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Stop Interior Rust with WMC100

Now that cold weather has set in, you may have noticed some condensation on the metal ceilings in your poultry or swine buildings.  Most noticeably, these areas are around the air inlets and rolled ceiling along the sides of the building. In some cases, the metal may be starting to show rust and even developed holes and cracks.

Although these rust areas may be small now, they will continue until the ceiling “rusts through” and needs to replaced.    This is an expensive job because of the labor required to drop auger, electric and water lines plus remove and replace the steel and fasteners. Also additional down time between groups needs to be allowed.

Hog Slat offers a repair product called WMC100, a Moisture Cured Polyurethane White Coating that is specially designed for metal ceilings in confinement building.  WMC100 is single component epoxy that repairs and protects interior steel surfaces.

Simply remove any loose rust by scraping or wire brushing.   The surface is then treated by brushing on Rust Converterwhich chemically neutralizes rust by converting it to a stable black compound.  As Rust Converter is applied, rust will turn black and a clear acrylic layer is formed over it.  This acrylic layer also prepares the metal surface to bond to the WMC100.  If there are holes or tears in the metal you can cover them with VSC Seam Tape. WMC100 is rolled or brushed on and the repair is complete.

That’s all there is to it!

The great thing is all these repairs can be done in place….no need to remove auger, water and feed lines.   You can do small repairs as they occur and stop them before they become bigger problems.

Hog Slat makes it easy to try WMC100 with a kit, part number WMC100-KThis kit contains 1 quart of WMC100, 1 pint of Rust Converter and four pieces of VSC Seam Tape; everything you need to repair up to 50-60 sq. ft. of ceiling metal. For various sized project needs, Rust Converter is also available in a 13 oz. spray can and WMC100 can be purchased in gallon or 5 gallon sized pails.


For exterior metal repair projects, Hog Slat offers AMC100 in various sizes as well as in a kit. Learn more about all our Vanberg Specialized Coatings metal repair products here.

Stop in your local Hog Slat, Georgia Poultry or Eastern Shore Poultry Services store or order the WMC100 kit online at


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