VC-4 Shielded Undercoating

VC-4 Features

Shielded Undercoating

what VC-4 does for you

how it works

why use it


What Duratain’s VC-4 Shielded Undercoating Does for you

An installation of Duratain’s VC-4 Shielded Undercoating to the undercarriage of your RV by our skilled technicians will:

  • Stop Rust
  • Stop Corrosion
  • Protect Structural Joints & Seams
  • Protect Exposed Tanks & Pipes

How Duratain’s VC-4 Shielded Undercoating Works

Our RV specific dry and shielded undercoat not only keeps the elements out but also stops stray currents created by the use of dissimilar metals and electrical components. This advanced coating exceeds military specifications. Guaranteed not to crack or chip, Duratain’s VC-4 Shielded Undercoating withstands the harshest environmental conditions and is safe and effective for use on plastics, metals and non-heat conducting surfaces. 

Why Duratain’s VC-4 Shielded Undercoating?

  • Protects Treated Areas, including Exposed Tanks and Pipes from Temperature Extremes
  • Helps to Seal Undercarriage Joints and Seams
  • Stops Structural Corrosion
  • Protects Grounding Straps
  • Meets or Exceeds Military Specifications (Federal Specs. TT-C-520B)
  • Insulates Exposed Water Lines and Joints
  • Warrantied 10 years
  • Re-treatable for the Life of the Contract

Duratain’s VC-4 Shielded Undercoating FAQ’s

Q: I am buying a trailer, do I need this?Yes, manufacturers need to build lightweight towable RVs to match up with fuel efficient environmentally friendly vehicles. In order to do this the use of dissimilar lightweight metals is necessary. These metals need to be protected to prevent premature failure.

Q: Why is this not done at the factory?You are buying a Recreational Vehicle not a commercial vehicle. In order to keep manufacturing costs low Duratain is offered as a option and not standard equipment.

Q: Is everything under my RV coated?No, every RV is different.  Our skilled technicians will know just what to treat and not treat for your RV’s best protection.  A good rule of thumb is if it moves or has heat, we don’t treat!

Q: Is there is a cost to reinstall Duratain’s VC-4 Shielded Undercoating if I have a manufacturer defect or warranty repair done to my RV?No! If your RV is repaired either under the warranty from the manufacturer or the dealership there is zero cost to reinstall at the dealership on ANY Duratain treated surface.