Coatings of SP 1.4370 exhibit low shrink and are recommend for internal diameters, particularly where thick coatings are needed. Using the combustion wire spray process, SP 1.4370 coatings can be sprayed thicker than SP 1.4316 coatings, but not as thick as SP 420 coatings.
Metals spray wire with good corrosion resistance and low schrink factor, recomended for inside diameters.