P-POLYBAK32PolyBak PB69 Backer Sheets
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With just the right mix of performance and economy, PB69 is the most popular PolyBak backer.
At 2.5 times stronger than the leading saturated Kraft paper backer of the same thickness, PB69 is most commonly used as a backer for laminated substrates, but is also used as a paintable overlay for substrates and columns.
PolyBak has a Class A flame spread rating and is formaldehyde free.