Applying the solder paste. Just spread an even layer over the area. Tommi 18.4.2017, 20:24 Full size 1000 × 563 pixels Applying the solder paste. Just spread an even layer over the area. Previous imageAn auto body file is a great tool. It's a coarse file that is attached to a special holder. This one has a DIY holder my father made some time ago. Next imageYou should see a bright, even surface. The most common mistake is not heating the paste enough, so the solder in it doesn't melt. Leave a Reply Cancel reply Your e-mail address will not be published. Required fields are marked *CommentName* Email* Website Save my name, email, and site URL in my browser for next time I post a comment. Notify me of new posts by email.