“Trump is once more pushing to have his border wall painted black, a design change that is projected to add at least $500 million in costs, according to government contracting estimates”
“…military commanders and border officials believed as recently as last fall that they had finally talked him out of it. They consider the black paint unnecessary, costly and a significant long-term maintenance burden, and they left it out of the original U.S. Customs and Border Protection design specifications.”
“The Post obtained a copy of painting estimates that federal contracting officials produced, and it shows costs ranging from $500 million for two coats of acrylic paint to more than $3 billion for a premium “powder coating” on the structure’s 30-foot steel bollards, the high end of the options the officials have identified.”
“There’s no technical reason to paint it”
“…probably would need to be repainted after about 10 years”