Composite, Thixotropic, Lead-Free Body Solders are safer to use!
Developed jointly with major automakers GM and Ford, Johnson's #523 unique lead-free body solder is much safer to use than traditional body solders that contain lead. Although melting at higher temperatures, which takes some adjustment in technique, they are much safer to use and they provide superior strength for filling seams, forming sculpture lines and around wheel wells, etc. Most effective when used with E127 Tinning Paste.
| Alloy | Composition | Solidus | Liquidus |
|---|---|---|---|
| #523 | Sn/15Cu/3Zn | 428°F | 940°F |
View our Technical Bulletin | Safety Data Sheet for this product.