Ropiness

Cause

Ropiness of a paint coating caused by the material being high in viscosity (thick), with very little flow. This also occurs when paints of normal viscosity are applied without care.

Solution

The ‘ropy’ finish must be thoroughly dry and flatted down with carborundum paper (wet or dry) used wet, with water as a lubricant. If repainting with the same product adjust with appropriate thinning agent to the correct viscosity before re–painting.

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Cratering

Cause

Problems of this nature can be caused by rain falling onto the semi dried coating or  aeration/frothing of the paint during application usually by roller and not flowing out properly. Also referred to as pin holes

Solution

Once the coating is completely through dry, flatting down should take place using carborundum (wet or dry) abrasive paper preferably wet – using water/soap  or white spirit as a lubricant. Recoat with chosen paint finish.

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Cause

This defect mirrors that of an orange peel and is generally due to incorrect paint application by spray or roller.

Remedy

The dry paint film should be flatted down back to a  smooth and level surface.  Wet or dry carborundum paper, preferably wet, is generally used.

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