Acoustic Tile

When working with Acoustic Tile, seal brownish rings with Polyprep 145-022 or GoPrime all-in one 150-135.

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Ceramic Painting

Because bathroom walls are exposed to a wide range of contaminants (soap, oil, dirt, grime etc.), meticulous surface preparation is essential. Note that these recommendations exclude bathrooms and showers walls.
Follow these steps:

Surface preparation:
Clean the surface using a cleaner with active oxygen Polyprep 771-135 (liquid) or 771-136 (powder). Then rinse clear with water.
Using a circular movement, rub down the surface with 120 to 150 grit sandpaper. This takes off the surface sheen and allows the paint to adhere to the surface much more easily.
Apply a coat of the primer GoPrime All-in-One alkyd emulsion (150-135).

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Concrete And Other Masonry

Concrete must cure for at least 28 days and be thoroughly dry. Remove all spatters, rough patches and burrs by scraping. Eliminate dust with a broom or stiff brush. Use cement mortar to fill in holes, cracks, honeycombing or other obvious defects, and allow curing. If there are efflorescent salts, brush with a diluted solution of Polyprep 771-127 muriatic acid, rinse with clean water and allow to dry. Eliminate all grease, tar and oil stains by washing with Polyprep 875-104 thinner, rinse and allow to dry. Muriatic acid is ineffective in removing oil and other greasy stains. Smooth concrete surfaces like floors and stairs must be treated with diluted muriatic acid, Polyprep 771-127, to obtain better paint adhesion. Allow the acid to work, then rinse thoroughly with clean water.
 

Exterior Wood With Semi-Transparent Stain

Sand rough spots. Eliminate marks and stains by scraping, sanding or chemical stripping Sico Cleaner, brightener and conditioner for exterior wood –771-222 (Powder) 771-333 (liquid) or 771-666 (liquid, environmental choice).

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Plaster

Ensure that the plaster dried and hardened in favorable conditions (minimum temperature of 12 °C or 55 °F) and that the room has been properly aired. Thoroughly dry plaster should contain no more than 6% moisture when measured with a hydrometer. Enlarge any cracks and plug with plaster filler. Remove seeding and rough spots with a scraper. Anyone of the  GoPrime primers can be applied on new plaster.

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Pre-painted Aluminum Siding

Using a brush, wash with Sico wood cleaner 771-333 (liquid) or 771-666 (liquid, environmental choice) or with a cleaner with active oxygen 771-132 and rinse.

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Previously Painted Surfaces

Previously painted surfaces must be clean, dry, free of dust, dirt, grease, oil, wax, rust, flaking paint or any other contaminant that can prevent paint adhesion (see the section on surface preparation). According to the current colour of the surface, the colour you want to use and the type of paint currently on the surface, some of the primers GoPrime series may be suggested.

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Vinyl Siding

Before painting, thoroughly clean with the Cleaner, brightener and conditioner for exterior wood Sico 771-333 (liquid) or 771-666 (liquid, environmental choice) or active oxygen cleaner 771-132. As this material is very sensitive to heat, it should be painted with a colour identical to the original siding or a lighter colour. Painting it a darker colour will warp siding permanently.

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How To Fix Greying Wood

If the wood has become grey due to prolonged unprotected exposure to the weather, clean the surface with Cleaner, brightener and conditioner for exterior wood – 771-222 (Powder), 771-333 (liquid) or 771-666 (liquid, environmental choice).

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