How is this sleeve measured? Are the listed sizes diameters or are they the measurements of the sleeve when layed flat?

Actually, the perimeter of a 3/4" diameter pipe is 2-3/8".

Will the 1.5 inch sleeve fit over a 1.5 inch radiator hose, or will it be too snug?

if the radiator hose is truly a 1.5" o.d and straight then yes it will fit, but if the hose expands as rubber does, then it will be greater than 1.5" and it may split the sleeve, If it is a curved hose then it will be greater than 1.5" o.d. in portions and the sleeve will not fit. You would not want to put this on a radiator hose as it would trap heat and not allow the radiator hose to radiate and dissipate heat properly. If the hose is not carrying hot water but merely used as a drain hose, then this is fine. This it meant to protect from radiant heat but also retains heat internally which could cause your rubber hose to fail prematurely and due to being obscured by the wrap you could not inspect the hose for sponginess, cracking or impending failure. Basically, not a good idea for that purpose.

What is the inside diameter

The product is in a roll. The diameter is what ever you make it.

Can this be used on the egr valve tube

Yes, the Design Engineering 010418 Heat Sheath can be used on the EGR valve tube. The inner diameter of the heat sheath is 0.5 inches, which is larger than the inner diameter of most EGR valve tubes (typically 0.4 inches). This means that the heat sheath will fit snugly over the EGR valve tube and provide protection from heat.

Design Engineering 010418 Heat Sheath 1 2 I D X

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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Description

🔥 Stay cool under pressure with the ultimate heat shield!

TAILORED LENGTHS - Trim to your exact needs—no waste, just perfect coverage every time.
ALL WEATHER SHIELD - Resists chemical spills, oil, dirt, and grime to keep your components pristine and safe.
EXTREME HEAT DEFENSE - Shield your cables from scorching 500°F direct and 2000°F radiant heat with confidence.
FLEXIBLE FIT FOR PRECISION - Pliable design bends effortlessly around tight spaces without compromising protection.
VERSATILE DIAMETER OPTIONS - Choose from five popular sizes to perfectly match your wiring and hose dimensions.

Design Engineering’s 010418 Heat Sheath is a premium aluminized sleeving engineered for professional-grade thermal insulation. Offering 3 feet of coverage, it withstands direct heat up to 500°F and radiant heat up to 2000°F, while its pliable aluminum fabric ensures easy installation around wires, cables, and hoses. Available in five diameters and customizable length, it’s the go-to solution for millennial managers demanding reliable, high-performance heat protection in automotive and industrial applications.

Specifications

ASIN	B000CEM3M2
Best Sellers Rank	#2,028 in Automotive ( See Top 100 in Automotive ) #1 in Automotive Heat Wrap, Matting & Sleeving
Brand	Design Engineering
Brand Name	Design Engineering
Coverage	3 feet linear coverage
Customer Reviews	4.7 out of 5 stars 1,183 Reviews
Global Trade Identification Number	00607078104182
Included Components	Design Engineering Heat Sheath Aluminized Sleeving 1/2" X 36" Line And Hose Protection - Sewn
Item Dimensions L x W	91.5L x 1.3W centimeters
Item Thickness	0.5 Inches
Item Type Name	Aluminized Sleeving for Ultimate Hi-Temp Protection
Item Weight	0.18 Pounds
Item thickness	0.5 Inches
Manufacturer	Design Engineering
Manufacturer Part Number	10418
Manufacturer Warranty Description	Not applicbale
Material	Aluminum
Material Type	Aluminum
Model Number	10418
Product dimensions	91.5L x 1.3W centimeters
Recommended Uses For Product	Thermal Insulation, High-Heat Protection
Recommended uses for product	Thermal Insulation, High-Heat Protection
UPC	607078104182
Unit Count	1 Count

Reviews

ا**ي

منتج جميل

منتج منتاز

26.02.2024

S**I

منتج جميل ومعروف بجودته 👍🏻

منتج جميل وممتاز وانصح فيه لعزل الاسلاك المعرضة للحرارة ⚠️ ملاحظة : عليك معرفة المقاسات الطول * العرض

14.12.2022

O**D

Works perfectly.

Used to keep parts of a wiring harness and fuel lines protected in high temperature areas. Works as it should and easy enough to work with.

17.04.2023

R**H

Wire sheathing heat resistant

So far this stuff works good for airlines to keep the heat away

24.03.2026

B**Z

Excelente calidad

Excelente funda protectora

27.08.2025

P**E

Great product

worked as descibed

23.02.2023

J**Y

Good quality wrap.

This stuff worked great to protect my vgt wiring for my turbo. This accidentally fell onto my turbo down pipe and saved me breaking down 6 hours from home. It did its job to a T.

16.01.2026

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