3M 9671

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Description for 3M 9671

Offer excellent adhesion to a wide variety of surfaces, including low surface energy plastics and foam.

Application Type	Bond, Laminate, Lamination to foam for gasket application
1 Part or 2 Part	1 Part
Material Form	Transfer Tape
Substrate	Aluminum, Metal, low surface energy plastics, High surface energy plastic (polycarbonate), Low surface energy plastic (polypropylene), Stainless Steel, High Surface Energy plastics
Industry	Electronic markets, Automotive
Manufacturer	3M
Chemistry	Acrylic
Cure Method	Pressure Sensitive
Color	Tan
Chemical Resistance	oil, mild acids, alkalis, Water resistance, Chemical Resistance
High Temperature Resistance (°C)	Heat Resistance, <121, <66
Low Temperature Resistance (°C)	-40
Other Resistance	Temperature Cycling Resistance
Key Specifications	UL 969, Mil-Spec (United States Military Standard): P-19834B: Meets Mil-P 19834B Type 1.

Best Practices for 3M 9671

*See Terms of Use Below

Surface Preparation

For maximum bond strength (during installation of the final part) the surface should be thoroughly cleaned and dried. Typical cleaning solvents are heptane (for oily surfaces) or isopropyl alcohol for plastics. Use reagent grade solvents since common household materials like rubbing alcohol frequently contain oils to minimize the drying affect on skin. These oils can interfere with the performance of a pressure-sensitive adhesive.

Consult solvent manufacturers MSDS for proper handling and storage instructions. Also, use disposable wipes that do not contain oils, to remove the cleaning solvents.
Application

It is necessary to provide pressure during lamination (1.5-20 PLI recommended) and during final part installation (10-15 PLI) to allow to adhesive the come into direct contact with the substrate. Using a hard edged plastic tool, which is the full width of the laminated part, helps to provide the necessary pressure at the point of lamination. Heat can increase bond strength when bonding to metal parts (generally this same increase is observed at room temperature over longer times, weeks). For plastic parts, the bond strength is not enhanced with the addition of heat.

Application is not recommended if the surface temperature is below 50°F (10°C) because the adhesive becomes too firm to adhere readily. Once properly applied, at the recommended application temperature, low temperature holding is generally satisfactory.

When bonding a thin, smooth, flexible material to a smooth surface, it is generally acceptable to use 2 mils of adhesive. If a texture is visible on one or both surfaces, the 5 mil adhesive would be suggested. If both materials are rigid, it may be necessary to use a thicker adhesive to successfully bond the components. 3M™VHB™Acrylic Foam Tapes may be required.

To apply adhesives in a wide web format, lamination equipment is required to ensure acceptable quality.
Curing

Heat can increase bond strength when bonding to metal parts (generally this same increase is observed at room temperature over longer times, weeks). For plastic parts, the bond strength is not enhanced with the addition of heat

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Technical Data

Overview

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Specifications

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Best Practices

*See Terms of Use Below
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Comparable Materials

*See Terms of Use Below
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Peel Strength Test Methods

Peel Strength	Type	Substrate	Test Time	Test Temperature	Test Method
52 (Oz./In.)	90° Peel Strength	Stainless Steel	15 min		ASTM D-3330 (Modified);2 mil Aluminum Foil Backer
31 (Oz./In.)	90° Peel Strength	ABS	15 min	25°C	ASTM D-3330 (Modified);2 mil Aluminum Foil Backer
45 (Oz./In.)	90° Peel Strength	Polypropylene	15 min	25°C	ASTM D-3330 (Modified);2 mil Aluminum Foil Backer
59 (Oz./In.)	90° Peel Strength	Stainless Steel	4,320 min	25°C	ASTM D-3330 (Modified);2 mil Aluminum Foil Backer
34 (Oz./In.)	90° Peel Strength	ABS	4,320 min	25°C	ASTM D-3330 (Modified);2 mil Aluminum Foil Backer
52 (Oz./In.)	90° Peel Strength	Polypropylene	4,320 min	25°C	ASTM D-3330 (Modified);2 mil Aluminum Foil Backer

High Temperature Resistance Test Methods

High Temperature Resistance	Test Method
<121°C	Short periods (minutes, hours)
<66°C	Intermittent longer periods (days, weeks)
Heat Resistance

Dielectric Constant Test Methods

Dielectric Constant	Test Method
3.21	(at 1 KHz) ASTM D150-92

Dielectric Strength Test Methods

Dielectric Strength	Test Method
340 V/mil	(500 vac, rms [60 hz/sec]) ASTM D149-92

Coefficient of Thermal Expansion (CTE) Test Methods

Coefficient of Thermal Expansion (CTE)	CTE Test Method
20e-5 (m/m/°C)	ASTM D696, first heat
58e-5 (m/m/°C)	ASTM D696, second heat

3M 9671

Description for 3M 9671

Best Practices for 3M 9671

Surface Preparation

Application

Curing

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Why register?

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Technical Data

Overview

amet.

amet aliquam sed dolore.

elit aliquam.

erat consectetuer nonummy.

nonummy ut aliquam.

Specifications

aliquam aliquam dolor magna.

dolor aliquam.

adipiscing.

aliquam nonummy laoreet laoreet.

euismod elit consectetuer sed.

Best Practices

consectetuer sed magna dolor lorem magna.

aliquam laoreet dolor magna.

adipiscing ipsum sed tincidunt magna consectetuer.

elit tincidunt adipiscing.

Comparable Materials

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Peel Strength Test Methods

High Temperature Resistance Test Methods

Dielectric Constant Test Methods

Dielectric Strength Test Methods

Coefficient of Thermal Expansion (CTE) Test Methods

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