What is the most cost-effective method for applying primer to panel seams during small repairs?

The most cost-effective method for applying primer to panel seams during small repairs is using a fantail artist brush. This technique allows for precision application, especially in tight areas that require careful control to avoid overspray or excess primer. It is particularly beneficial for small repairs where large tools like spray guns may not only be more expensive but also more cumbersome to use.

Using a fantail artist brush facilitates a focused approach for applying primer exactly where needed, minimizing waste of materials and reducing the time taken for masking areas that would typically need to be protected from overspray when using spray guns. Furthermore, the brush method is often more economical in terms of both the cost of the application equipment and the amount of primer used since it allows for a more controlled application.

In contrast, while airbrush and spray gun methods can be effective for larger areas, they typically require more preparation and cleanup time, which can increase overall costs. Roller application, while potentially quick for covering larger surfaces, does not provide the precision needed for seams and can lead to uneven application, leading to additional costs in terms of material and labor to rectify any mistakes.