1. Skip to navigation
  2. Skip to content
  3. Skip to sidebar

Customer Service: 1 (623) 930-5490

0 item(s) $0.00 View Cart

Frequently Asked Questions - Coil Shield


Weatherproof Coil Shield is engineered to stop the corrosive effects of coastal salt fog on condenser coils.

Conditions vary widely. Winds, tides, and proximity to the ocean are all factors that determine corrosive rates. To help obtain a standard, accelerated weathering chambers are used to determine corrosion rates. In the field, it is recommended that Coil Shield be replaced every year under severe conditions, and less often under milder conditions.

The general idea is to subject the specimen to salt fog for extended periods in a controlled environment. In the case of Coil Shield, treated coils were exposed to salt fog, then UV light accompanied by high temperatures, and an industrial atmosphere containing sulfur dioxide. Coil Shield was exposed for 1,500 hours with no corrosive damage to coil fins. The test was then continued until fins on untreated coils were falling off copper tubing. Coil Shield specimens were structurally intact at the end of this 4,000 hour test period.

Look at your salt-spray life data from your coating supplier. Chances are WCS meets or exceeds their testing times.

WCS can be applied right at your location, with no special equipment or training, for $20 to $100 per condenser coil depending on size.

To adequately prepare and apply either of these products, you'll be looking at 3 or more hours per coil of manpower. With WCS, you will be looking at 10 to 15 minutes max. per coil.

Measurements show no heat transfer reduction with WCS.


WCS is sold in gallon containers. A 50 ton condenser unit will take about one gallon, while 1/2 pint is suitable for smaller units. Contact our customer service department to determine what you need for your units.