New Plasterboard
| New Plaster | Tile
| MDF
New Plasterboard
Before painting materials like new plasterboard be sure
all joints and patches are sanded smooth, and dusted with
a cloth. Next apply a wallboard-specific sealer. Pay attention
to the manufacturer's instructions and spread rates. As
an alternative, a general purpose stain-blocking interior
sealer can be used. If staining occurs with a wallboard
sealer, apply a stain-blocking sealer.
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New Plaster
Allow
plaster to dry thoroughly. With a simple patch job, this
will take one to two days, for larger areas like walls and
ceilings it can require a week or more depending on the
weather and interior humidity conditions. Thick plaster
applied in extremely humid conditions can take a month to
dry adequately. Once dry, all rough areas must be sanded
smooth with medium grade paper followed by a second treatment
with fine grade paper. Clean surface of all dust with a
dry cloth and then apply a stain-blocking interior water-based
sealer recommended for plaster surfaces. Be sure to wear
a mask and protective eyewear when sanding.
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Tile
Treat any suspected fungal
contamination and inspect grout joints and repair them as
necessary. Next wash the entire surface with a detergent
and an abrasive non-metallic pad. Rinse and dry thoroughly.
As an option to guarantee maximum adhesion, sand the tile
surface with a fine aluminium oxide sand paper. Clean area
off with a damp cloth. Use a high-adhesion interior water-based
bonding primer. This type of primer requires the use of
a respirator and ample ventilation. Allow it to dry thoroughly
before applying a finish coat.
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MDF
Medium Density Fibreboard
is a manufactured wood made from sheets of compressed fibres.
It is highly versatile and can be used for structural purposes
like eg. cupboards. This surface should be treated like
any hardboard surface when decorating. MDF is capable of
taking most paints.
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