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PolyBak PB90 backer is a .024 inch thick sheet in a 61 x 97 inch size that serves as a backer for laminated substrates, so it supports flat, stable panel construction across a full cabinet or fixture panel. Being 3.5 times stronger than the leading saturated Kraft paper backer of the same thickness, this backer provides significantly higher strength in the panel build, which matters where panels see handling, transport, and day-to-day use. The backer is most commonly used behind decorative laminates, which helps balance the face material and support long-term panel performance. PolyBak PB90 is also used as a paintable overlay for substrates and columns, so the same sheet can serve in both structural balancing and finished surface roles. As part of the Richwood Industries backers line, it fits into typical woodworking and casework shop workflows focused on laminate and veneer work.
The .024 inch thick PolyBak PB90 backer sits as a balancing layer in a typical laminated substrate stack, so it becomes part of the engineered panel thickness while keeping the profile manageable for cabinet and fixture components. With dimensions of 61 x 97 inches, the sheet size works with common panel layouts, which simplifies planning for rips and crosscuts when laying out cabinets, shelving, or column wraps. Its most common use as a backer for laminated substrates means it fits standard decorative laminate workflows, so it drops into existing shop processes for panel pressing and trimming. When used as a paintable overlay for substrates and columns, the same sheet presents a surface intended to receive paint, which ties panel construction and visible finish work into one material choice.
PolyBak PB90 backer is most commonly used as a backer for laminated substrates, so it is applied opposite decorative laminates on panels where balanced construction is important. In this role it supports cabinets, casework, fixtures, or other laminated assemblies that rely on a matching back layer behind the decorative face. Its .024 inch thickness gives a defined layer in the build-up, which helps designers and fabricators account for the panel stack when planning joinery and hardware locations. The 61 x 97 inch size lets one sheet service large panel formats, which can reduce seams on cabinet sides, tall partitions, and full-height components. Being 3.5 times stronger than the leading saturated Kraft paper backer of the same thickness provides added strength in the panel, which supports machining steps such as routing openings, cutting toe kicks, and processing edges without sacrificing the back layer.
Because PolyBak PB90 backer is 3.5 times stronger than the leading saturated Kraft paper backer of the same thickness, it contributes more strength to composite panels, which helps them tolerate handling from press to installation without the backer tearing or failing. Its role as an excellent strength balancing backer for substrates faced with decorative laminates means it is selected to balance the face material, which helps the laminate side and backer side work together under everyday conditions. The backer also serves as an excellent veneer crossband, so it can sit between a core and a veneer face where a crossband layer is desired. This crossband function supports veneer layups that benefit from a stable intermediate layer. PolyBak PB90 is additionally used as a paintable overlay for substrates and columns, which allows a single sheet type to both structure the panel and present a surface ready for a paint system on flat panels and vertical column elements in the same project.
PolyBak PB90 backer has a .024 inch thickness with a 61 x 97 inch panel size, so it covers large laminated substrates while keeping the backer layer relatively thin in the panel stack.
PolyBak PB90 backer is an excellent strength balancing backer for substrates faced with decorative laminates, so it is placed on the reverse side of laminate-faced panels to balance and support the construction.
PolyBak PB90 backer is described as an excellent veneer crossband, so it can serve as the intermediate layer between the core and veneer face where a crossband is desired.
PolyBak PB90 backer is 3.5 times stronger than the leading saturated Kraft paper backer of the same thickness, so it adds more strength to the panel during machining and handling.
PolyBak PB90 backer is used as a paintable overlay for substrates and columns, so it can act as the surface layer where a painted finish is applied across panels or vertical elements.
PolyBak PB90 backer is most commonly used as a backer for laminated substrates and as a veneer crossband, so it fits cabinet, casework, fixture, and similar laminated or veneered panel projects.
The .024 inch thick, 61 x 97 inch PolyBak PB90 backer from Richwood Industries offers a defined panel layer that is 3.5 times stronger than the leading saturated Kraft paper backer of the same thickness, so it supports demanding laminated or veneered projects. Its common use as a backer for laminated substrates, as an excellent veneer crossband, and as a paintable overlay for substrates and columns means one material can address multiple roles in the same job. For shops working with decorative laminates, veneers, and painted elements, this balancing backer aligns panel construction, strength, and finishing needs across cabinets, casework, and columns.
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