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Problems with Painting Coating Systems

All You Need to Know About Paint

Paint Coating System Defects

Cissing

Cissing is globules or misses in the paint film where it has not adhered to the substrate. Painting greasy or very smooth shiny surfaces causes it, or finishing over an oily undercoat. Thoroughly washing and rinsing the substrate can prevent it as well as a light sand to remove the shine.

Flaking

Flaking is paint or varnish lifting away from the surface in flakes because of a breakdown of the adhesion. It occurs when painting damp surfaces, especially timber, or painting powdery surfaces. To prevent this ensure that all the surfaces are completely dry and that the correct sealer and preparation has occurred.

Flashing

Flashing is patches of uneven sheen with semi gloss finishes. It is caused by not keeping a wet edge while applying the paint. To prevent this keep a wet edge and ensure that the air temperature and movement meet the specifications and the correct equipment, brushes etc are being used and the coating system is as required.

Rain Spotting, Cratering

Rain Spotting, Cratering is craters or holes on the surface of a dry paint film. It is caused by rain falling on a wet film, condensation or dew on a wet film. To prevent this always check the weather conditions before commencing to paint. Avoid painting in high humidity.

Rivelling

Rivelling is wrinkles occurring in the paint film as it dries. It happens because the paint has been applied too thickly. To prevent it, ensure that the paint is applied to the normal film thickness.

Saponification

Saponification is a sticky paint film that is oozing with a brown soapy liquid. Applying an oil paint on new alkali surfaces or applying paint to surfaces that are likely to be splashed by alkali solutions causes it. To prevent this seal the substrate with an alkali resistant paint or latex paint or chemically resistant paint.

Sinkage

Sinkage is the failure of a paint or varnish to keep up its original shine or sheen. Applying the paint over insufficiently sealed absorbent surfaces, or using the wrong paint system causes it. A wet paint film may be affected by damp weather or condensation. To prevent this ensure surfaces are properly sealed, use the correct paint system, and apply paint in the conditions specified on the can.

To Continue Articles on Interior Design and Decorating Interior Finishes - All You Need to Know About Paint - next page is Paint Systems

Paint Composition
Pigments
Additives
Pure Oil & Oil Based Paint & Varnish
Water Thinned Coatings
Timber Stain
Spirit Type Coatings
Different Types of Paint Names
Paint Manufacture
Breakdowns or Defects - 1
Breakdowns or Defects - 2
Paint Systems
Special Types of Paint
Paint Application Tools

DIY Tips for Perfect Paint Jobs

More Interior Decorating Finishes - Menu

Carpet, what ist is made of and how it is constructed, it's appearance pitfalls, types of carpet, underlay, installation types.

Paint, how it is made, what are it's uses, oil based, enamel, acrylic, PVC paint, which paint to use.

Paint manufacture, recognising painting defects, specialist paints

Wallpaper, wallpaper defects, types of wallhangings, adhesives, stone flooring, timber flooring, hard flooring, vinyl flooring

Types of timber, countries of origin - South America,Canada / Usa, Europe, Africa, Pakistan / India / Burma / Sri Lanka / Malaysia / Indonesia, Australia / New Zealand / Pacific Island

Introduction to metals, types of metals, ferrous metals, non ferrous metals

Timber / Wood - What it is and how it is used in interior design, Trees and how we get timber, Properties of Timber - flexibility, colur, strength and more. Timber Deviations - grain and figure, Timber Based Boards - different types of boards made from timber. Uses for Timber - flooring, panelling, veneer, Timber Moldings- different types made from timber.

Decorative Painting, Faux Finishes, Decorative Finishes

Different types of fabrics, their definitions, the fibers used in making fabrics

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Further Reading and Related Articles on this Topic

Interior Design Finishes - Carpet Contents Paint Contents More Paint Contents Wall Hangings and Flooring Contents Types of Timber Contents Metals Contents Timber Uses Contents Decorative Painting Contents Fabric Contents

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