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3M 9490LE CIRCLE-0.438"-250

Description
TAPE DBL COATED 7/16" DIA 250/RL
Categoryaccessories   
File Size138KB,4 Pages
Manufacturer3M
Websitehttp://3M.com/esd
Environmental Compliance
Download Datasheet Parametric View All

3M 9490LE CIRCLE-0.438"-250 Overview

TAPE DBL COATED 7/16" DIA 250/RL

3M 9490LE CIRCLE-0.438"-250 Parametric

Parameter NameAttribute value
Tape typeDouble coated, double sided
AdhesiveAcrylic, 300LSE; Acrylic, 300MP
base fabric, carrierCarrier - Polyester, Lining - Polyethylene coated kraft paper
thickness0.0067"(6.7 mils,0.170mm)
Thickness - Adhesive0.0062"(6.2 mils,0.157mm)
Thickness - base fabric, carrier0.0005"(0.5 mils,0.013mm)
width0.44" (11.13mm) 7/16" diameter
length-
colortransparent
use-
temperature range200°F (93°C) maximum
shelf life24 months
Shelf life start dateManufacturing date
Technical Data
November 2011
3M
Double Coated Tape 9490LE
Product Description
3M™ Double Coated Tape 9490LE with 3M™ Laminating Adhesive 300LSE provides high bond strength to most surfaces,
including many low surface energy plastics such as polypropylene and powder coated paints. The acrylic adhesive also
provides excellent adhesion to surfaces contaminated lightly with oil typically used with machine parts. 3M double coated
tape 9490LE offers the added feature of 3M™ Laminating Adhesive 300MP on one side to provide excellent bond strength
to a variety of foam and fabric materials.
Construction
Product
Number
3M™ Double
Coated Tape
9490LE
4
Faceside
1
Adhesive
Thickness
2.8 mil
(0.071mm)
Carrier
Type/
Thickness
Clear PET
3
0.5 mil
(0.013mm)
Backside
2
Adhesive
Thickness
3.4 mil
(0.086mm)
Liner
Color, Type,
Print
Tan, 58#,
Polycoated Kraft
“3M 300LSE”
Liner
Caliper
4.2 mil
(0.11mm)
Total Tape
Thickness
(w/o liner)
6.7 mil
(0.17mm)
Note 1: Faceside (FS) adhesive 300MP is on the interior of the roll, exposed when unwound.
Note 2: Backside (BS) adhesive 300LSE is on the exterior of the roll, exposed when liner is removed.
Note 3: PET (Polyester).
Note 4: The caliper listed is based on a calculation from manufacturing controlled adhesive coat weights using a density of 1.012 g/cc.
Features
• This tape has a moisture resistant polycoated kraft liner which can withstand high humidity conditions with minimal
cockling or wrinkling.
• This tape has a film carrier which can add dimensional stability to foams and other substrates and also make it easier to
handle the tape during slitting and die-cutting.
• The bond strength of 3M™ Laminating Adhesive 300LSE increases as a function of time and temperature, and has very
high initial adhesion.
Application Ideas
• Foam attachment for electronic assemblies.
• Low surface energy substrates.
• Graphic attachment of high surface energy and low surface energy.
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