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PolyBak PB90 backer is a .024 inch thick sheet measuring 49 x 97 inches from Richwood Industries, so it covers standard laminated panels with a consistent, thin balancing layer. This backer is 3.5 times stronger than the leading saturated Kraft paper backer of the same thickness, which supports panels that see handling during fabrication and installation. The material is most commonly used as a backer for laminated substrates, giving decorative laminate faces a matched support layer on the reverse side. PolyBak PB90 is also used as a paintable overlay for substrates and columns, so the same sheet can back a laminate panel or provide a smooth, paint-ready surface on shaped components.
The .024 inch thickness of this PolyBak PB90 backer positions it as a balancing layer that works with laminate build-ups without creating a step at the panel edge. Its 49 x 97 inch format supports full-size laminated substrates so the back side can be covered in one run where panel size allows. When used as a backer for laminated substrates, the sheet aligns functionally with the decorative face, giving the assembly a similar behavior on both sides. When used as a paintable overlay for substrates and columns, the same sheet provides a uniform surface that is designed to accept paint as the visible finish layer.
This PolyBak PB90 backer from Richwood Industries sits in the Richwood Industries Backers class, so it is oriented to laminate and surfacing builds rather than general sheet goods. As a backer for laminated substrates, it pairs with decorative laminates on the face of panels, so cabinets, casework, or fixtures can have a laminate front with a balancing back side. The 49 x 97 inch sheet size supports large panel layouts, which is useful when backing full-height or wide components. As a paintable overlay for substrates and columns, the same sheet extends from flat panels to vertical or wrapped elements where a paint finish is desired instead of a decorative laminate.
Being 3.5 times stronger than the leading saturated Kraft paper backer of the same thickness means PolyBak PB90 provides a more robust balancing backer where panels face handling, transport, or repeated movement in service. Its role as an excellent strength balancing backer for substrates faced with decorative laminates connects the back surface structurally to the laminate face, which supports panel flatness and behavior over time. PolyBak PB90 is also described as an excellent veneer crossband, indicating it can sit between veneer layers to help stabilize veneer constructions. When used simply as a balancing backer, the sheet focuses on equalizing forces across a panel, while its paintable overlay description highlights its ability to accept paint on substrates and columns so visible surfaces and structural backing can come from the same backer family.
The PolyBak PB90 backer is .024 inch thick and measures 49 x 97 inches, so it spans large laminated substrates or columns with a single sheet in many layout situations.
PolyBak PB90 backer is 3.5 times stronger than the leading saturated Kraft paper backer of the same thickness, giving additional support where panels are handled or stressed.
The PolyBak PB90 backer is most commonly used as a backer for laminated substrates, tying the back side of laminate-faced panels into a dedicated balancing layer.
The PolyBak PB90 backer is used as a paintable overlay for substrates and columns, so it can function as the paint-ready surface as well as a backing layer.
The PolyBak PB90 backer serves as an excellent strength balancing backer for substrates faced with decorative laminates, supporting panel stability across the full thickness.
The PolyBak PB90 backer is described as an excellent veneer crossband, so it can be used between veneer layers to help stabilize veneered constructions.
The PolyBak PB90 backer combines a .024 inch thin profile with 49 x 97 inch coverage, fitting full-size laminated substrates in typical shop workflows. Its strength rating at 3.5 times that of leading saturated Kraft paper backer of the same thickness supports demanding laminate and veneer assemblies. With roles as an excellent strength balancing backer, an excellent veneer crossband, a general balancing backer, and a paintable overlay for substrates and columns, this Richwood Industries backer sheet aligns with laminate, veneer, and painted surface projects that call for a dedicated backer layer.
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