We ship to the Philippines — door-to-door, customs and logistics handled by 3G Electric

JOHNS MANVILLE High Temperature Insulation: Calcium Silicate, 24 in Lg, 4 ft W, 3/4 in Thick - Ceramic Fiber Insulation Boards
JOHNS MANVILLECeramic Fiber Insulation Boards

JOHNS MANVILLE High Temperature Insulation: Calcium Silicate, 24 in Lg, 4 ft W, 3/4 in Thick

The Johns Manville High Temperature Insulation: Calcium Silicate (SKU 638338, MPN 638338) is a ceramic fiber insulation board measuring 4 ft x 24 in with a thickness of 3/4 in and a density of 0.77. 3G Electric…

SKU 3G-OTH-742394

Brand
JOHNS MANVILLE
Item
High Temperature Insulation: Calcium Silicate, 24 in Lg, 4 ft W, 3/4 in Thick
Category
Ceramic Fiber Insulation Boards
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 — the Philippines

Delivery
5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment
Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to
Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

JOHNS MANVILLE
Manufacturer Part Number
638338
Type
4 ft W, 0.77, 4 ft x 24 in
Lg
24 in
Thick
3/4 in

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

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

Product Description

The Johns Manville High Temperature Insulation: Calcium Silicate (SKU 638338, MPN 638338) is a ceramic fiber insulation board measuring 4 ft x 24 in with a thickness of 3/4 in and a density of 0.77. 3G Electric sources this product across 14 industrial departments, with specialist expertise in combustion, pumps, and controls ensuring accurate specification and support.

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is Johns Manville calcium silicate insulation used for?

Johns Manville calcium silicate insulation is used for high-temperature industrial applications such as boilers, pipes, and furnaces. It provides thermal efficiency and fire protection in demanding environments. 3G Electric supplies this product globally, leveraging specialist expertise in combustion systems to ensure correct specification.

What are the specifications of Johns Manville 638338 insulation?

The Johns Manville 638338 calcium silicate insulation board measures 4 ft x 24 in with a thickness of 3/4 in and a density of 0.77. It is designed for high-temperature service. 3G Electric sources this and other insulation products across 14 industrial departments, with deep knowledge in combustion and controls.

Where to buy Johns Manville high temperature insulation worldwide?

3G Electric supplies Johns Manville high temperature insulation worldwide, handling logistics, customs, and delivery. As a global industrial solutions provider, we source this calcium silicate board (MPN 638338) and support your project with specialist expertise in combustion, pumps, and controls.

How to install Johns Manville calcium silicate insulation boards?

Install Johns Manville calcium silicate boards by cutting to size with a fine-tooth saw, fitting tightly against surfaces, and securing with mechanical fasteners or adhesive. Avoid gaps to maintain thermal performance. 3G Electric provides sourcing support and can advise on compatible accessories for your application.

Used in

Common applications for JOHNS MANVILLE
Commercial HVAC — Johns Manville duct wrap (FSK-faced fiberglass) used to insulate supply and return air ducts in office buildings.
Industrial process piping — Johns Manville Thermo-12 Gold calcium silicate insulation applied on high-temperature steam lines in power plants.
Refrigeration systems — Johns Manville fiberglass pipe insulation with vapor retarder used on chilled water lines to prevent condensation.
Manufacturing facilities — Johns Manville duct wrap installed on ventilation ducts in factories to maintain temperature control and reduce energy loss.
Data centers — Johns Manville insulation used on HVAC ductwork to manage cooling efficiency and humidity in server rooms.
Hospitality buildings — Johns Manville duct wrap applied in hotel HVAC systems for thermal comfort and noise reduction.

JOHNS MANVILLE Products

3G Electric supplies JOHNS MANVILLE ceramic fiber insulation boards. 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

More from JOHNS MANVILLE

View all JOHNS MANVILLE parts
High Temperature Insulation: Calcium Silicate, 24 in Lg, 4 ft W, 1/2 in Thick, 0.52, 4 ft x 24 in (MPN 638324)
JOHNS MANVILLE
High Temperature Insulation: Calcium Silicate, 24 in Lg, 4 ft W, 1/2 in Thick, 0.52, 4 ft x 24 in (MPN 638324)
High Temperature Insulation: Calcium Silicate, 12 in Lg, 12 in W, 1 1/2 in Thick, 1.54 (MPN 684703)
JOHNS MANVILLE
High Temperature Insulation: Calcium Silicate, 12 in Lg, 12 in W, 1 1/2 in Thick, 1.54 (MPN 684703)
High Temperature Insulation: Calcium Silicate, 4 ft Lg, 8 ft W, 1 in Thick, 1.03, 8 ft x 4 ft (MPN 638323)
JOHNS MANVILLE
High Temperature Insulation: Calcium Silicate, 4 ft Lg, 8 ft W, 1 in Thick, 1.03, 8 ft x 4 ft (MPN 638323)
High Temperature Insulation: Calcium Silicate, 4 ft Lg, 4 ft W, 1/2 in Thick, 0.52, 4 ft x 4 ft (MPN 638326)
JOHNS MANVILLE
High Temperature Insulation: Calcium Silicate, 4 ft Lg, 4 ft W, 1/2 in Thick, 0.52, 4 ft x 4 ft (MPN 638326)
High Temperature Insulation: Calcium Silicate, 4 ft Lg, 4 ft W, 1 in Thick, 1.03, 4 ft x 4 ft (MPN 638327)
JOHNS MANVILLE
High Temperature Insulation: Calcium Silicate, 4 ft Lg, 4 ft W, 1 in Thick, 1.03, 4 ft x 4 ft (MPN 638327)
High Temperature Insulation: Calcium Silicate, 24 in Lg, 4 ft W, 1 1/2 in Thick, 1.54, 4 ft x 24 in (MPN 684704)
JOHNS MANVILLE
High Temperature Insulation: Calcium Silicate, 24 in Lg, 4 ft W, 1 1/2 in Thick, 1.54, 4 ft x 24 in (MPN 684704)
High Temperature Insulation: Calcium Silicate, 4 ft Lg, 8 ft W, 1 1/2 in Thick, 1.54, 8 ft x 4 ft (MPN 638337)
JOHNS MANVILLE
High Temperature Insulation: Calcium Silicate, 4 ft Lg, 8 ft W, 1 1/2 in Thick, 1.54, 8 ft x 4 ft (MPN 638337)
High Temperature Insulation: Calcium Silicate, 12 in Lg, 12 in W, 1 in Thick, 1.03, 12 in x 12 in (MPN 676057)
JOHNS MANVILLE
High Temperature Insulation: Calcium Silicate, 12 in Lg, 12 in W, 1 in Thick, 1.03, 12 in x 12 in (MPN 676057)