Rubber Foam Pipe

Home / Products / Rubber Foam / Rubber Foam Pipe

Rubber Foam Pipe

Shenzhou Class O/Class 1 Rubber Pipe Insulation is a kind of flexible insulation material with completely closed cell, whichis mainly made of nitrile but a diene rubber. The product has excellent thermal performance. Foam Rubber Insulation Pipes are widely used invarious public places, industrial plants,clean rooms,medical scenes, education scenes and others cenes.

Inquire Now

Next Product

Closed Cell Rubber Pipe Insulation

Closed Cell Rubber Pipe Insulation is a flexible, lightweight elastomeric thermal insulation material designed for insulating chilled water lines, heating pipes, ductwork, tanks, and vessels. Its expanded closed-cell structure forms an effective vapor barrier that prevents condensation (“sweating”) on cold pipelines and helps avoid frost formation in refrigeration and chilled water systems. At the same time, it efficiently reduces heat loss in hot piping systems.

Thanks to its dense surface layer and closed-cell structure, the material maintains stable thermal conductivity during long-term service. Rubber Insulation for Pipes provides a fast, efficient, and reliable solution for pipe insulation in HVAC, plumbing, hot water heating, air conditioning, and refrigeration systems. It is highly flexible and easy to install on both pipes and tubing.

In addition to thermal performance, the Rubber Insulation for Pipes also helps protect pipes against corrosion and acts as a vibration dampener. A light talcum powder coating on the inner surface supports easier installation and faster pre-assembly in production or on-site applications.

Installation Recommendations

Rubber Foam Pipe and Tubing Installation

Closed cell rubber foam pipe insulation provides a quick and efficient method for insulating refrigeration, cooling, and heating pipelines. Installation should be carried out on dry, clean, and unheated pipes.

Two main installation methods are commonly used:

· Slip-on method: used for new pipes before installation or system assembly
· Snap-on method: used for existing installed piping systems

The tubing can be easily cut and shaped for fittings such as elbows, tees, and bends. For threaded fittings, sleeve covers should be made using insulation of the same thickness as the pipe, ensuring proper overlap with the existing insulation layer.

It is important not to compress the rubber foam insulation material, as this may reduce its thermal performance and lead to condensation risks. Always select the correct size, avoid stretching, and ensure full coverage without tension. All seams and joints should be properly sealed to maintain insulation integrity.

Key Properties of Rubber Pipe Insulation

· Low thermal conductivity (low K-value), ensuring high insulation efficiency for heating and cooling systems

· Suitable temperature range: -40°C to 105°C

· Free from CFC, asbestos, chlorine, and fibers; safe and non-allergenic to skin
· Chemically inert and compatible with most pipe metals

· High mechanical strength; resistant to tearing, impact, and rough handling

· Maintains performance under harsh site conditions

· At -25°C, the material becomes harder, but thermal performance and vapor resistance remain unaffected
· With increasing temperature up to 105°C, it maintains stable insulation performance

· Smooth surface provides a clean and aesthetic finish; no additional coating required for most indoor applications

· Excellent resistance to ozone and ultraviolet (UV) exposure

Tube Speciﬁcations and Models Table

Suitable for Tube Sizes			Inside Diameter	Insulation Wall Thickness(mm)
（in） Outer Diameter of Copper Pipe	（DN） Galvanized Pipe Nominal	（mm） Seamless Pipe Outside Diameter	（mm） Rubber Foam Inside Diameter	9	15	20		25	32	40	50
1/4 "	— —	— —	6	6X9 10X9 13X9 16X9 19X9 22X9 25X9 27X9 32X9 34X9 38X9 43X9 48X9 57X9 60X9	6X15 10X15 13X15 16X15 19X15 22X15 25X15 27X15 32X15 34X15 38X15 43X15 48X15 57X15 60X15 76X15 89X15 108X15		6X20 10X20 13X20 16X20 19X20 22X20 25X20 27X20 32X20 34X20 38X20 43X20 48X20 57X20 60X20 76X20 89X20 108X20	13X25 16X25 19X25 22X25 25X25 27X25 32X25 34X25 38X25 43X25 48X25 57X25 60X25 76X25 89X25 108X25	16X32 19X32 22X30 25X32 27X32 32X32 34X32 38X32 43X32 48X32 57X30 60X30 76X30 89X30 108X30	25X40 27X40 32X40 34X40 38X40 43X40 48X40 57X30 60X30 76X30 89X30 108X30	25X50 27X50 32X50 34X50 38X50 43X50 48X50 57X30 60X30 76X30 89X30 108X30
3/8 "	6	— —	10
1/2 "	— —	— —	13
5/8 "	8	14	16
3/4 "	— —	— —	19
7/8 "	15	22	22
1 "	— —	25	25
1-1/8 "	20	28	28
1-1/4 "	— —	32	32
— —	— —	— —	34
1-1/2 "		38	38
1-5/8 "	32	— —	43
1-7/8 "	40	— —	48
2-1/4 "	— —	57	57
2-3/8 "	50	— —	60
— —	70	76	76
— —	80	89	89
— —		108	108

Sheet Speciﬁcations and Models Table

Test Items	Length(m)	Width（m）	Area（m2）
10mm	20	1	20
15mm	10	1.2	12
15mm	8	1.5
20mm	10	1.2
20mm	8	1.5
25mm	10	1.2
25mm	8	1.5
30mm	10	1.2
30mm	8	1.5

Note:

1. Pipe length is 2m, diameter is larger than 100mm, rubber foam sheet will be adviced.

2. Double-layer or multi-layer installation is recommended when the insulation layer is larger than 50mm.

3. The above speciﬁcations are commonly used speciﬁcations, products for black , such as special speciﬁcations and colors, to communicate with the sales staﬀ to

customize.

4. The materials should be stored in a clean and dry place in a normal room with a relative humidity of 50-70% and an ambient temperature of 0-35 °C.

Technical Data Sheet

Test Items	Performance Indicators				Compliance Standards
Density	≤95 kg/m3				GB/T 6343-2009
Service Temperature	-40℃ to 105℃
Thermal Conductivity	Average Temp.	-20℃	0℃	+25℃	GB/T 10294-2008 ASTM C518 ASTM C177
	W/m.K	0.032	0.034	0.036
Water Vapour Permeability	< 4.0 x 10-11g/(m.s.Pa) u ≥4500				GB/T 17146-2015
Water Absorption by Volume	≤0.50%				GB/T 17794-2021
Reaction to Fire	B1 grade（C-s3，d0，t1）				GB 8624-2012
	Class 1				BS 476-7
	V-0，sVA/ HF-1，Self Extinguishing，Does not Drip				UL94
Oxygen Index	≥32				GB/T 2406-2008
Smoke Density Class	≤75				GB/T 8627-2007
Compression Rebound Rate	≥ 70%				GB/T 6669-2001
Dimension Stability	≤10.0%				GB/T 8811-2008
Aging Resistance	Slightly Crumpling, No cracks, No pin holes, Not deforming				GB/T 16259-2008
Ozone Resistance Corrosion Resistance Environment	Good No Corrosion Dust and Fibre Free CFC Free, Tero ODP, Zero GWP

What industries use rubber insulation for pipes?

· HVAC engineering and contracting
· Construction and building services
· Petrochemical and industrial plants
· Cold storage and refrigeration industries
· Shipbuilding and marine systems

Frequently Asked Questions (FAQ) About Foam Rubber Pipe Insulation & Rubber Insulation for Pipes

What is foam rubber pipe insulation? ⌄

Foam rubber pipe insulation is a flexible, closed-cell elastomeric insulation material designed to wrap around pipes to reduce heat loss and prevent condensation. It is commonly used in HVAC, chilled water systems, refrigeration lines, and hot water piping. Its structure contains millions of sealed air cells that block heat transfer and moisture penetration, making it highly efficient for energy-saving applications.

What is the difference between foam rubber insulation and regular foam pipe insulation? ⌄

Foam rubber insulation (elastomeric insulation) is denser, more flexible, and offers better moisture resistance compared to standard polyethylene foam. It is specifically designed to act as both thermal insulation and a vapor barrier, making it ideal for condensation-heavy environments such as chilled water and HVAC systems. Regular foam insulation is typically more cost-effective but has lower performance in high-humidity or industrial applications.

Where is rubber pipe insulation commonly used? ⌄

Rubber insulation for pipes is widely used in HVAC duct and piping systems, chilled water and refrigeration lines, hot water distribution systems, industrial piping networks, commercial buildings, hospitals, and data centers. It is especially important in environments where condensation control is critical.

Why is closed-cell structure important in foam rubber insulation? ⌄

The closed-cell structure prevents water absorption and minimizes heat transfer by trapping air inside sealed cells. This improves thermal resistance and ensures long-term performance. It also helps prevent corrosion under insulation (CUI), mold growth, and energy loss in piping systems.

Can foam rubber pipe insulation prevent condensation? ⌄

Yes. Foam rubber insulation acts as a vapor-tight barrier that prevents moisture from forming on cold pipe surfaces. This helps avoid dripping, corrosion, and structural damage in HVAC and refrigeration systems.

Is rubber insulation suitable for both hot and cold pipes? ⌄

Yes. It can be used for hot water lines to reduce heat loss and cold lines to prevent heat gain and condensation. Its wide operating temperature range makes it suitable for industrial and commercial systems.

What are the advantages over fiberglass insulation? ⌄

Foam rubber insulation offers better moisture resistance, easier installation, higher flexibility, cleaner handling (non-fibrous), and superior performance in chilled water systems compared to fiberglass.

How long does rubber pipe insulation last? ⌄

High-quality elastomeric insulation typically lasts 10–25 years depending on installation quality, UV exposure, and operating conditions. Outdoor use requires UV protection for extended durability.

Can foam rubber insulation be used outdoors? ⌄

Yes, but it must be UV-protected. Outdoor installations require protective coatings or jacketing to prevent degradation from sunlight exposure.

Is installation easy? ⌄

Yes. Most products are slit tubes with self-adhesive or snap-fit seams. They can be installed quickly without special tools, making them ideal for contractors and maintenance teams.