Complex sentence: In 1970, a patent was awarded to NASA for a zinc silicate primer coating called K-Zinc 531, the name owing to the ratio of silicon/potassium to water being 5:3:1.
Split into simpler sentences: In 1970, a patent was awarded to NASA for a zinc silicate primer coating called K-Zinc 531. Owing to the ratio of silicon/potassium to water being 5:3:1.