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Roseburg introduces Armorite Exterior MDF

Armorite is insect, rot and water resistant, according to the manufacturer.

Armorite is insect, rot and water resistant, according to the manufacturer.

Roseburg Forest Products has introduced Armorite Exterior paneling to its line of specified MDF products. Able to resist moisture, rot, decay, and insects, with no added formaldehyde, Armorite was engineered with machinability in mind for peak performance in profiling, cutting, and making custom designs, according to the company.

“Armorite is a great alternative for plywood in some of those decorative uses. Unlike plywood, it won’t require a lot of sanding. It’s nice and paintable in outdoor applications where MDF couldn’t perform before,” says product manager Renette Rier.

“Typical MDF is not insect resistant, not rot resistant, and most of them are not water resistant. Armorite is all of those things. Woodworkers know MDF for its paintability and machinability for interior uses, but our product can be used outdoors in decorative applications for signage and things like that where people want the benefits of an MDF, the smoothness and those kinds of things, but couldn’t use it outside before.”


Roseburg recommends the product for exterior cabinetry, countertops, furniture, garage doors, shutters, and non-structural paint-grade millwork. Rier adds that Armorite is also ideal for interior use in climates with heavy humidity.

Manufactured from Western softwoods, Armorite is treated with a proprietary biocidal treatment process that conforms to the International Building Code and International Residential Code. It is available with the option of FSC or SFI certification and contains 92 percent pre-consumer recycled content. Panels are offered in 4’ and 5’ widths, and lengths up to 18’, in thicknesses ranging from 1/4” to 1-1/4”, according to the company.

The product won a Visionary Award in the materials category at the 2021 AWFS. It can be ordered through distributors listed on the company’s website.

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This article was originally published in the February 2022 issue.

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