A bendable substrate with a hardboard face that can be formed first and laminated last.

Flexboard is a bendable product designed for use in all types of radius projects. It consists of a core of kerfed particleboard with an .080" thick hardboard face. Flexboard will produce a 10-inch radius that allows for quick and easily fabrication without the need for sanding, patching or multiple layers and requires no special installation methods. It helps reduce labor cost, provides a uniform surface with many face options and improves quality.

Flexboard is a superior alternative to bending plywood for radius fabrication. It is calibrated for uniform thickness throughout the manufacturing process. Consistent thickness helps achieve excellent quality results without the need for putty, bondo and sanding that increases labor requirements usually needed when using bending plywood. Flexboard's seaming abilities allow for easy splicing in both the vertical and horizontal direction. Its substrate allows for repeatable symmetrical bending.

Flexboard is an eco friendly product with a NAF face material and a particleboard core material made from 100% recovered and recycled fiber content. Flexboard can help qualify for LEED credits MR 4.1 and MR 4.2. It is also available in a FSC version that can provide credit on MR 7. Flexboard is optionally available in a No Added Formaldehyde version called FlexGreen (see additional information under that product).

Photo Courtesy of: Ultrawood

Flexboard is a great product for architectural panels. Its stable hardboard face allows the flat attachment of face veneer materials, by use of hot or cold press application. Either single-ply or paper-backed veneer faces can be laminated using normal pressure, heat and time settings to the Flexboard. It can then be machined, sanded and then bent into the desired shape. It can be held in shape by gluing to a ribbed frame or applying a back to lock into shape.

Flexboard's hardboard surface is ideal for conventional fabrication and then applying veneer, HPL, metal and other similar materials. When laminating after fabrication, the use of contact adhesive with normal pressure is adequate. Firm hand pressure or moderate pressure with a J-roller works well. It is also very suitable for painting or application of graphic materials. When using a PVA glue, make sure the glue is transferred to both materials and that adequate uniform pressure can be applied for the required amount of time.

Flexboard is available in nominal 4' X 8', 8' X 4', 4' x 10', 10' x 4', 4' x 12' and 12' x 4' panel sizes with a particleboard core and an .080" thick hardboard face. Additional core materials are available based on sizes and availability.


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“The Kerfkore product line allows our team to focus on what they are really good at doing, rather than dedicating an excessive amount of wasted time on unskilled administrative tasks such as sanding, filling flat areas with Bondo and unnecessary framework. This allows us to offer a better price to our customers.

Provides stronger, better and more reliable results compared to our old approach where we used layers of 3/8" bendable plywood.

I knew that their product line would make a positive difference as soon as the manufacturer representative walked through our door.

Currently, there is not a single section on our production floor that doesn't contain one of the IPI products.”
Walton Scott, Quality Cabinet & Fixture Company (San Diego, CA)