Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
ARMSTRONG Fine Fissured Ceiling Tile 1861B - General Purpose Tiles
ARMSTRONGGeneral Purpose Tiles

ARMSTRONG Fine Fissured Ceiling Tile 1861B

<p>The ARMSTRONG Fine Fissured Ceiling Tile 1861B is a general purpose mineral fiber tile designed for acoustic performance and durability. With a CAC of 35 and NRC of 0.55, it effectively controls sound transmission…

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
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

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)

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

<p>The ARMSTRONG Fine Fissured Ceiling Tile 1861B is a general purpose mineral fiber tile designed for acoustic performance and durability. With a CAC of 35 and NRC of 0.55, it effectively controls sound transmission and absorption, making it suitable for music rooms and other noise-sensitive spaces. The tile features a fine fissured texture, white finish, and angled tegular edge for a clean, modern look. It is mold resistant and contains high recycled content (50% or more), supporting sustainability goals.</p><p>Each pack includes 8 tiles, sized 24 in x 48 in. As a Singapore-based supplier, 3G Electric offers SGD quotes on request, handles GST for local buyers, and provides fast delivery across Singapore and Southeast Asia. Contact us for pricing and availability.</p>

Frequently Asked Questions

What are the acoustic specifications of the ARMSTRONG Fine Fissured Ceiling Tile 1861B?

The tile has a CAC (Ceiling Attenuation Class) of 35 and an NRC (Noise Reduction Coefficient) of 0.55, making it effective for sound control in music rooms and similar applications.

Is the tile mold resistant and what is its recycled content?

Yes, the tile is mold resistant. It also has high recycled content, specifically 50% or more, which supports environmentally friendly building practices.

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
Not sure this is the right part? Photo-identify it

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
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
ARMSTRONG
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
Mineral fiber ceiling tile from the Fine Fissured series. White, 24 x 24 inches, angled tegular edge. NRC 0.7, CAC 40. Mildew resistant, high recycled content. Suitable for healthcare environments requiring sound control
ARMSTRONG
Mineral fiber ceiling tile from the Fine Fissured series. White, 24 x 24 inches, angled tegular edge. NRC 0.7, CAC 40. Mildew resistant, high recycled content. Suitable for healthcare environments requiring sound control
Mineral fiber ceiling tile, 24 in x 24 in, beige, Angled Tegular edge. NRC 0.55 for sound absorption. Fire resistive. High recycled content. Suitable for library and other quiet environments where acoustic control and fire safety are required. Sold in packs of 16
ARMSTRONG
Mineral fiber ceiling tile, 24 in x 24 in, beige, Angled Tegular edge. NRC 0.55 for sound absorption. Fire resistive. High recycled content. Suitable for library and other quiet environments where acoustic control and fire safety are required. Sold in packs of 16
Mineral fiber ceiling tile, 24 in x 48 in, angled tegular edge, white. Noise Reduction Coefficient 0.55, Ceiling Attenuation Class 35. Fire resistive, high recycled content (50% or more). Pack of 10. Suitable for library and other general purpose applications
ARMSTRONG
Mineral fiber ceiling tile, 24 in x 48 in, angled tegular edge, white. Noise Reduction Coefficient 0.55, Ceiling Attenuation Class 35. Fire resistive, high recycled content (50% or more). Pack of 10. Suitable for library and other general purpose applications

More from ARMSTRONG

View all ARMSTRONG parts
Fiberglass ceiling tile in Pebble series, white, 24 in x 48 in, square lay-in edge for 15/16 in grid. Sold in packs of 10. Scratch-resistant surface with high light reflectance (83% or more) and high recycled content (50% or more). Suitable for lavatories and restrooms
ARMSTRONG
Fiberglass ceiling tile in Pebble series, white, 24 in x 48 in, square lay-in edge for 15/16 in grid. Sold in packs of 10. Scratch-resistant surface with high light reflectance (83% or more) and high recycled content (50% or more). Suitable for lavatories and restrooms
General-purpose mineral fiber ceiling tile from the Ledges series. Measures 24 in x 24 in with a Flush Tegular edge for 9/16 in grid systems. Provides a CAC of 35 and is sag resistant. White finish with standard light reflectance. Suitable for retail and commercial spaces
ARMSTRONG
General-purpose mineral fiber ceiling tile from the Ledges series. Measures 24 in x 24 in with a Flush Tegular edge for 9/16 in grid systems. Provides a CAC of 35 and is sag resistant. White finish with standard light reflectance. Suitable for retail and commercial spaces
General-purpose mineral fiber ceiling tile from the Dune series, sized 24 in x 48 in with a beveled tegular edge for 9/16 in grid systems. Features a CAC of 35, mildew resistance, standard light reflectance (82% or less), and high recycled content (50% or more). Suitable for library applications where acoustic performance and moisture resistance are required
ARMSTRONG
General-purpose mineral fiber ceiling tile from the Dune series, sized 24 in x 48 in with a beveled tegular edge for 9/16 in grid systems. Features a CAC of 35, mildew resistance, standard light reflectance (82% or less), and high recycled content (50% or more). Suitable for library applications where acoustic performance and moisture resistance are required
Mineral fiber ceiling tile in white, 24 x 24 inches, square tegular edge for 15/16 in grid systems. High light reflectance (83% or more) and soil resistant. Suitable for music rooms and other commercial spaces requiring acoustic control
ARMSTRONG
Mineral fiber ceiling tile in white, 24 x 24 inches, square tegular edge for 15/16 in grid systems. High light reflectance (83% or more) and soil resistant. Suitable for music rooms and other commercial spaces requiring acoustic control
General-purpose ceiling tile made of mineral fiber with a fissured texture and white finish. Measures 24 in x 48 in with square lay-in edges for 15/16 in grid systems. Sag resistant with standard light reflectance. Suitable for commercial interiors such as offices, retail spaces, and corridors
ARMSTRONG
General-purpose ceiling tile made of mineral fiber with a fissured texture and white finish. Measures 24 in x 48 in with square lay-in edges for 15/16 in grid systems. Sag resistant with standard light reflectance. Suitable for commercial interiors such as offices, retail spaces, and corridors
Mineral fiber ceiling tile from the Cortega series, white finish, with Angled Tegular edge for 15/16 in grid systems. Fire resistive with high recycled content and standard light reflectance. Suitable for general purpose use in commercial interiors
ARMSTRONG
Mineral fiber ceiling tile from the Cortega series, white finish, with Angled Tegular edge for 15/16 in grid systems. Fire resistive with high recycled content and standard light reflectance. Suitable for general purpose use in commercial interiors
Mineral fiber ceiling tile, 24 x 24 in, Square Tegular edge, white. NRC 0.85, high light reflectance (83% or more), high recycled content (50% or more), mold resistant. Suitable for general-purpose acoustic ceiling applications in spaces requiring sound absorption and bright illumination
ARMSTRONG
Mineral fiber ceiling tile, 24 x 24 in, Square Tegular edge, white. NRC 0.85, high light reflectance (83% or more), high recycled content (50% or more), mold resistant. Suitable for general-purpose acoustic ceiling applications in spaces requiring sound absorption and bright illumination
Mineral fiber ceiling tile, white, 12 in x 12 in, with concealed edge for 15/16 in grid. Sold in 40-pack. Mold resistant with high light reflectance (83% or more) and high recycled content (50% or more). Suitable for music rooms and other general-purpose applications
ARMSTRONG
Mineral fiber ceiling tile, white, 12 in x 12 in, with concealed edge for 15/16 in grid. Sold in 40-pack. Mold resistant with high light reflectance (83% or more) and high recycled content (50% or more). Suitable for music rooms and other general-purpose applications

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first