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    Backers
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    2. Edgebanding & Surfacing
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    Item # RCPB90BR36-58 • Mfr # PB90BR36 5X8

    Backers .024" Thick, 61 x 97 Inch

    Description

    PolyBak PB90 Backer For Laminated Substrates

    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.

    Backer Sheet Details That Support Panel Work

    • The .024 inch thickness gives a consistent backer layer across the 61 x 97 inch sheet, which helps keep panel thickness predictable when matching multiple parts in a run.
    • The 61 x 97 inch size covers large laminated substrates, allowing one sheet to support full panels for cabinets, fixtures, or wall segments without needing seams across the field.
    • Being 3.5 times stronger than the leading saturated Kraft paper backer of the same thickness provides greater strength in the panel stack, which helps panels handle routing, cutting, and edge processing.
    • Use as a backer for laminated substrates means it works behind decorative laminates, which balances the construction so the face sheet and backer work together in service.
    • Use as a paintable overlay for substrates and columns allows the same material to carry a finish coat, so panels and vertical elements can share a common base layer across a project.
    • Use as an excellent veneer crossband gives a stable intermediate layer under veneer, which helps support veneer layup where a crossband is needed between core and face.

    Backer Sheet Fit For Laminate And Veneer Layout

    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.

    Where This Richwood Backer Works Best

    Using PolyBak PB90 Backer On Laminated Substrates

    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.

    Why Its Strength And Overlay Uses Matter In Practice

    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.

    Common Buyer Questions About PolyBak PB90 Backer

    What are the dimensions of this PolyBak PB90 backer sheet?

    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.

    How is this backer used with decorative laminates?

    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.

    Can this PolyBak PB90 sheet be used under veneer?

    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.

    What does the increased strength of this backer provide?

    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.

    Is this backer suitable as a paintable overlay?

    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.

    What type of woodworking projects typically use this backer?

    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.

    Select PolyBak PB90 Backer For Laminated Panels

    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.

    Product Type
    Backer
    Color/Finish
    Brown
    Width (in)
    61 in
    Length (in)
    97 in
    Thickness (in)
    .024 in
    Supplier Pack Size
    250
    Sold In
    1
    Product Type
    Backer
    Color/Finish
    Brown
    Width (in)
    61 in
    Length (in)
    97 in
    Thickness (in)
    .024 in
    Supplier Pack Size
    250
    Sold In
    1
    37 in49 in52 in61 in
    74 in97 in121 in145 in1800 ft
    Backers .024" Thick, 61 x 97 InchPolyBak PB90 Veneer Backer, Balancer .024" Thickness 61" x 97"
    Richwood Industries
    $20.83/Sheet
    Backers .024" Thick, 61 x 97 Inch
    Item# RCPB90BR36-58 / MFR Part # PB90BR36 5X8
    Sheet
    Sheet
    In Stock

    Sold In: 1 Sheet

    Sheet