EEWORLDEEWORLDEEWORLD

Part Number

Search

3M 4957F CIRCLE-0.75"-250

Description
TAPE DBL COATED 3/4" DIA 250/RL
Categoryaccessories   
File Size156KB,6 Pages
Manufacturer3M
Websitehttp://3M.com/esd
Environmental Compliance
Download Datasheet Parametric View All

3M 4957F CIRCLE-0.75"-250 Overview

TAPE DBL COATED 3/4" DIA 250/RL

3M 4957F CIRCLE-0.75"-250 Parametric

Parameter NameAttribute value
Tape typeDouble coated, double sided
Adhesiveacrylic acid
base fabric, carrierPolyester film
thickness0.0620" (62 mils, 1.575mm)
Thickness - Adhesive0.0600"(60.0 mils,1.524mm)
Thickness - base fabric, carrier0.0020"(2.0 mils,0.051mm)
width0.75" (19.05mm) 3/4" diameter
length-
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
Senior year internship job search - embedded software development - computer science and technology major
Senior year internship, embedded software development. See if I can become a member of your company. Education: Bachelor Gender: Male Major: Computer Science and Technology Date of Birth: 1985.10 Grad...
quwer Embedded System
About data processing
X=(i*2.048/(32768*10)-0.71)/51.44The range of i is 0~327680X should be accurate to three decimal placesThis is the problemHow to calculate this X?...
qingrong668 Microcontroller MCU
ADUCM361 External Interrupt
Using aducm361 cpu, infrared remote control HS0038 p0.3, external interrupt 0, and timer 0 to detect key values, why does it enter the external interrupt even when the remote control button is not pre...
hongjianw ADI Reference Circuit
Show off the prizes I won from participating in the Vishay event
Show off the prizes I won from participating in the Vishay event...
flower_huanghua Talking
About Dopod-Bluetooth Send File
About Dopod - Bluetooth file sending Select a file in Dopod -> open the drop-down menu -> select "Bluetooth file sending" -> Bluetooth sending interface Now I put a button, click the button to enter t...
heyuqi Embedded System

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 2  2282  554  2738  1429  1  46  12  56  29 
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