I'm not sure about a "cover" over construction foam, but there is the Obscurator:
I haven't used it much myself, since I only play single-player and prefer to have my cables visible.
Replied to the thread [IC2 Exp][1.10.x] Gravitation Suite v3.0.0 - The last of the three.Post(Quote from Romzes)
Chocohead, help me please. I can not start the server with this world because it crashes.
Replied to the thread [IC2 Exp][1.10.x] Gravitation Suite v3.0.0 - The last of the three.PostI put an improved diamond drill in the rig, after which the server crashed. When you turn on the server, it constantly crashes and I can no longer play on the old map. What should I do?