What is the function of silicone sealant for chargers?

dg#822ff2ba707afd9ed1d891d2f6cbed01

dg#5c8f67781f67ca7772f9e51e6afcc617

dg#3875ec45fbec89b7a6aaf36e1593186a
What is the function of silicone sealant for chargers?

dg#5d5c738fc29e0504b0576fc88b733a27dg#0a671a84dc63ec9a0cdd2bde2e475c52dg#094c0e95066faf521a8841f21e4fe2d8
dg#885c6eb845c76cdf503bc3d183aac28f
dg#eea4ba8d5c8a35f1549e8abd95e66e22
dg#d70e4334e3418dd1fb07425471e83b92
dg#857039aa915be4ea9821be9f3163b7a5
dg#018f910270999fbb1f82b9575dddace1
dg#2673bdac54e0e6296fa3a02c9b2704ac

dg#f8ec0f3aa329ebfedf13a79184b7867e

dg#3f34d8afce2f55057e13f1e226766422 dg#dd6a29379fbc937ab85391e9094d6e81 dg#9dbb9badbffa9f53aafbe086f79a2b74 dg#ad23ad390df2fada37ecea3faf627887 dg#6e6d61be1d9aa4c9e739aca616bb7903 dg#0fc3f55a1315b07ac3d7cb6023ed37ef dg#e20ca74ff9255868916432c71f52ac83 dg#fd0e5dcb60984077abd1a00802c53eef dg#51a7b50a9891bbd18fbc1ef8368e6249 dg#c9f7b14aff7e9be41b26bb25d88d7b6c dg#b32d7a66e0778fa99b0a82fae1ee1ae6 dg#7696ef9a83a6669576a6d5c2b2b510a4 dg#dbf5400daab839665d958244347ff929 dg#ebadad3c4774ce29105f717ceaba2267 dg#783996ac22f21db1af508cb720520145 dg#89f7f2e08494967eb587b1b4486b23b7 dg#2fca51111f68dec2e272f2ef1cf56b93 dg#5b2c8241a89d2bc5380584616ef8ee9c dg#e3b4721da9bfad13d11d474178f1ab66 dg#89a177cb8b0457bb1a06d711bc4bd325 dg#d6e1539694bf593b513930b0a5229fda dg#b498e6d3deeff1b5b32d385bf3977f6a dg#5dcc80afad059a53919395f353f3b26e dg#2d3f98f97cec5059ff748a40f9e184e1 dg#7c8a13cd0a6d9e06afcfc6c833c08668 dg#ca20ffa92a1a6380d5f2653d94cb0631 dg#e7da84fbae308d7264aac1a8b76bfe1b dg#17ac40c67b9589760e07a0c3b11b15e7 dg#a87f780f0dff9e961ae587e0d2e77ff7 dg#a6dc122365abb8ff068578c5a5da1ab4