Rivelling

Cause

Two problems in one. General poor application causing the material to sag and shrivel. Rivelling is caused by the film of a thick coating drying too quickly and skinning before the underlying material is dry.

Remedy

Once the entire coating is dry and hard, flat down using wet or dry carborundum paper, wet, with warm water and add soap. Thoroughly rinse  with clean water and allow to dry before  re-painting with additional coats.

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