..... Could also be good for keeping condensation off machinery? .......
Plastic may be OK for shedding water drips but in itself rather poor at preventing condensation damage as it's prone to condensation forming on its inner surface and in turn dripping on machines if it chills down.
Cotton fabric or an old cot blanket, mattress cover etc. that in itself has some insulation properties are more likely to keep any machine warmth in and prevent colder air from getting to it.
just a traveller on the road of time.Bits & Pieces Gallery