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Withdrawn HPDs

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Expired: Armstrong MetalWorks DESIGNFlex/Armstrong World Industries/2018-05-29

Open the PDF · HPD 6056

HPD has expired. Expiration Date: 2021-05-29

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Expired: Armstrong Commercial Ceilings Ultima FireGuard/Armstrong World Industries/2017-09-21

Open the PDF · HPD 4291

HPD has expired. Expiration Date: 2020-09-21

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Expired: Armstrong Ceilings Calla/Armstrong World Industries/2019-12-19

Open the PDF · HPD 9726

HPD has expired. Expiration Date: 2022-09-20

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The smoothest finish mineral fiber ceiling available with Total Acoustics™ performance – excellent noise reduction and sound blocking in one product.
Expired: Armstrong Commercial Ceilings Lyra PB High CAC/Armstrong World Industries/2017-09-11

Open the PDF · HPD 4145

HPD has expired. Expiration Date: 2020-09-11

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Lyra PB High CAC Ceiling Panels/Armstrong World Industries/2025-09-23

Open the PDF · HPD 50875

Expiration Date: 2028-09-19

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Lyra™ High CAC ceilings provide Total Acoustics™ performance (noise reduction and sound blocking) in one ceiling panel to meet the demand of today's flexible spaces. These high light reflective, impact, scratch and soil resistance panels…
Expired: Armstrong Ceilings Calla/Armstrong World Industries/2021-12-13

Open the PDF · HPD 50320

HPD has expired. Expiration Date: 2023-09-16

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The smoothest finish mineral fiber ceiling available with Total Acoustics™ performance – excellent noise reduction and sound blocking in one product.
Expired: Armstrong Ceilings Optima PB/Armstrong World Industries/2021-12-13

Open the PDF · HPD 50196

HPD has expired. Expiration Date: 2023-09-09

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Optima ceiling family offers a fiberglass substrate made with a plant-based binder, formulated without formaldehyde resins that’s also rapidly renewable. Smooth textured Optima fiberglass ceiling systems provides excellent acoustical…

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