Painting Tips – Interior

Blocking

BlockingBLOCKING . . .painted surfaces sticking together when pressed against the other, such as doors and windows.

BLOCKING PROBABLE CAUSES . . . insufficient drying time before pressing the newly painted surfaces of doors and windows together. Lack of adequate ventilation will lengthen drying time. Using slow drying oil based paints. Excessive paint. Recoat before first coat is dry.

BLOCKING SOLUTIONS . . . allow the proper drying time per label directions. Free windows and doors from sticking before painting. Door and window jams should be properly adjusted for free and smooth operation. Persistent blocking or sticking can be relieved with talcum powder.

PRIMERS & INTERIOR FINISHES.. . Priming is essential for better adhesion, sheen uniformity, mildew control and durability. Select a top quality interior paint in the color and sheen of your choice.

Burnishing

BurnishingBURNISHING . . . spots of increased sheen where paint is rubbed. Even a fingernail stroke can burnish.

BURNISHING PROBABLE CAUSES . . . selection of a flat finish for areas subject to heavy wear and soiling. Repeated spot washings using abrasive cleansing powders rather than liquid detergents. Furniture or other objects rubbing against walls or other painted surfaces. Dark colors show more.

BURNISHING SOLUTIONS . . . paint high traffic areas with high quality, washable semi-gloss or gloss finishes. Do not clean with abrasive cleansers. Wash with nonabrasive detergents with a sponge or soft cloth and rinse with clean water. Gloss finishes are easier to clean and resist soil.

PRIMERS & INTERIOR FINISHES . . . Priming is essential for better adhesion, sheen uniformity, mildew control and durability. Select a top quality interior paint in the color and sheen of your choice.

Caulking Failures

CaulkingCAULKING FAILURES . . . loss of the protective moisture seal due to the loss of adhesion and flexibility.

CAULKING FAILURES CAUSES . . . Filling too large an opening. Wrong type of caulk for particular applications and exposure. Aged non-acrylic caulks that dry out lose their adhesion and flexibility. Considerable movement or prolonged contact with water will need special caulks/sealants.

CAULKING SOLUTIONS . . . select a caulk that best serves your situation. Apply according to directions. For most interior painting, 100% acrylic caulks, are recommended. They will seal cracks and adhere to most surfaces, even when moisture is present. Don’t paint over silicone caulks.

PRIMERS & INTERIOR FINISHES .. . Priming is essential for better adhesion, sheen uniformity, mildew control and durability. Select a top quality interior paint in the color and sheen of your choice.

Coalescence Void

CoalesenceCOALESCENCE VOID . . . paint not forming a continuous film when surface temperature is cold, usually below 50° F.

COALESCENCE VOID CAUSES . . . painting when the air or surface temperatures are too cold for the paint to form a film. Painting in non-heated areas. Surfaces deeply chilled need a heating period before painting. Surface temperatures must be 50° F or above.

COALESCENCE VOID SOLUTIONS . . . avoid painting interior or exterior surfaces when the temperatures are too cold. Late afternoon painting in unheated areas are vulnerable because the temperature will continue to decrease during the night and prevent proper paint film formation.

PRIMERS & INTERIOR FINISHES . . . Priming is essential for better adhesion, sheen uniformity, mildew control and durability. Select a top quality interior paint in the color and sheen of your choice.

Cracking / Flaking

Cracking/FlakingCRACKING/FLAKING . . . aged paint splitting through at least one coat with flaking occurring in the later stages.

CRACKING/FLAKING CAUSES . . . old oil based paint that loses adhesion, flexibility and becomes hard and brittle. Poor surface preparation. Substrate cracking underneath paint film,e.g. plaster. Over thinning or over spreading paint beyond manufacturer’s recommendations.

CRACKING/FLAKING SOLUTIONS . . . remove all loose paint with a scraper. Sand the surface and feather the edges. Spackle deep scars caused by cracking/flaking of multiple coats of paint and sand. Remove all sanding dust. Spot prime any bare areas.

PRIMERS & INTERIOR FINISHES . . . Priming is essential for better adhesion, sheen uniformity, mildew control and durability. Select a top quality interior paint in the color and sheen of your choice.

Flashing

FlashingFLASHING . . . uneven gloss with shiny or dull spots on painted surfaces.

FLASHING PROBABLE CAUSES . . . improper or no priming of porous surfaces or surfaces with non-uniform porosity. Poor painting techniques. Painting over fresh paint or primer before it’s dry. Uneven film thickness causes poor sheen uniformity. Drying during excessive high/low temperatures.

FLASHING SOLUTIONS . . . always prime new work to make the surface have uniform porosity. Apply the finish coat after proper drying of primer. A new finish coat usually will make the sheen uniform. Always paint from wet to dry and maintain a wet edge to avoid lapping.

PRIMERS & INTERIOR FINISHES . . . Priming is essential for better adhesion, sheen uniformity, mildew control and durability. Select a top quality interior paint in the color and sheen of your choice.

Flow / Leveling Failure

Flow_leveling_failureFLOW/LEVELING FAILURE . . . excessive brush or roller marks causing an unsightly uniform surface.

FLOW/LEVELING PROBABLE CAUSES . . . failures usually are the result of using wrong type or poor quality roller cover brush. Poor painting techniques. Repainting or touching-up partially dried areas brush/roller marks. Painting non-primed surfaces with varying porosity.

FLOW/LEVELING SOLUTIONS . . . proper surface preparation and application with recommended quality roller cover brush. Roller nap length should confirm the paint type being used. High quality brushes will minimize brush marks. Select paint with good flow/leveling characteristics.

PRIMING & INTERIOR FINISHES . . . Priming is essential for better adhesion, sheen uniformity, mildew control and durability. Select a top quality interior paint in the color and sheen of your choice.

Foaming / Cratering

FoamingFOAMING/CRATERING . . . excessive bubbling that doesn’t flow out and leaves craters or depressions in the paint film.

FOAMING/CRATERING CAUSES . . . using a roller cover with incorrect nap length. Painting too soon after shaking. Rolling paint too fast or excessively. Using old paint. Painting over unprimed porous surfaces. Painting when the temperature is too hot, over 90° F.

FOAMING/CRATERING SOLUTIONS . . . properly prime porous surfaces or new work. Use the proper nap length roller cover or a high quality brush. Avoid excessive rolling or brushing. After shaking, allow bubbles to dissipate before painting. Avoid painting when temperatures are above 90ºF.

PRIMERS & INTERIOR FINISHES . . . Priming is essential for better adhesion, sheen uniformity, mildew control and durability. Select a top quality interior paint in the color and sheen of your choice.

Lapping

LappingLAPPING . . . occurs where wet and dry layers overlap during painting. Avoid with paint area management and technique.

LAPPING PROBABLE CAUSES . . . wet and dry layers overlapping. Failure to maintain a wet edge during painting. Painting too large an area at one time. Unprimed porous surfaces. Painting when temperatures are above 90ºF. Inadequate stirring and over thinning.

LAPPING SOLUTIONS . . . another finish coat usually will hide lap marks. Proper priming will help avoid lapping on new work. Always paint from wet to dry and in small sections to keep a wet edge. Plan natural breaks like doors, windows and corners. Temperatures under 90ºF.

PRIMERS & INTERIOR FINISHES . . . Priming is essential for better adhesion, sheen uniformity, mildew control and durability. Select a top quality interior paint in the color and sheen of your choice.

Mildew

MildewMUD CRACKING . . . looks like dried mud with deep irregular cracks in the dry paint film.

MUD CRACKING CAUSES . . . paint is applied excessively making the film too thick for proper curing and drying. Trying to make one thick coat do when two regular coats will give superior performance. Allowing paint to build up in certain areas such as corners.

MUD CRACKING SOLUTIONS . . . remove excessive paint in affected areas by scraping and sanding. Sand smooth and remove sanding dust before repainting. Prime if recommended and recoat with a top quality paint. The uniform spread rate should not exceed the manufacturer’s recommendation.

PRIMERS & INTERIOR FINISHES . . . Priming is essential for better adhesion, sheen uniformity mildew control and durability. Select a top quality interior paint in the color and sheen of your choice.

Mud Cracking

Mud_crackingMUD CRACKING . . . looks like dried mud with deep irregular cracks in the dry paint

MUD CRACKING CAUSES . . . paint is applied excessively making the film too thick for proper curing and drying. Trying to make one thick coat do when two regular coats will give superior performance. Allowing paint to build up in certain areas such as corners.

MUD CRACKING SOLUTIONS . . . remove excessive paint in affected areas by scraping and sanding. Sand smooth and remove sanding dust before repainting. Prime if recommended and recoat with a top quality paint. The uniform spread rate should not exceed the manufacturer’s recommendation.

PRIMERS & INTERIOR FINISHES . . . Priming is essential for better adhesion, sheen uniformity mildew control and durability. Select a top quality interior paint in the color and sheen of your choice.

Picture Framing

Picture_framingPICTURE FRAMING . . . darker color where ceilings, windows, doors and corner areas cut-in with a brush.

PICTURE FRAMING CAUSES . . . improper cutting-in technique using a brush with too much paint and not doing feather-edge brushing. Not maintaining a wet edge by cutting-in too much at one time. Poor roller technique, leaving a wide space between the natural break and the wall.

PICTURE FRAMING SOLUTIONS . . . keep a wet edge and use a feather brush cutting in technique. Roll into the cut-in areas before they’re dry and as close as possible to the natural break. More critical when the temperatures are above 90ºF. Stir periodically to avoid paint thickening.

PRIMERS & INTERIOR FINISHES . . . Priming is essential for better adhesion, sheen uniformity, mildew control and durability. Select a top quality interior paint in the color and sheen of your choice.

Poor Hiding

Poor_hidingPOOR HIDING . . . failure of the finish coat to cover the previous color or a new substrate.

POOR HIDING PROBABLE CAUSES . . . not applying enough paint. Making a severe color change. Painting with the wrong brush or roller. Improper or no priming. Using yellows or clean light colors that don’t hide as well as toned colors. Over thinning the paint.

POOR HIDING SOLUTIONS . . . usually another finish coat will cover the previous color or substrate. Prime dark colors to be covered with lighter colors. Apply the proper amount of paint with recommended brushes or rollers. Use recommended brushing and rolling techniques.

PRIMERS & INTERIOR FINISHES . . . Priming is essential for better adhesion, sheen uniformity, mildew control and durability. Select a top quality interior paint in the color and sheen of your choice.

Print Resistance Failure

Print_resistancePRINT RESISTANCE FAILURE . . . marking of paint from the weight of an object such as a dish on a shelf.

PRINT PROBABLE CAUSES . . . not allowing enough time for the paint to properly dry and cure. Applying the finish coat before the primer has properly dried. Selecting a paint product not the best suited for shelving and cabinet use. Premature placement of excessive weighty objects on shelves.

PRINT RESISTANCE SOLUTIONS .. . allow the full curing time recommendation before putting the surface back into service. The prime coat must dry the recommended time before apply the finish coat. Apply with a uniform spread rate. Use paint products that have the best print resistance.

PRIMERS & INTERIOR FINISHES . . . Priming is essential for better adhesion, sheen uniformity, mildew control and durability. Select a top quality interior paint in the color and sheen of your choice.

Roller Marks

Roller_marksROLLER MARKS . . . a stipple texture pattern from the roller, not desirable or planned.

ROLLER MARKS PROBABLE CAUSES . . . incorrect rolling technique. Frequently, the use of an incorrect roller cover with an excessive nap length. Over loading the roller cover with paint. Failure to spread the paint uniformly. Painting over a slick surface without proper priming.

ROLLER MARKS SOLUTIONS . . . use a quality recommended roller cover with the correct nap length. Make certain the roller is rolling, not sliding. Begin with an upward zigzag stroke in a “M” or “W” pattern and fill in the pattern with parallel strokes without leaving the surface.

PRIMERS & INTERIOR FINISHES . . . Priming is essential for better adhesion, sheen uniformity, mildew control and durability. Select a top quality interior paint in the color and sheen of your choice.

Sagging

SaggingSAGGING . . . paint running down immediately after application leaving an uneven coating appearance.

SAGGING PROBABLE CAUSES . . . application technique and inadequate surface preparation. Over thinned paint. Applying the paint too thickly. Spraying with the gun too close to the surface. Painting when the temperature is too cold or the humidity too high.

SAGGING SOLUTIONS . . . before the paint dries, immediately brush or roll out running paint evenly. Properly prepare the surface, sand glossy areas. Do not thin the paint. Apply uniformly at the paint’s recommended rate. Two proper coats are better than one thick coat.

PRIMERS & INTERIOR FINISHES . . . Priming is essential for better adhesion, sheen uniformity, mildew control and durability. Select a top quality interior paint in the color and sheen of your choice.

Scrubbing Failure

Scrubbing_failureSCRUBBING FAILURE . . . excessive wearing away of the paint film from repeated scrubbings.

SCRUBBING FAILURE CAUSES . . . using an improper, scrubbing technique with abrasive cleansing powder that will burnish and cut through the paint film. Using a flat sheen paint in a gloss sheen area. Scrubbing the paint before it has properly cured.

SCRUBBING FAILURE SOLUTIONS . . . select a paint formulated for repeated scrubbings. Gloss finishes wash easier and resist soil. Wait until the paint is properly cured before any scrubbing, 3 weeks or more. Wash with a sponge or a soft cloth with a liquid detergent.

PRIMERS & INTERIOR FINISHES . . . Priming is essential for better adhesion, sheen uniformity, mildew control and durability. Select a top quality interior paint in the color and sheen of your choice.

Spattering (Roller)

SpatteringSPATTERING . . . a spray of paint droplets from the roller cover as the paint is being applied.

SPATTERING PROBABLE CAUSES . . . economy roller covers will generally spatter more. Overloading the roller cover. Over spreading the paint. Selecting an improper roller cover and nap length for the paint type being applied.

SPATTERING SOLUTIONS . . . use high quality paint and roller covers with proper resiliency to minimize spattering. Avoid overloading the roller cover. Begin with an upward zigzag stroke in a “M” or “W” pattern and fill in the pattern with parallel strokes without leaving the surface.

PRIMERS & INTERIOR FINISHES . . . Priming is essential for better adhesion, sheen uniformity, mildew control and durability. Select a top quality interior paint in the color and sheen of your choice.

Stain Resistance Failure

Resistance_failureSTAIN RESISTANCE FAILURE . . . paint soiling with minimal resistance to the absorption of dirt and stains.

STAIN RESISTANCE CAUSES . . . using a flat paint that has a very porous film and vulnerable to soil by absorbing dirt. Applying paint to unprimed surfaces. Using a flat finish paint in a sheen area such as baths, kitchens, laundry rooms and halls.

STAIN RESISTANCE SOLUTIONS . . . select a paint formulated for heavy duty wear and stain resistance. Priming new surfaces with the proper primer and using a premium quality finish coat will offer the best stain resistance. Wash stains promptly with a sponge and liquid detergents.

PRIMERS & INTERIOR FINISHES . . . Priming is essential for better adhesion, sheen uniformity, mildew control and durability. Select a top quality interior paint in the color and sheen of your choice.

Touch-Up Failure

touch_up_failureTOUCH-UP FAILURE . . . a difference in color and appearance between the original paint and the touch-up spots.

TOUCH-UP FAILURES CAUSES . . . poor technique. Touching-up with a different batch number and applicator. Touching-up at different temperatures. Failure to reduce the touch-up paint by up to 25%. Touchingup marks that could be removed by washing with a sponge and liquid detergent.

TOUCH-UP SOLUTIONS . . . always use the same batch number when available. Try to wash the mark off first with a sponge and liquid detergent. Use only enough paint to cover the mark, excess paint may cause a halo. Use a feathering-in technique, avoid dabbing. Thin paint up to 25%.

PRIMERS & INTERIOR FINISHES . . . Priming is essential for better adhesion, sheen uniformity, mildew control and durability. Select a top quality interior paint in the color and sheen of your choice.

Wrinkling

WRINKLING . . . a rough crinkled surface caused by a drying interference and forming a wrinkled skin.

WRINKLING PROBABLE CAUSES . . . applying the paint too thickly. Painting over an insufficiently cured primer. Painting during extreme hot or cool/damp conditions will cause a drying interference and the paint film will skin rather than curing properly.

wrinklingWRINKLING SOLUTIONS . . . the wrinkled layers must be totally removed by sanding/scrapping. Stubborn underneath layers may require liquid paint remover. Bare areas need priming and allowed to dry. Spread uniformly and avoid painting in hot direct sunlight or when the temperature is below 50° F.

PRIMERS & INTERIOR FINISHES . . . Priming is essential for better adhesion, sheen uniformity, mildew control and durability. Select a top quality interior paint in the color and sheen of your choice.

Yellowing

YellowingYELLOWING . . . gradual formation of a yellow cast in aging oil based paints sensitive to the lack of UV exposure.

YELLOWING PROBABLE CAUSES . . . using alkyd or oil-based paints in white or light colors. Heat effect from heating ducts, radiators or stoves. Limited light exposure behind pictures, appliances, inside closets, etc. Oxidation of oil-based paints/varnishes. Recycled paper on sheet rock.

YELLOWING SOLUTIONS . . . select premium acrylic paints that are non-yellowing. Available in a variety of sheens for most every purpose. Non-yellowing varnishes are also available. Alkyd and oil-based paints tend to yellow particularly in little or no sunlight and dark areas.

PRIMERS & INTERIOR FINISHES . . . Priming is essential for better adhesion, sheen uniformity, mildew control and durability. Select a top quality interior paint in the color and sheen of your choice.

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