In the long term, premature birth may lead to these complications: 1  Cerebral palsy. 2  Cerebral palsy is a disorder of movement, muscle tone or posture that can be caused by infection, inadequate blood flow or injury to a preemie's developing brain either during pregnancy or while the baby is still young and immature.
Before you even think about welding, make sure you have the right gear, including fire resistant jacket, safety glasses, welding gloves and an approved welding helmet. Helmets have come a long way in recent years.
I personally wait at least 24 hrs before I wet sand the primer. then dry it off really well. and it's ready for color. that's how we do it a the body shop. but I only use automotive grade paints on bodywork. if you are painting a engine or something, just let it flash off for an hour or two and spray your color.