Spectrum Low Fire Crackle Glazes create a crackle finish when applied to
ceramic pieces. They may be left as is or dye can be rubbed into the
cracks to give the pattern more visibility.
Spectrum Crackle Glazes are safe to use by children and pregnant women
because they are certified lead-free and non-toxic. However, crackle
glazes are not dinnerware safe due to the possibility of bacterial
growth in cracks.