Job Description:

• 1) Tends mixing machine to prepare materials used in insulation jackets of rocket-engine chambers, and repairs defective jackets: Weighs out and pours specified quantities of chemical ingredients into mixing chamber of colloid mill.

• 2) Starts mill and moves controls to set automatic timer and maintain specified temperature of mixture.

• 3) Opens valves to transfer mixed ingredients from mill to storage tanks.

• 4) Examines and feels insulation jackets for defects, such as breaks and surface flaws.

• 5) Removes defects, using power grinder, and fills recesses with specified insulation material, using spatula or spray gun.

• 6) Buffs repaired area, using power buffer.