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Concrete Walls Coatings Systems

Cementitious substrates are porous in nature. They absorb water, oil, and dirt. They exhibit poor resistance to wearing and abrasion. Therefore, they require finishes based on materials selected to withstand the conditions likely to be experienced in the proposed service environment.

Surface Preparation:

Well-prepared-surfaces is an essential condition of coating successfulness. Concrete surfaces should be clean and free from oil, grease, and dust. New concrete should be fully cured.

PRIMING

WT01:	water base acrylic primer / sealer used directly on exterior and interior concrete surfaces. WT01 penetrates and seals surface porosity and provides a highly adhesive coat suitable to be topcoated by almost all kinds of coatings.
STOP200 :	Fast setting and highly adherent damp-proof putty, suitable to be applied in thicknesses up to 4 cm directly on cement or over WT01 primer.
WT03:	Easy to use and fast drying water base putty suitable to be applied over WT01 and / or STOP200, and also over WT05 to provide a high quality even surface. WT03 is suitable to be topcoated by WT05 or SYN210.
WT05:	Water emulsion acrylic intermediate or finishing coat suitable to be applied directly on cement surfaces or over WT03 or STOP200. They provide coatings that are highly adherent and featuring excellent hiding power and having acceptable smoothness. They are suitable to be used as undercoat and therefore to be topcoated by all kinds of water base and solvent base coatings.
Water reducible Alkyd Primer Undercoat :
	recommended to be applied over WT03 putty to provide a smooth coat suitable to be topcoated by all kinds of water base coatings. SYN210: oil based primer used directly on wood, concrete and metal surfaces or over WT03. It provides a highly adherent and smooth coat suitable to be topcoated by all oil based coatings (SYN TOPCOAT, Original Z117, Z127, Z137).

FINISHING COAT

WT07: High quality acrylic emulsion gloss finishing coat.

WT08: High quality acrylic emulsion flat finishing coat.

Water Reducible Alkyd Coat: High quality water reducible alkyd gloss coat.

SYN TOPCOAT: synthetic coat available in gloss or eggshell finishes.

Original: gloss (Z117), semi-gloss (Z127) and matt (Z137) finishes.

AB Latex: Antibacterial finishing coat recommended for hospitals and laboratories.

Table 1 shows some of the recommended coating systems for concrete walls and ceilings.

TABLE 1: WALLS AND CEILINGS PROTECTION

End Use	Primer/Filler + Undercoaters	Coat
Interior and exterior wall and ceiling for home and office decoration.
Water base system	WT01 + WT03 filler + WT05 Or Water reducible Alkyd Primer Undercoat	Semi-Gloss: WT07 Or Water Reducible Alkyd Coat Flat: WT08 Or FRANJI Coat Or Texture coatings: WT11
Oil base finishing coat	(WT01 or SYN210 Primer) + WT03 filler + WT05	SYN TOPCOAT or ORIGINAL Z117-Z127-Z137
Wall and ceiling protection in laboratories and hospitals from the growth of bacteria, fungi, and algae.	WT01 + WT03filler + WT05	AB Latex
Wall and ceiling protection in kitchens, laundries, bathrooms, laboratories, hospitals, chemical plants, oil refineries, food & beverage factories, breweries and pharmaceutical industries.	WT01 + WT03 filler + WT05	EPX07
Protection of concrete surfaces from fire in addition to its excellent weather resistance.	STOP200	FireProtect or Fire Protect Ultra (Intumescent Paint)
Protection of interior and exterior concrete floors from water ingress, dirt, and wear.	ACR Concrete Sealer