The invention discloses an
ethylene propylene rubber insulation material for longitudinal high-
voltage watertight cables of ships and warships and a production method thereof. The method comprises the following steps: adding the ethylen e-propylene-
diene mischpolymere, age resister and
fire retardant into a banbury for banburying for 3.5min; adding argil, white
carbon black and
paraffin wax for continued banburying for 2min; adding
active agent, and discharging after banburying for 1.5min; filtering the rubber compound with a three-layer filter screen (namely a 60 mesh filter screen, a 60 mesh filter screen and a 80 mesh filter screen) on a rubber filter; and beating into cornucopla on a double-
roller mill, adding vulcanizer and co-crosslinker, then beating into cornucopla for 7 times,
grinding and
slicing after finishing the steps, and then cooling, wherein the materials are as follows in parts by weight: 100 parts of ethylen e-propylene-
diene mischpolymere, 1-5 parts of vulcanizer, 1-4 parts of age resister, 15-70 parts of
fire retardant, 0.5-10 parts of
active agent, 10-20 parts of argil and 2-4 parts of paraffin. The prepared insulation material has the characteristics of low
smoke, no
halogen,
fire resistance, high machinery strengthen, and high
insulation resistance, good flexibility, elasticity and
viscosity, and can be used for the ships and warships.