That is not ordinary gauze, it is specially made.

The gauze is coated with photosensitive glue, and the trademark pattern is used as the negative film. The gauze is exposed, and the photosensitive glue is exposed to the light. Then the exposed gauze is developed, fixed, etc., and the processed With gauze, the photosensitive areas become gauze, while the non-photosensitive areas remain watertight.

This gauze becomes a template. Only the trademark position can be penetrated by paint, and other places are impervious to paint.

If the number of sprays is not large, you can use cardboard instead. Use carving and cutting methods to make a hollow pattern of the trademark pattern on the cardboard. This cardboard becomes a spray stencil.