Sub-Frost Heat Transfer Fluid
RV & Marine Seasonal

RV & Marine Antifreeze

Seasonal winterizing antifreeze for the plastic plumbing in RVs, boats, and summer homes.

RV & Marine Antifreeze container

Specifications

Technical specifications for RV & Marine
Operating range Seasonal winterizing; freezing is normal and will not damage plumbing
Inhibitor system Not applicable; winterizing antifreeze, not an inhibited heat transfer fluid
Pre-mix concentrations Ready to use
Package sizes 1-gal bottles (6/case)

Documentation

Free to download, no form required.

Technical & safety documentation available on request. Ask our team.

Overview

RV & Marine Antifreeze is the seasonal outlier in the ig-loo line: a ready-to-use winterizing fluid for the plastic plumbing in recreational vehicles, boats, summer homes, septic systems, and swimming-pool filtration and heating systems. Freezing of this product is normal and will not damage plumbing.

It is not a heat transfer fluid and should not be used as an engine antifreeze or in closed-loop heating and cooling systems. For those applications, see Sub-Frost’s inhibited propylene and ethylene glycol lines.

Applications

  • RV & boat plumbing
  • Summer homes
  • Septic systems
  • Pool filtration & heating systems