1 The slave trade was abolished in the District of Columbia. 2  The Fugitive Slave Act made any federal official who did not arrest a runaway slave liable to pay a fine. This was the most controversial part of the Compromise of 1850 and caused many abolitionists to increase their efforts against slavery.
What is Galvalume? GALVALUME sheet steel coating is an alloy of 55% aluminum, 1.6% silicon, and the balance of zinc by weight, this coating is approximately 80% aluminum.
ZincalumeÂ®. Zinc / Aluminum alloy-coated steel or Zincalume Â® steel is composed of 55% aluminum, 43.5% zinc and 1.5% silicon which provides a superior coating for steel. The aluminum in the coating provides barrier protection to the steel whilst the zinc component provides sacrificial cut edge protection.This double protection mechanism is the secret behind Zincalume steel's superior corrosion performance.he aluminum in the coating provides barrier protection to the steel whilst the zinc component provides sacrificial cut edge protection. This double protection mechanism is the secret behind Zincalume steel's superior corrosion performance.