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Solutions to the common problems of wall paint

Time：2014-07-29　Click：

Wall paint flow causes hanging method and solution

Causes: excessive dilution paint paint by water; a construction too thick; roller, sub dip too much paint drying speed is too slow

Solution: the eradication of the affected film; improving the construction technology, to ensure the film once construction is not too thick; selection of suitable diluents; accelerate the drying rate; not excessive dilution.

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The cause of shrinkage of wall paint film and solution

Causes: grease, wax polish or silicon resin wall base; the surface layer and the bottom layer system is not compatible, such as water soluble paint for high gloss paint on oil.

Solution: the eradication of the affected film; clean and polish the surface and then re coating.

The reason of wall paint pinhole bubble and solving methods

Causes: the basement wall or use putty too loose and porous, containing air; basement wall surface temperature is too high or brushing sharply after the heating and drying; the film is too thick or wet weight coating; spraying gun is set incorrectly, the pressure is too big; the use of inferior wool roller; brush when the brush move too fast; coating of paint is not by vigorous stirring defoaming.

Solution: to be dry after grinding affected film, re coating; ensure the film once construction is not too thick and dry before using the primer coating; sealing suitable solid wall basement; the use of high-quality in short hair roller; set the correct spray gun and control brush speed; if the paint is severe after mixing should static defoaming after brushing.

Wall paint graining: Causes and Solutions

Causes: mixing or dilution paint, water quality is excellent to use or not use supporting diluent; have incompatible substances or impurities are mixed with paint; construction environment dirty, dusty drift down in the paint or paint film; construction tools unclean or of poor quality, easy hair falling; wall basement unclean, dust and so not removed; construction tools not cleaned in time, paint dry on the construction tools; paint had frozen or stored at very high temperatures of gellan gum; paint once after opening the cover to storage; paint storage for too long, hard precipitation is not easy to be whipped.

Solution: to paint is dry, smooth of polishing with sandpaper after recoating; supporting the use of thinner, not doping; keep the construction environment and the basement wall cleaning; the use of clean high-quality construction tools, construction clearance and timely cleaning is finished; the paint required to maintain in a cool dry place, avoid cold and heat, open the tank as soon as possible after use; when necessary, the use of mechanical stirring; latex paint tank surface crust should be thoroughly remove crusts; curing agent of polyurethane wood paint off cap after use, the unused portion should be sealed well, prevent the resulting particles glue after moisture absorption.

The reason of wall paint gloss lost and solving methods

Causes: the construction process and to be dry humidity is too big; the basement wall is too loose; water excessive dilution or improper use diluent; basement wall surface is clean, grease exist; when spraying a dry jet ", namely the paint mist spray to dry on the surface, or mist reach the plane has been doing.

Solution: make sure to dry process construction and environmental conditions to meet the construction requirements; ensure the basement wall clean; ensure appropriate dilution ratio and supporting the use of thinner, not excessive water latex paint construction; the use of primer seal suitable solid wall basement; spray pressure and spray gun when the attention and the basement wall distance, the surrounding well baffle, prevent paint fog pollution has completed part; if need to use putty, should choose qualified putty.

Metope paint cracking reasons and solving methods

Causes: a brushing over thick or wet weight coating; basement wall is too loose or rough; construction when the temperature is too low; the paint system is not correct, primer and topcoat is not complete.

Solution: the eradication of the affected film; ensure the film once construction is not too thick; ensure that the first layer of paint dry before coating; when necessary, with appropriate primer sealing solid wall basement; for interior wall substrate roughness, recommend the use of flexibility of the product; the basement wall temperature is lower than 5 DEG C, not the construction of wall emulsioni paint; the correct selection of paint system; such as the need for scraping putty, shall ensure that after curing solid, such as the construction of furniture paint don't use water-based putty.

Cause metope lacquer not dry or slow drying and solving methods

Causes: wall paint is mixed in the oil, the use of improper or diluent; moisture content of wall basement high or there exist such as the oil contamination; a construction paint layer too thick or wet weight coated; construction and dry process high humidity, poor ventilation; low temperature construction; double component paint less with or without curing agent.

Solution: the eradication of the affected film; ensure the film once construction is not too thick; ensure that the first layer of paint dry before coating; ensure the construction wall basement and environmental conditions to meet construction requirements; two component paint must be in the correct proportion of adding curing agent; wet weather can not keep good ventilation in construction; after construction.

The reason of wall paint yellowing and solving methods

Causes: interior wall paint for outdoor; the film by alkaline effect; sulphide or other chemical substances influence; latex paint by polyurethane floor furniture paint volatilization effect affected by high temperature;

Solution: make sure that the weathering properties of good products used outdoors; ensure the basement wall conditions meet the construction requirements; the special industrial environment should use chemical resistant ability of the product; be in polyurethane floor furniture paint dry before brushing latex paint; high temperature conditions should use special high temperature paint.

Paint the walls appear stains: Causes and Solutions

Causes: pollution faster than paint stain resistance; building structure makes rainwater accumulation is easy to wash the dust, and flow to the wall.

Solution: clean the wall; the selection of anti fouling ability stronger products; change the design of building structures, in the window to build the dripping eave, roof parapet does inward slope.

Paint the walls appear watermark: Causes and Solutions

Causes: the moisture content is too high, Water Leakage basement wall; seepage phenomenon during the construction of environmental humidity is too high.

Solution: make sure that the basement wall dry; ensure no leakage, wall seepage; ensure all kinds of conditions when the construction complies with the requirements of (such as water wall base rate should be less than 10%, the relative humidity should be less than 85%); when necessary, choose suitable primer sealing solid wall basement

The reason of wall paint long mildew algae and Solutions

Causes: the accumulation of nutrients in the film surface with dust, especially in damp place is conducive to fungal or algal growth; the use of wall painting Fangmei shortage of algae resistance.

Solution: use appropriate samaric water or bleach cleaning long mildew algae; if the environment is particularly bad, should paint used specially formulated, appropriately increase the mildew algae resistant ability; external available water cannons flush.

Wall paint hiding bad causes and Solutions

Causes: the bottom material and finish color contrasts markedly; the paint is excessive dilution, paint film is too thin; wall basement for the convex and concave convex surface, usually the film too thin; bright red and yellow and dark color part of colourful color (such as blue, red, yellow, orange and so on) wall paint itself hiding power difference.

Solution: use and finish color is similar, but slightly shallow middle paint or primer; gray series primer to use ICI; control the dilution ratio, guarantee the dilution of less than 5%; the use of the drum good construction effect on substrate; certain colors or wall should be appropriate to increase the finishing coat brush layers.

Wall paint peeling reasons and Solutions

Causes: the basement wall treatment is not clean, if oil exist in the basement wall; water content is too high, or salt precipitation; wall basement serious powder or polishing treatment after not dust; primer selection and wall basement can not adapt to the.

Solution: the eradication of all affected and the loss of adhesion of paint film, clean the wall, to be dry; if the wall basement serious powder, then application of osmotic primer suitable cementing on it, such as primer series Dulux; follow the construction norms, make wall basement waterproof layer, ensure the basement wall conditions meet the construction requirements; selection of qualified wall putty putty, N type inner wall suggested the use of water within the wall type, suggested the use of P type putty putty construction should be the standard rate; maintenance to alkaline, aqueous.

The reason of wall paint efflorescence and solving methods

Caues: Wall basement water, alkali or high salt content, moisture evaporation and film with saline in the bottom or surface precipitation; waterproof treatment civil time difference, resulting in rain water through the cracks or unpainted base into the wall on the other side of the substrate, the diffusion will bring out the saline.

Solution: the eradication of powder layer; the appropriate choice of paint

Peeling wall paint blistering causes and solutions

Causes: wall base water is too high, when spread out the water pressure to the film muster, usually occurs in the use of the products of poor ventilation wall; waterproofing civil when poor, leading to rain or moisture through the cracks lacquered base surface into the substrate on the other side of the wall, or leaks, damage film diffusion; wall base putty plaster powder, talcum powder, Flying powder mainly caused by water expansion, especially in an exterior wall.
Workaround: elimination of all blistering, peeling part, if the base wall putty due to problems caused by the eradication of putty and scrape with a suitable putty weight; follow construction norms, good waterproofing basement walls. Before the construction of the basement wall crack repair, to ensure compliance with the moisture content of the base wall construction requirements, if necessary, increase the paint in the local area to prevent rain water infiltration.
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Uneven gloss wall paint causes and solutions

Causes: uneven wall substrate porosity; uneven primer, paint brush thickness; topical application exists when dry spray coating; the same wall using different construction tools; wall using different batches of the same product; no wet paint when connecting seams brush marks caused significant gap that has failed to effectively "wet contact"; wall substrate temperature is too high, or paint drying too fast.
Workaround: Use a primer, especially at the local repair must then brushing paint primer Shang Hao together with the surrounding; whether primer or topcoat, brushing each layer thickness to ensure consistent and seamless brush; ensuring use a unified construction tools. In the same side of the wall using the same batch of products in the sub-region to ensure the wet grid access; ensure construction conditions, construction techniques meet the construction requirements; selecting a suitable diluent to adjust according to different climatic drying time of the paint
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Wall paint chalking causes and solutions

Causes: Join the construction of excess water dilution, resulting thin film; wall base alkaline (PH value greater than 710) is too high, the film is destroyed. Usually occurs in the new wall is not dry; the wall base and humidity is too high, recoat time is short, poor ventilation; substrate temperature is too low during the construction of the wall; the wall substrate (such as backing putty) is too loose; Tu when the brush is not fully formed, generally 7 days after application to complete a film; the interior wall paint for outdoor use.
Workaround: elimination of powder layer; re made of high quality paint to follow construction specifications, do not over-diluted with water; the need to use the appropriate primer if necessary sealing was performed on the wall base treatment to improve paint adhesion. Ensure compliance with the construction requirements of the construction environment.
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