Best to paint the microwave indoors and how to choose the composition
A kitchen appliance, if the operating and maintenance conditions are not respected, breaks down due to wear and tear on the camera. Cracks, peeling paint, rust appear on its surface. If the coating is restored, the microwave oven will last for several more years. How can you paint the inside of the microwave so it's still safe to use and doesn't need additional repairs? Let's watch it below.
The main causes of deterioration of the coating inside the microwave
The microwave oven chamber can be made of enameled steel, ceramic, stainless steel.Each has its own advantages and disadvantages, which are revealed during operation.
In budget microwave ovens, the cameras have an enamel surface. Enamel can withstand extreme temperatures, humidity, acid vapors for a certain period. Over time, the paint begins to peel.Mechanical damage when cleaning dirt accelerates the process of destruction of the coating. You can't use a rusty stove.
Ceramic
The ceramic coating of the interior of the microwave oven is durable, as it is not affected by steam, acids, alkalis, high heating. The disadvantage of ceramic is not the ease of maintenance. From the impact, cracks appear on it, which cannot be repaired.
Stainless steel
The stainless steel chamber has excellent performance characteristics. Its disadvantage is that it is difficult to remove stuck-on fat. It is necessary to use special detergents and brushes. Over time, scratches become visible, in which dirt accumulates. It is not possible to polish the surface again.
How to determine the quality of paint
It is possible to restore the enameled steel surface of the microwave oven chamber to its original shape. For painting use special coloring compositions developed for these purposes.
Security
During baking, substances hazardous to human health should not evaporate from the paint layer.
Moisture resistance
The film that forms during the polymerization must be water-repellent.
Heat resistance
The chemical components of the coloring composition must withstand temperature drops from +10 to +200 degrees.
Color
In terms of color, the paint should match the original color of the upholstery or be in harmony with the color of the bodywork.
Adapted formulas
The coloring compositions which can be used for the repair of microwave ovens are produced on the basis of polymer, organic or carbon.
Acrylic primer
Acrylic-based primer is an affordable product for restoring microwave ovens. The anti-corrosive agent forms a solid, resistant to temperature fluctuations, vaporization, adhesion to a metal surface, not damaged by rust.
Water-based composition, safe to work with, does not have an unpleasant odor, dries quickly.
Food Grade Organic Enamel
Edible epoxy or organosilicon based enamels are used to paint the camera. Organic paints protect metal surfaces from corrosion and do not emit harmful substances. Epoxy enamel contains a suspension of epoxy resin and pigment and a hardener. Organosilicon paint is a mixture of pigments, fillers in a modified organosilicon resin.
Coatings made of organic enamels withstand the effects of an aggressive environment up to +200 degrees, while maintaining anti-corrosion properties. If the paint technology is observed, the protective qualities remain for 3-5 years. Lack of glazes - the impossibility of repainting in a different color due to poor adhesion. Epoxy enamel is flammable and toxic during painting. When performing painting work, it is necessary to observe fire safety requirements, protect the skin and respiratory tract.
Electrically conductive enamel
Conductive substrates have excellent adhesion to metals, ceramics and plastics.
The coating obtained has:
- high strength;
- anti corrosion;
- shielding;
- antistatic properties.
For domestic use, Belgian Zinga zinc-based paint is commercially available. The coating is ready to use. To make the work surface viscous, use the solvent offered in the kit for Zinga.For safety reasons, it is necessary to have protective equipment against the vapors of harmful solvents. The minimum coating warranty period is 10 years.
Shungite
Shungite-based compositions are a kind of electrically conductive enamels. The predominant component and pigment is shungite, a rock containing a special form of carbon. The mineral is non-flammable, environmentally friendly.
Shungite based oil paint gives a deep black finish with a mirror shine.
How to paint correctly
The dyeing method, regardless of the type of coating, has a general scheme that must be followed.
Cleaning
The degree and method of cleaning depends on the coloring composition:
- Acrylic primer: removal of grease, mineral deposits, paint. Not used on rusty surfaces.
- Food Grade Enamels: Removing dirt, old paint coating, rusting with dry abrasive, dusting.
- Electrically conductive paints: cleaning dust, dirt, paint, loose rust. At the initial stage of corrosion, it does not require careful grinding.
- Shungite paint: preparation similar to electrically conductive compounds.
The first step is to remove food deposits using hot water with detergent and a sponge. After drying, clean old paint and corroded areas using abrasive tools. To completely remove dust, the camera can be vacuumed.
Degreasing
To degrease the surface, use the solvent specified in the instructions for painting.
It could be :
- ethanol;
- solvent;
- xylene;
- other options.
The prepared surface should be painted within 24 hours.
Hole repair
Masking tape is used to cover the ventilation grille, the parts that cannot be painted.
Paint
Given the low paint surface, a brush (food, conductive, shungite paints) and a spray can (acrylic primer) are used to apply the paint. Before use, the paint is diluted to a working viscosity, except for aerosols, stirring well. Painting starts with the wall opposite the door, then the top, side walls and bottom.
A small amount of paint is grabbed with a brush, carefully spreading it over the surface so that there is no sag. Spray paint can be moved in a wavy pattern to achieve an even coating.
Food grade glazes and acrylic primer are applied in 2 coats with intermediate drying. Electrically conductive shungite paints are painted in one coat. After drying, remove the protective insulation.
Common Mistakes
The main mistakes made when painting a microwave chamber:
- incomplete removal of the old coating;
- low-quality rust removal;
- bad dusting.
Steel surfaces after abrasive treatment and dusting must be immediately degreased.
Additional tips and tricks
A quality coating cannot be achieved without the right tool. Flat brushes with a width of 38 to 50 millimeters are used; panel brushes are used to paint the corners. Before use, new brushes are washed in soapy water to remove dust and dried. The brush is dipped into a pot of paint to the middle of the pile, shaking off excess paint in the pot.
Rules of maintenance and operation
After each use of the microwave, the camera should be washed with a sponge and detergent and wiped with a microfiber cloth.Dry completely with the door ajar.Carbon deposits formed at the bottom of the chamber are removed after treatment with a degreasing agent. The use of cleaning powders, metal mesh is not allowed.