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ARMSTRONG Ceiling Tile: 578B, Cirrus, 24 in x 24 in, Angled Tegular, 15/16 in Grid Size - General Purpose Tiles
ARMSTRONGGeneral Purpose Tiles

ARMSTRONG Ceiling Tile: 578B, Cirrus, 24 in x 24 in, Angled Tegular, 15/16 in Grid Size

The ARMSTRONG Ceiling Tile 578B is a Cirrus series general-purpose tile in a 24 in x 24 in Angled Tegular edge type for 15/16 in grid systems, sold in a 12-pack. Made of mineral fiber with a white finish, it offers…

SKU 3G-OTH-571319

Brand
ARMSTRONG
Item
Ceiling Tile: 578B, Cirrus, 24 in x 24 in, Angled Tegular, 15/16 in Grid Size
Category
General Purpose Tiles
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Technical Specifications

ARMSTRONG
Manufacturer Part Number
578B
Series
Cirrus
Type
Cirrus, 24 in x 24 in, Angled Tegular, 12 PK
Material
Mineral Fiber
Color
White
Edge Type
Angled Tegular
Grid Size
15/16 in
Application
Libraries
Display Sell UOM
PK
Resistance Properties
Mildew Resistant
Recycled Content Range
High Recycled Content (50% or More)
Light Reflectance Range
High Light Reflectance (83% or More)
View Full Spec Sheet

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ARMSTRONG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The ARMSTRONG Ceiling Tile 578B is a Cirrus series general-purpose tile in a 24 in x 24 in Angled Tegular edge type for 15/16 in grid systems, sold in a 12-pack. Made of mineral fiber with a white finish, it offers high light reflectance (83% or more) and mildew resistance, with high recycled content (50% or more), designed for library applications.

Frequently Asked Questions

What is the ARMSTRONG 578B ceiling tile used for?

The ARMSTRONG 578B Cirrus ceiling tile is designed for general-purpose acoustic and light-reflective ceilings in libraries and similar quiet environments. Its mineral fiber construction provides mildew resistance and high light reflectance (83% or more), supporting comfortable, well-lit spaces.

What are the specifications of the ARMSTRONG 578B ceiling tile?

The ARMSTRONG 578B is a 24 in x 24 in Cirrus series tile with an Angled Tegular edge for 15/16 in grid systems. It is made of mineral fiber, white in color, and sold in a 12-pack. It offers high recycled content (50% or more) and high light reflectance (83% or more).

Where to buy ARMSTRONG 578B ceiling tiles worldwide?

3G Electric supplies the ARMSTRONG 578B ceiling tile to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this 12-pack of Cirrus tiles.

How to install ARMSTRONG 578B ceiling tiles?

Install ARMSTRONG 578B tiles by fitting the Angled Tegular edge into a 15/16 in exposed grid system. Ensure the grid is level and clean. Gently tilt the tile upward, seat the edge, and lower into place. Follow standard suspended-ceiling best practices for mineral fiber tiles.

Used in

Common applications for ARMSTRONG
Hydronic heating systems — ARMSTRONG general-purpose inline circulator pump 182202-657 for potable water circulation
Pump motor replacement — ARMSTRONG pump motor 817025-007 for S&H 4-Series circulator pumps
Flange installation on E32.2HT pumps — ARMSTRONG flange hardware kit 810120-353K with steel bolts and rubber gaskets
Bearing replacement in H-32 series pumps — ARMSTRONG bearing assembly 816549MF-091 for in-line circulating pumps
Piping system connections — ARMSTRONG standard flanges 806074-621k for H-6 6 model with stainless steel and EPDM
Retrofit of pump flanges — ARMSTRONG flange 561100LF-001 for ASTRO EXPRESS 2 SYSTEM union-type connections

ARMSTRONG Products

3G Electric supplies ARMSTRONG general purpose tiles. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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ARMSTRONG Ceiling Tile: 1762C, Fine Fissured, 24 in x 48 in, Angled Tegular, 0.55 NRC, 35 CAC, 10 PK. Key specifications — Display Sell UOM: PK; Material: Mineral Fiber; Color: White; Application: Libraries; Resistance Properties: Mold Resistant; Series: Fine Fissured; Edge Type: Angled Tegular; Manufacturer Part Number: 1762C.
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ARMSTRONG Ceiling Tile: 2824AN, Calla, 24 in x 24 in, Square Tegular, 9/16 in Grid Size, 10 PK. Key specifications — Display Sell UOM: PK; Material: Mineral Fiber; Color: White; Application: Language Room; Resistance Properties: Soil Resistant; Series: Calla; Edge Type: Square Tegular; Manufacturer Part Number: 2824AN.
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ARMSTRONG Ceiling Tile: 2824AN, Calla, 24 in x 24 in, Square Tegular, 9/16 in Grid Size, 10 PK. Key specifications — Display Sell UOM: PK; Material: Mineral Fiber; Color: White; Application: Language Room; Resistance Properties: Soil Resistant; Series: Calla; Edge Type: Square Tegular; Manufacturer Part Number: 2824AN.
ARMSTRONG Ceiling Tile: 1766C, Fine Fissured, 24 in x 48 in, Angled Tegular, 0.55 NRC, 30 CAC, 10 PK. Key specifications — Display Sell UOM: PK; Material: Mineral Fiber; Color: White; Application: Libraries; Resistance Properties: Mold Resistant; Series: Fine Fissured; Edge Type: Angled Tegular; Manufacturer Part Number: 1766C.
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ARMSTRONG Ceiling Tile: 1766C, Fine Fissured, 24 in x 48 in, Angled Tegular, 0.55 NRC, 30 CAC, 10 PK. Key specifications — Display Sell UOM: PK; Material: Mineral Fiber; Color: White; Application: Libraries; Resistance Properties: Mold Resistant; Series: Fine Fissured; Edge Type: Angled Tegular; Manufacturer Part Number: 1766C.
ARMSTRONG Ceiling Tile: 1830, Fine Fissured, 24 in x 48 in, Square Lay-In, 15/16 in Grid Size, 8 PK. Key specifications — Sub-brand: Fine Fissured; Display Sell UOM: PK; Material: Mineral Fiber; Color: White; Application: Music Rooms; Resistance Properties: Mildew Resistant; Series: Fine Fissured; Edge Type: Square Lay-In.
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ARMSTRONG Ceiling Tile: 1830, Fine Fissured, 24 in x 48 in, Square Lay-In, 15/16 in Grid Size, 8 PK. Key specifications — Sub-brand: Fine Fissured; Display Sell UOM: PK; Material: Mineral Fiber; Color: White; Application: Music Rooms; Resistance Properties: Mildew Resistant; Series: Fine Fissured; Edge Type: Square Lay-In.
ARMSTRONG Ceiling Tile: 1729A, Fine Fissured, 24 in x 48 in, Square Lay-In, 0.55 NRC, 35 CAC, 12 PK. Key specifications — Display Sell UOM: PK; Material: Mineral Fiber; Color: White; Application: Libraries; Resistance Properties: Sag Resistant; Series: Fine Fissured; Edge Type: Square Lay-In; Manufacturer Part Number: 1729A.
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ARMSTRONG Ceiling Tile: 1729A, Fine Fissured, 24 in x 48 in, Square Lay-In, 0.55 NRC, 35 CAC, 12 PK. Key specifications — Display Sell UOM: PK; Material: Mineral Fiber; Color: White; Application: Libraries; Resistance Properties: Sag Resistant; Series: Fine Fissured; Edge Type: Square Lay-In; Manufacturer Part Number: 1729A.
ARMSTRONG Ceiling Tile: 8009A, Tincraft, 24 in x 24 in, Flush Tegular, 9/16 in Grid Size, 8 PK. Key specifications — Display Sell UOM: PK; Material: Mineral Fiber; Color: White; Application: Hospitality; Resistance Properties: Sag Resistant; Series: Tincraft; Edge Type: Flush Tegular; Manufacturer Part Number: 8009A.
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ARMSTRONG Ceiling Tile: 8009A, Tincraft, 24 in x 24 in, Flush Tegular, 9/16 in Grid Size, 8 PK. Key specifications — Display Sell UOM: PK; Material: Mineral Fiber; Color: White; Application: Hospitality; Resistance Properties: Sag Resistant; Series: Tincraft; Edge Type: Flush Tegular; Manufacturer Part Number: 8009A.
ARMSTRONG Ceiling Tile: 1729ABL, Fine Fissured, 24 in x 48 in, Square Lay-In, 0.55 NRC, 12 PK. Key specifications — Display Sell UOM: PK; Material: Mineral Fiber; Color: Black; Application: Music Rooms; Resistance Properties: Mildew Resistant; Series: Fine Fissured; Edge Type: Square Lay-In; Manufacturer Part Number: 1729ABL.
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ARMSTRONG Ceiling Tile: 1729ABL, Fine Fissured, 24 in x 48 in, Square Lay-In, 0.55 NRC, 12 PK. Key specifications — Display Sell UOM: PK; Material: Mineral Fiber; Color: Black; Application: Music Rooms; Resistance Properties: Mildew Resistant; Series: Fine Fissured; Edge Type: Square Lay-In; Manufacturer Part Number: 1729ABL.
ARMSTRONG Ceiling Tile: 3153, Optima, 24 in x 48 in, Square Lay-In, 15/16 in Grid Size, 12 PK. Key specifications — Display Sell UOM: PK; Material: Fiberglass; Color: White; Application: Libraries; Resistance Properties: Impact Resistant; Series: Optima; Edge Type: Square Lay-In; Manufacturer Part Number: 3153.
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ARMSTRONG Ceiling Tile: 3153, Optima, 24 in x 48 in, Square Lay-In, 15/16 in Grid Size, 12 PK. Key specifications — Display Sell UOM: PK; Material: Fiberglass; Color: White; Application: Libraries; Resistance Properties: Impact Resistant; Series: Optima; Edge Type: Square Lay-In; Manufacturer Part Number: 3153.