safe undercoating that will not damage wiring hardness floor plugs etc

I am looking for some feed back from guys that know the brand they used and has had product on truck for 3-4 year to report back how well the rubbers

1 L x 3/4 D Adhesive lined dual wall 4:1 heat shrink sealing sleeve. 8-6 AWG 7 Cable Entry. Made from fire retardant PVC.

Wiring Harness Grommet Firewall Boot with sealing sleeve 7 Cable Entry 3/8 ID

Corroded fog light connections, best way to clean them?

HEAVY DUTY UNDER CARPET FLOOR FLAT WIRING HARNESS-1.5mts

3M Auto Body Depot www TCPglobal com Non-Rubberized

16 AWG male & female waterproof connectors with 10cm wire.Material:Rubber, Operating temperature: -40℃~+120℃, 2 position rectangular black housing

5Sets 2Pin Way Sealed Waterproof Electrical Wire Connector Auto Male Female Plug Car Wiring Harness Splices With Cable Socket Quick Disconnect Plug

Rust Encapsulator

woolwax Lanolin Vehicle undercoating kit (4) Quarts w

3M Bondo Black Rubber Coating 18 oz - Ace Hardware

Trailer Wiring Diagrams

I think this is my splash shield that's loose. My friend says they

5Sets 2Pin Way Sealed Waterproof Electrical Wire Connector Auto

Trailer Wiring Diagrams

Eastwood Auto Liquid Media Blasting Kit For Pressure Washers

MULTI-PURPOSE UNDERCOATING may be applied to cars, truck and recreational vehicles SOUND DEADENING PROPERTIES help reduce road noise ASPHALT-BASED

3M Professional Grade Rubberized Undercoating, Corrosion, Water and Salt Spray Resistant, 03584, 16 oz. Aerosol