By Andrea Swensson
Economical. For shops just starting out, a new sewing machine can cost only a fraction of a new welding machine.
Convenient. The needle-and-thread method can accommodate a variety of thicknesses without much adjustment, and many shops already have sewing capabilities.
Versatile. Projects involving tight angles or sheer fabrics can simply not be welded, and sewing is the best alternative.
Efficient. Welding seams, especially for larger projects and larger quantities, can be much faster.
Waterproof. Although sewing technologies have improved, welding is by far the most leak-proof method.
Durable. In most cases, welded seams will hold up to testing and are proven stronger than sewn seams.