by ﬂicking a small amount of water onto the surface, using a paint brush before ﬁnal troweling. When used as a “scrape coat” REPAIR 300 can be applied with a brush or roller and then the excess scraped off with the edge of a steel ﬂoat. In this way blow holes and minor blemishes in an otherwise fair faced concrete can be hidden.
Good curing practice is essential even though REPAIR
300 is specially formulated to prevent shrinkage and cracking. Particular care is required in hot and windy conditions.
Cure with a single coat of SUPER SELAR GP-770 which is compatible with most subsequent protective coatings
or by covering the work with a properly secured plastic sheeting.
It is essential that the surfaces to be bonded are sound, clean and uncontaminated. All loose powdering material must be removed.
Concrete surfaces should be thoroughly soaked prior to application of REPAIR 300, to ensure a saturated, but surface dry condition.
Deeper voids should be ﬁlled prior to the application of a cosmetic coating by reducing the amount of water added when mixing to produce a trowellable putty like mortar.
REPAIR 300 is formulated to give an easily mixed material. For full bag quantities, it is preferable to mix the material in a Crete angle or similar forced action mixer. Alternatively, a slow speed, hand held electric mixer with a suit-able paddle can be used. Over mixing should be avoided. The powder should be placed in the mixing vessel and mixing commenced. Clean water should be slowly added up to the recommended maximum or until the required consistency is achieved. No more than 4.75 liters of water per 25kg of REPAIR 300 should be added.
One 25kg bag of REPAIR 300 will typically yield 16 liters of mortar and will cover approximately 6.3m² at 2.5mm thickness.
Tools should be washed with water immediately after use.
Store out of direct sunlight, clear of the ground on pallets protected from rainfall. Avoid excessive compaction. Failure to comply with the recommended storage conditions may result in premature deterioration of the product or pack-aging. For speciﬁc storage advice consult POLYWED Technical Services Department.
REPAIR 300 is supplied in 25kg bags.
– Health and Safety:
As with all chemical products, care should be taken during use and storage to avoid contact with eyes, mouth, skin and foodstuffs. Treat splashes to eyes and skin immediately. If accidentally ingested, seek medical attention. Reseal containers after use. Use in well ventilated areas and avoid inhalation. For further informa- tion refer to the material safety data sheet.
FOR MORE INFORMATION, PLEASE CON- TACT PHONENO.00966 2 6204224