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ALSR-15 with Drawing Number: 1203


Specification No. 1203

Mil-Spec Aluminized Silicone Coated Fiberglass, Up to 260°C

  • High Temperature Heat Reflective Fiberglass
  • Good Fluid & Flame Resistance
  • Ideal For Military & Aerospace Applications
  • Round, Flat & Rectangular Shapes Available
  • Many Closure Types Available
  • -55 to 260°C Operating Limit

Raw materials are not sold separately, please contact the sales department for any special requirements.

Material Specifications

Available Attributes

Material Color Gray


Flat Thickness 0.015"
Flame Retardant 10 sec. (flame)
Shelf Life 60 months
Ratings SAE AMS-3673 A and B, FED-STD-191
Tear Strength 3 lbs/min (warp & fill)
Tensile Strength 150 lbs/min (warp) | 150 lbs/min (fill)
Material Type Aluminized Silicone-Coated Fiberglass
RoHS Compliant
Temperature Range -55° to 260°C (-67° to 500°F)
Thermal Effectiveness

Specifications subject to change without notice. All statements and technical information contained herein are based on tests we believe to be reliable, but the accuracy or completeness is not guaranteed under all circumstances. Before using Zippertubing® products, the user shall determine suitability for the intended use, and user assumes all responsibility for improper selection. Published attenuation values of Zippertubing® shielding have been verified by laboratory testing of the respective shielding materials. Actual installed attenuation values may differ due to installation techniques and final assembly operation parameters which are beyond the control of Zippertubing®. Actual attenuation values can only be determined by the end user testing the completed assembly. U.S. and International Patents and patents pending. © 2019 The Zippertubing® Company, Chandler, Arizona.

ALSR-15 is an extremely flexible, medium weight Silicone coated fiberglass cloth with a heat reflective Aluminized layer on one side that conforms to AMS-3673 formerly Mil-C-27347 and Naval Ordinance Specification 10001OS10591A. Designed to reflect over 90% of the thermal radiation from intense heat sources, this material makes an ideal high temperature jacketing system for electrical wires and cables. The Silicone rubber coating is fluid resistant, flame retardant and exhibits heat energy-absorbent properties which provide additional protection. ALSR-15 is ideal for high performance military and aerospace applications. The material has an operational temperature range of -55° to 260°C.

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