Solving problems

Solutions for:

...indoors painting...outdoors painting...wooden surfaces...metallic surfaces

Black spots have appeared in the walls

On the ceilings and high points of the walls, black spots have appeared. What has happened?

CAUSE: a) Increased moisture

b) Very soiled surfaces which are food for growth of microorganisms (fungi) that create black spots.

c) Surfaces which are not sunny and not ventilated properly.

SOLUTION: If the cause of the phenomenon is the accumulated moisture, you will first need to repair points that may cause this (eg roofs, ruined pipes etc). Having solved the problem of moisture the following recoating process is recommended:

Step 1: Clean the surface with the FUNGICIDE CLEANER of VIVECHROM.

Step 2: Prime the surface with NEOPAL PRIMER.

Step 3: Apply two coats of the fungicide emulsion paint NEOPAL KITCHEN BATHROOM.

Moisture & mold has appeared in the walls

Mainly in the low point of the painted surface moisture and mold has appeared. What has happened?

CAUSE: a) Increased moisture

b) Very soiled surfaces which are food for growth of microorganisms (fungi) that create the black spots.

c) Surfaces which are not being seen by the sun and not ventilated properly.

SOLUTION: If the cause of the phenomenon is the accumulated moisture, you will first need to repair points that may cause this (eg roofs, ruined pipes etc). Having solved the problem of moisture the following recoating process is recommended:

Step 1: Clean the surface with the FUNGICIDE CLEANER of VIVECHROM.

Step 2: Prime the surface with NEOPAL PRIMER.

Step 3: Apply two coats of fungicide emulsion paint NEOPAL KITCHEN & BATHROOM

Cracks of paint in a puttied surface

Cracks of paint in points where the surface is puttied. What has happened?

CAUSE: a) Apply paint without priming in the points that have been puttied.

b) Use of poor quality paint

c) Use of poor quality stucco or paretina

SOLUTION: The following recoating process is recommended:

Step 1: Remove loose points locally using a trowel or stiff brush.

Step 2: Prime the surface with NEOPAL PRIMER.

Step 3: Fill the surface with acrylic stucco STOCOCRYL.

Step 4: Apply two coats of high quality emulsion paint SUPER NEOPAL

Cracks in the paint

On painted surface cracks of paint are identified. What should I do?

CAUSE: a) Use of poor quality paint with poor adhesion and elasticity.

b) Application of paint without the surface being primed.

c) Application of a very thin layer or too diluted paint.

SOLUTION: The following recoating process is recommended:

Step 1: Remove loose materials and / or all paint using a knife or stiff brush.

Step 2: Prime the surface with NEOPAL PRIMER.

Step 3: Apply two coats of the high quality emulsion paint SUPER NEOPAL.

Gently rubbing the surface, the paint comes up in the hand

Gently rubbing the surface, the paint comes up in the hand. What has happened?

CAUSE: Use of poor quality paint (lime, watercolour, glue or mixing such materials with plastic paint).

SOLUTION: The following recoating process is recommended:

Step 1: Remove previous paint, where possible.

Step2: Sand the surface.

Step 3: Prime the surface with NEOPAL PRIMER.

Step 4: Apply two coats of high quality emulsion paint SUPER NEOPAL.

The paint is peeling

In various points of the painted surface, paint is peeling. What has happened?

CAUSE: Poor adhesion caused by:

a) Application of paint on glossy surface where undiluted primer has been used.

b) Use of poor quality paint.

c) Insufficient surface preparation (powder residue, oil, and mold).

d) Accumulated moisture within the interior wall which exits through its pores.

e) Priming with poor quality primer.

SOLUTION: If the cause of poor adhesion is moisture, causes should be identified and repaired. Having solved the problem of moisture, the following recoating process is recommended:

Step 1: Remove husked paint in the surface with a knife, stiff brush or sandpaper.

Step2: Prime the surface with NEOPAL PRIMER with the proper dilution (so that the surface does not shine at all).

Step 3: Apply two coats of high quality emulsion paint SUPER NEOPAL.

Colour presents different shades after its application

In the coated surface colour presents different shades after its application. What has happened?

Reason: a) Uneven colour spreading because of the incorrect application (a layer of roller crosses with the previous one during a time period that the first layer is not sufficiently dry).

b) Surfaces which are not properly primed.

c) Surfaces with different porosity in places.

d) Excessive dilution of paint.

e) Shade comes out of the machine and presents problems in the dispersion of pigments, due to excessive amounts of them (flotation).

SOLUTION: Repainting the surface in two coats of high quality emulsion paint SUPER NEOPAL with the proposed dilution. The application of paint on the surface has to be continuous and should not be interrupted for a long time.

Paint did not cover the surface

After painting, points are observed that paint has not covered them properly. What has happened?

CAUSE: a) Poor quality paint.

b) Excessive thinning of paint.

c) Application of a bold colour shade (red, yellow, orange) which is made of a transparent base with pigments (organic pigments) and low opacity (in this case one more coat or coats are recommended).

d) Use of poor quality brush or roller.

SOLUTION: Recoating with the high quality emulsion paint SUPER NEOPAL, with proper dilution according to the use guides, as appropriate for each hue number of layers

The wall turns colour when washed

The wall turns colour when washed

What has happened?

CAUSE: a) Use of poor quality paint.

b) Application of paint in conditions different from those proposed (temperature, humidity, thinning, coating thickness).

c) Use of a too hard friction agent (e.g., a wire brush).

d) The surface is washed before the complete drying of the paint.

e) Use of very strong detergent.

SOLUTION: Recoating the surface with high quality paint SUPER NEOPAL. The surface must be allowed to dry completely before repainting it. The washing of the surface must be made with a sponge or cloth and mild detergent.

Putty is obvious in the painted surfaces

What has happened?

CAUSES:

a) puttied surface which has not been primed.

b) Use of low opacity paint

c) Bad stucco application, non-abrasive surface

e) Excessive thinning of paint

SOLUTION: The following recoating process is recommended:

Step 1: Prime the surface with NEOPAL PRIMER

Step 2: Apply two coats of high quality emulsion paint SUPER NEOPAL

The relief showed no effect

Surfaces painted with RELIEF did not experience the relief effect. What has happened?

CAUSE: a) Use of inappropriate roller

b) Excessive dilution of paint

c) Use of poor quality paint

d) Application conditions are different from those suggested eg High temperatures in the application

SOLUTION: Repainting the surface with the paint NEOPAL RELIEF by VIVECHROM. Undiluted. Application of NEOPAL RELIEF PAINT with special roller of good quality

The painted surface presented bloating

The painted surface presented bloating. What has happened?

CAUSE: Lack of adhesion, locally, caused by:

a) substrate at a temperature exceeding 35 degrees Celsius.

b) Accumulated moisture within the wall (e.g. pipe leak), which exits through the pores, causing paint bloating.

c) Incoming moisture from the outside (roof, ground with a high humidity, grass etc).

d) Painting a wet surface.

e) Create limpets of different size because of poorly “slaked” lime or shoddy plaster.

SOLUTION: If the cause of the problem is the humidity, reasons should be identified and repaired using appropriate materials. Afterwards the following recoating process is recommended:

Step 1: Rub the surface.

Step 2: Fill with acrylic stucco STOCOCRYL.

Step 3: Prime the surface with NEOPAL PRIMER.

Step 4: Apply two layers of high quality emulsion paint SUPER NEOPAL.

* The repainting should be done when the residual moisture on the surface is minimal (May to October).

Yellowness or stains on walls

The walls show yellowing or stains. What has happened?

REASON:

a) Surfaces are close to sources of heat or poorly ventilated.

b) Accumulated moisture

c) Surfaces that come into contact with water vapor (kitchen, bathroom, etc.)

d) Smoking areas where nicotine is concentrated.

SOLUTION:

In case that the cause of the problem is humidity, reasons should be examined and cured using the appropriate materials.

Then the following recoating process is recommended.

Step 1: Wash the surface with the FUNGICIDE CLEANER by VIVECHROM.

Step 2: Apply the acrylic substrate VIVEDUR BLOCK, which is indicated for blocking yellowing, smoke and blackness.

Step 3: Apply two coats of high emulsion paint SUPER NEOPAL.

After painting small holes appear

The surface shows craters (small holes) after painting. What has happened?

REASON:

a) Vigorous agitation of half-filled pack.

b) Use of poor quality paint (no antifoam).

c) Very fast application of paint, especially with roller.

d) Many layers of roller or brush on the same spot of the surface.

e) Application of satin paint on extremely porous and not primed surface.

f) Very fast drying due to high temperatures.

g) Inadequate application tools.

SOLUTION:

The following recoating process is recommended:

Step 1: Rub the surface.

Step 2: Prime the surface, where appropriate, with NEOPAL PRIMER.

Deep horizontal cracks in the painted surface

The painted surface presented deep horizontal cracks. What has happened?

REASON:

a) Application of paint in a very thickly, usually fairly porous surface.

b) Application in low temperatures in combination with a very thick layer of paint.

c) Low quality paint.

SOLUTION:

The following recoating process is recommended:

Case A: If the problem is severe:

Step 1: Rub the surface.

Step 2: Fill with acrylic stucco STOCOCRYL (a thick and a thin coat).

Step 3: Prime the surface with NEOPAL PRIMER.

Step 4: Apply two coats of high quality emulsion paint SUPER NEOPAL.

Case B: If the problem is mild:

Step 1: Rub the surface.

Step 2: Fill with acrylic stucco STOCOCRYL.

Step 3: Prime the surface with NEOPAL PRIMER.

Step 4: Apply one coat of high quality emulsion paint SUPER NEOPAL.

Signs of roller or brush in the painted surface

REASON:

a) Use of poor quality paint

b) During the surface painting, recoating is done in some parts where the surface has not dried sufficiently.

c) Many layers of roller or brush on the same spot of the surface.

d) Use of poor quality brush or roller.

e) Use of low opacity paint.

SOLUTION:

The following recoating process is recommended:

Step 1: Rub the surface.

Step 2: Prime the surface with NEOPAL PRIMER.

Step 3: Apply two coats of high emulsion paint SUPER NEOPAL.