Traditional lead has been used by early auto manufacturers to cover body joins and seams. At the time this was the only material available for the job. It has been regarded as the best method to do so, and in most cases has lasted the test of time. Later in the 1950's lead was heavily used by the pioneers of car customisation and hence the term "lead sled" was then derived. When it comes time to restore a vehicle, lead has its place for an authentic project.
Lead is a filling material for areas on a vehicle that require it. Most commonly used on sections that cannot be metal repaired completely. It is perfect on pillars, panel edges, exterior corners and shut lines. Its strength is also ideal for door and panel edges that are vulnerable for chipping. Lead is perfect to cover over seams and overlapped metal; it will not show up witness lines or shrink in these areas.
The most ideal flame for lead wiping is a soft flame that disperses heat over an area and allows time for metal to heat gradually. This Soft Flame Torch is designed to provide exactly that. Slip this Body Soldering Diffuser Tip over your existing oxy-acetylene tip and you can use acetylene only to produce a soft flame perfect lead soldering.