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ARMSTRONG Fine Fissured Ceiling Tile 1861B - General Purpose Tiles
ARMSTRONGGeneral Purpose Tiles

ARMSTRONG Fine Fissured Ceiling Tile 1861B

The ARMSTRONG Ceiling Tile 1861B is a general-purpose mineral fiber tile in the Fine Fissured series, sized 24 in x 48 in with an Angled Tegular edge, sold in packs of 8. It offers a Noise Reduction Coefficient (NRC)…

SKU 3G-OTH-571332

Also listed as: 1861 B · 1861-B

Brand
ARMSTRONG
Item
Fine Fissured Ceiling Tile 1861B
Part Number
1861B
Category
General Purpose Tiles
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Technical Specifications

ARMSTRONG
Manufacturer Part Number
1861B
Series
Fine Fissured
Type
Fine Fissured, 24 in x 48 in, Angled Tegular, 8 PK
Material
Mineral Fiber
CAC
35
NRC
0.55
Color
White
Edge Type
Angled Tegular
Application
Music Rooms
Display Sell UOM
PK
Resistance Properties
Mold Resistant
Recycled Content Range
High Recycled Content (50% or More)
Light Reflectance Range
Standard Light Reflectance (82% or Less)

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

Product Description

The ARMSTRONG Ceiling Tile 1861B is a general-purpose mineral fiber tile in the Fine Fissured series, sized 24 in x 48 in with an Angled Tegular edge, sold in packs of 8. It offers a Noise Reduction Coefficient (NRC) of 0.55 and a Ceiling Attenuation Class (CAC) of 35, is mold resistant, and is specified for music rooms.

Frequently Asked Questions

What is the ARMSTRONG 1861B ceiling tile used for?

The ARMSTRONG 1861B Fine Fissured ceiling tile is designed for music rooms and general-purpose spaces needing acoustic control. With a 0.55 NRC and 35 CAC, it absorbs sound and blocks noise between rooms. Its mineral fiber construction is mold resistant, making it suitable for environments where moisture and acoustics matter.

What are the specifications of the ARMSTRONG 1861B ceiling tile?

The ARMSTRONG 1861B is a 24 in x 48 in mineral fiber tile with an Angled Tegular edge, sold in packs of 8. It has a Noise Reduction Coefficient (NRC) of 0.55 and a Ceiling Attenuation Class (CAC) of 35. The tile is white, mold resistant, and part of the Fine Fissured series with high recycled content.

Where to buy ARMSTRONG 1861B ceiling tiles worldwide?

3G Electric supplies the ARMSTRONG 1861B 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 Fine Fissured tile, part number 1861B, for music room applications.

How to install ARMSTRONG 1861B ceiling tiles?

Install ARMSTRONG 1861B tiles in a standard suspended ceiling grid designed for 24 in x 48 in Angled Tegular edges. Ensure the grid is level and clean. Lay each tile into the grid, angling it upward to seat the tegular edge. Follow general mineral fiber tile handling guidelines to avoid breakage and maintain acoustic performance.

Used in

Common applications for ARMSTRONG
Healthcare isolation rooms — Armstrong Calla 2820A sealed system tiles for acoustic control and cleanability
Commercial office ceilings — Armstrong Prelude main beams and cross tees for suspension framing
Hydronic heating systems — Armstrong E23.2 inline circulator pump for potable water circulation
Pump maintenance — Armstrong seal kit 8975002-374K for bearing assembly replacement in circulator pumps
Cleanroom environments — Armstrong Calla 1353N sealed system tiles with mold resistance and high light reflectance
General-purpose interiors — Armstrong Calla 2822AN ceiling tiles for 15/16 in grid with square tegular edge
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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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Compatible alternatives & equivalents

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General-purpose mineral fiber ceiling tile from the Fine Fissured series, sized 24 in x 24 in with an Angled Tegular edge. Provides a Noise Reduction Coefficient (NRC) of 0.55 and Ceiling Attenuation Class (CAC) of 35. Fire resistive with high recycled content and high light reflectance. Suitable for library applications
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