Features September 2014 Issue

Test Checks Burst Point and Freeze Protection

We tested each product for glycol content using a refractometer and either the ethylene glycol or propylene glycol scale, as appropriate. In the case of Camco’s Arctic Ban and Sudbury’s Winter Stor, some portion of the freeze protection is provided by ethanol, and such mixtures cannot be easily evaluated by any field method (test tape, gravity, refractometer) unless the exact proportion is known, which we find troublesome.

To continue reading this article, you must be a paid subscriber.

Subscribe to Practical Sailor today and save 72%.

Here's what you'll get:

  • Immediate access to this article.
  • Access to more than 2,000 Practical Sailor articles like this.
  • Each new monthly issue delivered to you.
  • Recommendations of the best electronics for your boat.
  • Money- and hassle-saving tips for finding your dream boat.
  • Help installing new equipment and gear so you'll get it done right the first time!
  • Ratings on the newest paints, coatings and materials to keep your boat ship-shape.

Your satisfaction to Practical Sailor is guaranteed. Subscribe today to see why hundreds of thousands of sailors trust us as their #1 source of boating information.

 

Subscriber Log In

Forgot your password? Click Here.
Already subscribed but haven't registered for all the benefits of the website? Click here.