EEWORLDEEWORLDEEWORLD

Part Number

Search

3M 4991 9" X 9"-2

Description
TAPE DBL COAT GRAY 9"X 9" 2/PACK
Categoryaccessories   
File Size156KB,6 Pages
Manufacturer3M
Websitehttp://3M.com/esd
Environmental Compliance
Download Datasheet Parametric View All

3M 4991 9" X 9"-2 Overview

TAPE DBL COAT GRAY 9"X 9" 2/PACK

3M 4991 9" X 9"-2 Parametric

Parameter NameAttribute value
Tape typeDouble coated, double sided
Adhesiveacrylic acid
base fabric, carrierpolyethylene film
thickness0.0900"(90.0 mils,2.286mm)
Thickness - Adhesive0.0850"(85.0 mils,2.159mm)
Thickness - base fabric, carrier0.0050"(5.0 mils,0.127mm)
width9.00"(228.60mm)
length9.00"(228.60mm)
colorgrey
use-
temperature range200°F (93°C) maximum
shelf life24 months
Shelf life start dateShip date
3
3M VHB Tape Durability
TM
TM
Technical Bulletin
Summary
August, 2018
This bulletin addresses the long-term durability of 3M™ VHB™ Tapes and
their ability to perform in certain types of demanding environments. This
will be addressed from a variety of view-points including chemical
composition, resistance to harsh environments, 3M and independent tests
for product durability, and certain applications where 3M™ VHB™ Tape
products have demonstrated excellent ability to perform in demanding
applications. Test results on moisture resistance, UL durability,
accelerated weathering, outdoor weathering, thermal cycling and fatigue
resistance will be discussed.
3M is a technological leader in acrylate pressure sensitive adhesive (PSA)
technology. 3M™ VHB™ Tapes represent examples of 3M’s proprietary,
state-of-the-art chemistry. The long-term aging resistance lies in the
polymer comprising 3M™ VHB™ Tapes. The chemical bonds that make up
the polymer chains consist of carbon-carbon single bonds that are highly
resistant to energy in the form of heat or ultraviolet light, as well as
chemical attack. In less durable foams or adhesives, such conditions could
lead to cleaving of the polymer backbone and thus a weakening of
mechanical properties. In the case of acrylic adhesives and foams,
however, additional crosslinking is chemically favored over chain scission
(cleavage). This means that, rather than undergoing a process of
decomposition, the acrylate materials will tend to build modulus very
slightly over extended exposures. This translates to a stronger, long lasting
bond.
Temperature Exposure
Because of the demanding and diverse applications users have for
3M™ VHB™ Tapes, durability has always been a key interest in the
performance of these products. One of the first issues for tapes is
retention of tack and adhesion after exposure to elevated
temperatures. Bonds made with 3M™ VHB™ Tapes can tolerate
periodic, short- term exposures to temperatures up to 300°F (150°C)
for most Foam Tapes.
Composition
Durability Testing
Design considerations for a 500W Class D automotive subwoofer amplifier
Design considerations for 500W Class D automotive subwoofer amplifiersClass D designs promise higher output power within a given automotive electronics system volume. But converting to a Class D from ...
maker Automotive Electronics
【PLC based on the Internet of Things】---Purely handmade PLC controller
[i=s]This post was last edited by cpsiot on 2022-7-28 20:57[/i]Since this PLC involves many components, it took a lot of effort to collect all the components and modules. Thanks to my friends for prov...
cpsiot DigiKey Technology Zone
09.29 [Weekly Discussion] 12-year-old programming genius, a hero emerges young
12-year-old programming genius Tian Zhonghe, born in 1999, is 12 years old this year. He is the CEO and CTO (Technical Director) of Times Network Software Studio. He taught himself programming in the ...
longxtianya Integrated technical exchanges
F28027 simulates IIC program to drive MPU3050 gyroscope
As the title says, I am debugging the simulated IIC program of F28027 recently. Since the SCI and IIC of launchpad are on the same pin, I want to write the simulated IIC by myself by comparing with th...
yue621 Microcontroller MCU
Design of power supply and display of intelligent charger
Design of power supply and display of intelligent charger -- good things made by AVR microcontroller...
tcbf001 Power technology
What cpld to use to replace xc9572?
9572 is going to be discontinued. Now the product needs to use a new cpld to replace 9572. Which expert can tell me what is the most suitable replacement?...
icdragon Embedded System

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 2679  2126  1062  204  907  54  43  22  5  19 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号