What is the R value of the 1.18"?

This is a good question that unfortunately I cannot readily answer looking at the description of the item which states: Good thermal insulation Rubber insulation pipe adopts closed cell structure, low thermal conductivity, stable temperature, and has the function of thermal insulation.....if we take the verbiage they elect to use indicates it "adopts" closed cell structure. Really !? it adopts ? So is it or isn't it ? It goes on to say it "has the function of thermal insulation", well I would think so !! Proclaiming it has the function as opposed to stating that it has the function....perhaps something is getting lost in translation... If I take what they say literally, i.e. that the material is in fact "closed cell rubber" then the following would apply to your question: This is closed-cell foam rubber, on the other hand, becomes rigid upon application and has an R-value range of 6 to 7.

Can this be used on underground sewage lines?

I suppose it depends how far underground and what kind of material (rocks / aggregate / sand etc.) it would be exposed to, it would eventually break down over time and or get crushed from the weight / force around it... it's not designed to be buried under ground , if you do, you do so at your own risk...

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Water Pipe Insulation Tubing 3/4" 1" 1-1/4" 1-1/2" 2" 2-1/2" 3" 3-1/2" 4" Inner Diameter Foam Tube Insulation for 0.79"/1.18" Thick Wall Insulation Lagging Wrap(0.79",ID 1")

Water Pipe Insulation Tubing 3/4" 1" 1-1/4" 1-1/2" 2" 2-1/2" 3" 3-1/2" 4" Inner Diameter Foam Tube Insulation for 0.79"/1.18" Thick Wall Insulation Lagging Wrap(0.79",ID 1")

Product ID: 517052073

Details

Brand
Plerile
Item Thickness
0.79 Inches
Manufacturer
SYSMG
Material
Rubber
Recommended Uses For Product
Pipe water

🔥Flame retardant & weatherproof

🌡️Low thermal conductivity 0.79" thick

🛠️Fits 3/4" to 4" pipes, versatile sizing

¥7852

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Description

🔥 Wrap it right, save energy tight! 🌡️

EFFORTLESS INSTALLATION - Cut, glue, and wrap—no extra layers needed, saving you time and labor costs.
ULTIMATE THERMAL SHIELD - Closed-cell rubber foam locks in temperature, slashing heat loss and freezing risk.
BUILT FOR BRUTAL WEATHER - Industrial-grade flame retardant and waterproof design stands strong against snow, rain, and heat.
MULTI PURPOSE PROTECTION - Beyond pipes—ideal for fitness gear grips and hoses, blending utility with everyday convenience.
TAILORED FIT FOR EVERY PIPE - Comprehensive size range from 3/4" to 4" ensures perfect insulation for any project.

This premium rubber foam pipe insulation tubing offers a robust 0.79" thick closed-cell structure that delivers superior thermal insulation and weather resistance. Available in a full range of sizes from 3/4" to 4" inner diameter, it’s engineered for easy installation and versatile use—from protecting water pipes to enhancing grip on fitness equipment. Flame retardant, waterproof, and built to withstand extreme conditions, it’s the smart choice for professionals seeking reliable, energy-saving pipe protection.

Specifications

ASIN	B0BP26C7XB
Best Sellers Rank	#235,127 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #220 in Pipe Insulation
Brand Name	Plerile
Coverage	thermal insulation
Customer Reviews	4.0 4.0 out of 5 stars (175)
Item Thickness	0.79 Inches
Manufacturer	SYSMG
Manufacturer Part Number	DXKEJAEKZ-0990211B
Material Type	Rubber
Model Number	DXKEJAEKZ-0990211B
Recommended Uses For Product	Pipe protection, water pipe insulation, fitness equipment protection
Unit Count	1.0 Count

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¥7852

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

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TrustScore 4.5 | 7,300+ reviews

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