What is the difference between interior wall paint and exterior wall paint

The differences between interior wall paint and exterior wall paint are as follows:

Interior wall paint is the latex paint used for general decoration. Latex paint is an emulsion coating, which is divided into two categories: polyvinyl acetate emulsion and acrylic emulsion according to the different substrates. Latex paint uses water as a diluent, which is a kind of paint that is convenient for construction, safe, washable and breathable, and it can be blended with different colors according to different color schemes.

Types: water-based interior wall paint, oil-based interior wall paint, dry powder interior wall paint, is a water-based paint, mainly composed of water, emulsion, pigment, filler, additives five components.

Exterior wall paint is used to paint the exterior wall of the building, so one of the most important indicators is the resistance to ultraviolet radiation, which is required to achieve long-term irradiation without discoloration. Since 2013, energy-saving and environmentally friendly liquid stone water-based coatings have attracted more and more attention. Some exterior wall coatings also require water resistance and self-cleaning.

The paint film should be hard and smooth, and the dirt will be washed off. Exterior paint can be used for interior painting because it is also water resistant; However, interior wall paint does not have the function of sun protection, so interior wall paint cannot be used as exterior wall paint.

Generally speaking, the particles of the exterior wall are relatively coarse, and it is not good for large-scale households.

On the other hand.

Coatings are divided into three categories: thin coatings, thick coatings and multilayer coatings according to the thickness of the coating film and the composition of the coating.

Thin coatings include water-based thin coatings, synthetic resin emulsion thin coatings, solvent-based (including oil-based) thin coatings and inorganic thin coatings, of which solvent-based thin coatings are commonly known as paints.

Thick coatings include synthetic resin emulsion thick coatings, synthetic resin emulsion sand wall coatings, synthetic resin emulsion light thick coatings and inorganic thick coatings. Among them, the lightweight thick coatings include perlite powder thick coatings, polystyrene foam particle thick coatings and vermiculite thick coatings.

Laminated coatings include cement-based laminated coatings, synthetic resin emulsion laminated coatings, silica sol-based laminated coatings and reaction-curing synthetic resin emulsion laminated coatings.

According to the different parts of the coatings, they are divided into exterior wall coatings, interior wall coatings and ceiling coatings. Interior wall paint should not be used on exterior walls, and exterior wall paint should not be used on interior walls. Some interior paints can also be used as headliner paints, but headliner paints are not suitable as interior wall paints.

Paints that do not indicate the parts of use can be used on exterior walls, interior walls, and ceilings. If it is indicated for internal use, it can only be used for interior walls and ceilings, and it is indicated that it should be used for external walls.

Someone asked earlier if exterior paint could be used for interior walls.

This is not absolute, but choose a big brand, because the formaldehyde and other harmful substances on the exterior walls are higher than the interior walls. Some have been marked with both interior and exterior walls, there are many varieties of coatings, different names, even if the same variety, due to different production plants, its construction methods are also different, for this paint construction must be seen clearly before the product description, according to the construction steps and requirements on the description to paint.

According to the different parts of the coatings, they are divided into exterior wall coatings, interior wall coatings and ceiling coatings. Interior wall paint should not be used on exterior walls, and exterior wall paint should not be used on interior walls. Some interior paints can also be used as headliner paints, but headliner paints are not suitable as interior wall paints.

Read the product description clearly, and finish it according to the construction steps and requirements on the description. The paint on the part of the use can be used for exterior walls, interior walls, and ceilings. If it is indicated for internal use, it can only be used for interior walls and ceilings, and it is indicated that it should be used for external walls.

The main differences are:

1. Exterior wall: anti-aging, maintain color, high hiding power but will not consider the formaldehyde content too much, usually add formaldehyde anticorrosive agent. (Because the national standard does not require formaldehyde-containing materials to be banned on exterior walls), there are also products that use alcohol ether solvents (many times more carcinogenic than formaldehyde).

2. Interior wall: mainly consider economic and environmental protection, whiteness, high hiding power, good hand feel and scrubbing resistance. Formaldehyde-containing materials and other materials prohibited for interior decoration are not allowed.

3. Interior wall paint refers to the wall paint used for interior decoration and decoration.

4. Exterior wall paint refers to the wall paint used for outdoor decoration.

5. Due to the difference between these two types of coatings in environmental protection requirements and physical and chemical properties, they cannot be replaced casually to avoid quality problems.

6. Coatings are often exposed to some toxic compounds, which will cause certain toxic effects on the environment and human health.

The differences are as follows: 1. The characteristics are different.

Interior wall coatings: alkali resistance, good water resistance, and not easy to powder.

Exterior wall coatings: good weather resistance and stain resistance.

2. The role is different.

Interior wall paints: colorful, delicate and coordinated.

Exterior paints: good decorative.

3. The difficulty of construction is different.

Interior wall paint: easy to apply and good recoatability.

Exterior wall coatings: high elasticity requirements, outdoor operations.

4. The effect of traits is different.

Interior wall coatings: good air permeability, moisture absorption and moisture wicking.

Exterior wall paint grip Qiaoqin: good water resistance 5, good mildew resistance.

5. **Different.

Interior wall paint: Because in the inside of the building, there is not so much wind and sun, **cheap.

Exterior paints: need to withstand wind and sun, ** more expensive than interior wall paints. Wide vertical.

The main function of interior wall paint is to decorate and protect the wall, making it beautiful and tidy. The interior wall paint color is suitable for elegant and soft to create a comfortable living environment. The main function of exterior wall coating is to decorate and protect the exterior wall of the building, and the destruction of the field makes the appearance of the building beautiful and tidy, so as to achieve the purpose of beautifying the urban environment.

At the same time, exterior wall coatings can also play a role in protecting the exterior wall of the building and prolonging its service life. Let's take a look at itDifference Between Exterior Wall Paint and Interior Wall Paint

First, the characteristics of interior wall coatings.

1. Good water resistance and scrubbing resistance.

2. Rich color, delicate coating and good hiding power.

3. It has a certain degree of air permeability, and can be constructed on a relatively humid substrate without the occurrence of disadvantages such as coating bulging.

Second, the characteristics of exterior wall coatings.

1. Good stain resistance: due to the large differences in environmental conditions in different regions of China, for some cities with developed heavy industry and mining, due to the large amount of dust and other suspended substances in the atmosphere, the easily stained coating will lose its original decorative effect, thereby affecting the appearance of the building. Therefore, exterior wall coatings should have good stain resistance, so that the coating is not easy to be polluted or easy to clean off after contamination.

2. Good weather resistance: exterior wall coatings, because the coating is exposed to the atmosphere, must withstand the effects of wind, sun, salt spray corrosion, rain, cold and heat changes, etc., under the long-term repeated action of these external natural environments, the coating is prone to cracking, chalking, peeling, discoloration and other phenomena, so that the coating loses its original decorative protection function. Therefore, it is required that the coating of the exterior wall should not be damaged within the specified service life.

3. Good mildew resistance: exterior wall paint finishes are prone to mildew in a humid environment. Therefore, it is required that the coating film inhibit the growth of mold and algae.

3. In addition, because the interior wall coating is in the building, there is not so much wind and sun, so the quality requirements of the exterior wall and the interior wall coating are very different.

Fourth, in terms of internal wall coatings, interior wall coatings are naturally much cheaper than exterior wall paints. If consumers choose interior wall paint, in addition to the conventional performance, it is recommended to pay more attention to environmental performance.

The above is a detailed answer to the difference between exterior wall paint and interior wall paint, I don't know if you are satisfied with our introduction.

Exterior wall paint and interior wall paint are two types of paint that many people will come into contact with when decorating, so what is the difference between exterior wall paint and interior wall paint? Next, let's introduce it to you.

1. Ultraviolet resistance requirements.

When it comes to interior and exterior paints, the most significant difference between them is the environment in which they are used. Exterior paints are generally used on the surface of buildings, which have a strong UV resistance and can withstand long-term sun exposure. As for interior wall paints, they are generally used on the walls of the living room, and the UV resistance is not very good.

2. Friction resistance and water resistance.

Because exterior paint is used on the surface of outdoor buildings, it must be resistant to the sun and rain, so it is very resistant to water. For interior wall paint, the aesthetic requirements are relatively high, so the wear resistance is better.

3. Use differently.

Interior wall paints cannot be used as exterior paints because they have different properties. For example, exterior paints have very good light fastness, while interior paints do not. If mixed, it will degrade its performance.

However, exterior wall paint can be used as an interior wall paint because its performance meets the requirements of use in all aspects.

The general characteristics of interior wall coatings are: (1) rich color, delicate and coordinated, (2) alkali resistance, good water resistance, and not easy to powder (3) good air permeability, moisture absorption and moisture drainage (4) easy to paint, good recoating.

Interior paints are different because of the different gloss selected, and there are certain differences in their functions

Matte paint: The paint has non-toxic, tasteless, high hiding power, good scrubbing resistance, strong adhesion, good alkali resistance, safe and environmentally friendly construction, convenient construction, and good leveling.

Mercerized paint: the coating film is smooth and smooth, the texture is delicate, with silk luster, high hiding power, strong adhesion, excellent antibacterial and anti-mildew properties, excellent water and alkali resistance, the coating film can be washed, and the luster is long-lasting.

Bright paint: pure color, soft luster, tough paint film, strong adhesion, fast drying, mildew and water resistance, good weather resistance, high hiding power.

High-gloss paint: It has excellent hiding power, strong and beautiful, bright as porcelain, high adhesion, high anti-mildew and antibacterial performance, resistant to scrubbing, durable and not easy to peel off, tough and firm.

Exterior wall coatings are used outdoors, and the general characteristics are: 1. Good decoration 2, good weather resistance 3, good stain resistance 4, good water resistance 5, good mildew resistance 6, high elasticity requirements and other characteristics requirements.

Exterior paints also have different gloss, but the function is not the same as interior paints:

Matte paint: the product has weather resistance, good UV resistance, fast drying, tough coating film, strong hiding power, mildew resistance, waterproof, and fashionable color.

Mercerized paint: the coating film is smooth and smooth, the texture is delicate, it has silk luster, good ultraviolet resistance, strong stain resistance and excellent adhesion, and it is easy to wait for mildew and algae, good leveling, and convenient construction.

Varnish: high gloss, good UV resistance, strong adhesion and stain resistance, mildew and algae-proof.

High-gloss paint: It has good color retention, anti-chalking, high weather resistance, strong hiding power, high adhesion, high anti-mildew and antibacterial performance, rain erosion resistance, no discoloration, and bright as porcelain.

Interior and exterior wall paints are all paints painted on the walls, but also because one side is facing the interior and the other side is facing the outside, from the perspective of function, there is a fundamental difference between the interior and exterior walls. Exterior wall paint is used to paint the façade of buildings, so an important indicator is the resistance to ultraviolet radiation, which is required to achieve long-term irradiation without discoloration. Ficot low-carbon energy-saving thermal insulation exterior wall coating, can be limited isolation from the sun's radiation, different from the traditional thermal insulation principle, can reflect heat, rapid heat dissipation, in the hot summer, its surface feel is also cool, conducive to construction.

Exterior wall coatings are also required to have water resistance and self-cleaning. The paint film is smooth, and the dirt will fall off as soon as it is washed. Therefore, sometimes exterior wall paint can be used for interior wall painting because of its water resistance.

However, interior wall paint does not have the function of sun protection, so interior wall paint cannot be used as exterior wall paint. The advantage of interior wall paint is that the construction is simple, there are a variety of tones, it is advisable to decorate various decorations on it, the decorative effect is simple and generous, and it is a widely used interior wall decoration material. The home cement wall is mainly used for interior wall coating, first with putty priming, polishing and smoothing, and then using interior wall paint, the well-known brand of interior wall paint - Chenyang.

Water paint is loved by more and more people for its environmental protection and pollution-free advantages. At present, Chenyang water paint nationwide.

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