SAGGING RUNS PAINT DEFECT: How to Solve – SINNEK

How to prevent paint sagging (runs) is one of the questions that every bodyshop professional has considered at some point.

This video shows all aspects to consider to correct this defect.

Sagging, also known as paint runs or paint sags, is a paint defect that occurs mainly on vertically oriented parts, such as doors, flaps or bumpers, and can occur in both the intermediate coats and in finish paint.

The form in which they appear on the surface is as paint run-off, generally caused by an excessive amount of product.

This excess paint tends to drip downward, due to the effect of gravity when applied to a vertical surface, resulting in paint sagging.

Let us now look at what causes sagging, and its possible solution:

1. Low paint viscosity

2. Excessive product load

3. Incorrect painting technique

4. Flash-off time between layers.

5. Use of slow thinners.

By following these steps, the appearance of paint or clearcoat sagging will be prevented.