Abstract: A pipeline exterior blasting system, movably mounted to a pipeline, to blast only uncoated end sections of a first and second pipe at a weld site where the first and second pipes were welded together. Uniquely, there is a blasting containment device having: a fixed portion 22; a rotating containment portion 24 rotatably mounted to the fixed portion 22, and releasably and rotatively coupled to the second pipe 20B; a support devices system 106, coupled to the blasting containment device 12 via connections 107, including: a blasting device 16, a vacuum device 18; and an electrical power generator 14.