3M

3M 433L Silver Premium Performance Aluminum Foil Tape

3M™ High Temperature Aluminum Foil Tape 433L is designed to operate in several high heat applications. Silver. Linered version of Tape 433. Aluminum foil backing with silicone adhesive. Meets FAR 25.853(a)

Linered version of 3M™ High Temperature Aluminum Foil Tape 433
Can withstand limited exposure up to 600°F for heat shielding applications
Thermally conductive tape helps dissipate heat to protect temperature sensitive materials

Color: Silver

Liner Material: PET Film

Backing/Carrier Material: Dead Soft Aluminum Foil

Adhesive Type: Silicone

TotalThickness: 3.6 mil

Overview
Customize
Features
Specifications
Compliance
Resources

Overview

Consult

Specify a finalized design or create a new one from scratch with our experienced converting experts.

Design

Pair our material sampling library with our precision converting capabilities to optimize and validate a prototype.

Produce

Rely on our top-tier suppliers, strict quality controls, and hands-on help to ensure your product's effectiveness throughout its lifecycle.

Customize

Customize This Material

Our wide range of converting capabilities allow us to take this material and transform it into the right width, length, shape or fabricated part to not only achieve ideal integration into your end use, but also optimize how you apply the material in your application. Our converting equipment paired with our expert engineering team will help you create the exact custom solution for your unique requirements.

To learn more about the most common converting services we offer, or to contact our team to start discussing your solution, please utilize the below links:

Tape Slitting

Die-Cutting

Custom Part Fabrication

Prototyping

Custom Length Rolls

Features

Linered version of 3M™ High Temperature Aluminum Foil Tape 433
Can withstand limited exposure up to 600°F for heat shielding applications
Thermally conductive tape helps dissipate heat to protect temperature sensitive materials
Can be used to improve heating and cooling efficiency
Dead soft aluminum foil backing conforms to curved and uneven surfaces
Flame resistant – meets requirements of F.A.R. 25.853(a)
Silicone adhesive bonds well to a variety of surfaces and excels in high temperature applications, where other adhesive tapes may fail

Specifications

Color	Silver
Backing/Carrier Material	Dead Soft Aluminum Foil
Adhesive Type	Silicone
Total Thickness	3.6 mil
Backing/Carrier Thickness	2 mil
Adhesive Thickness	1.6 mil
Liner Material	PET Film
Liner Thickness	2.9 mil
Adhesive Strength	40 oz/in
Tensile Strength	20 lb/in
Elongation	3.50%
Minimum Temperature Performance	-65°F
Maximum Temperature Performance	600°F

Compliance

We value the importance of up to date an accurate regulatory information on the products we work with. For the most current Compliance and Regulatory information on your product of interest, please contact our experts for assistance.

Resources

Technical Data Sheet

3M™ High Temperature Aluminum Foil Tape 433L is an insulation tape engineered for demanding heat shielding applications. This includes wrapping over and along thermal insulation.

Made with aluminum foil and coated with a clear silicone pressure-sensitive adhesive, this insulating tape conforms easily to irregular surfaces and provides excellent heat reflectivity. Delivers strong, long-lasting bonds on a wide range of surfaces.

High temperature heat shielding applications
Wrapping over and along thermal insulation
Covering heating elements or wires to distribute heat
Heat reflective wrap along or over insulations, applied to tubes, engine support structures, missile ground handling equipment, or as a protector from other heat source areas such as hot areas in steel mills
Good holding, splicing, patching, or general protecting tape for many applications involving high temperatures
Holding the last lap of narrow width rolls during the metal annealing process
Splicing jumbo rolls of aluminum foil

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