The issue of using Wave Solder Fixtures also known as Wave Solder Pallets on lead free solder lines is becoming a very important topic because of the challenges it poses. As the leading supplier of Wave Solder Fixtures, Datum Dynamics has given this matter their utmost attention.
Datum Dynamics has come up with a solution that addresses the main problem areas.
The effects of higher operating temperatures on wave solder pallet material including:
Material breakdown
Deformation at high temperature
The corrosive effects of lead free solder on stainless steel components
Although the material manufacturers have been developing new materials to solve the problem, Datum Dynamics USA has taken the lead amongst PCB Tooling companies and is the only company to have developed its own solution, Syntracote, which is available now. Syntracote is a specially formulated coating applied to the finished wave solder pallet which encapsulates the material to prevent resin burnout, helps to preserve the rigidity of finely machined webs and masking, and maintains flexural strength and the flexural modulus at high temperatures. Syntracote can be applied to new Wave Solder fixtures as well as old fixtures retrospectively. Chris Chapman has written an article on Syntracote which can be accessed here.
