EEWORLDEEWORLDEEWORLD

Part Number

Search

3M 4930 0.5"SQ-250

Description
TAPE DBL COAT 1/2"X 1/2" 250PK
Categoryaccessories   
File Size156KB,6 Pages
Manufacturer3M
Websitehttp://3M.com/esd
Environmental Compliance
Download Datasheet Parametric View All

3M 4930 0.5"SQ-250 Overview

TAPE DBL COAT 1/2"X 1/2" 250PK

3M 4930 0.5"SQ-250 Parametric

Parameter NameAttribute value
Tape typeDouble coated, double sided
Adhesiveacrylic acid
base fabric, carrierPaper
thickness0.0250" (25 mil, 0.635mm)
Thickness - Adhesive-
Thickness - base fabric, carrier-
width0.50"(12.70mm)1/2"
length0.50"(12.70mm)1/2"
colorWhite
useUniversal
temperature range200°F(93°C)
Shelf life start dateShip date
shelf life24 months
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
How to get the real path of SD card in WinCE?
I want to start a program in the SD card when WinCE starts, but I encountered some troubles. At first, I thought of adding a startup item directly in the registry or in "\Windows\Startup", but I found...
yangushi Embedded System
How to add RTSP protocol support to tcpmp?
I want to use TCPMP to play streaming media. How can I add RTSP protocol support to TCPMP?...
oufuqiang Embedded System
To all Raspberry Pi users (including the shipping number for Pi3 in the trial activity)
[align=left][size=4][font=微软雅黑]First of all, thank you for participating in the EEWORLD community's Raspberry Pi 3 review activity, and congratulations on obtaining the trial qualification. [/size][/a...
EEWORLD社区 Embedded System
MSP-EXP430FR5739 Purchase Application
Isn't it enough to have posted something about msp430? I'm not a new user. I've written about the use of lauchPad....
wangfuchong Microcontroller MCU
【NXP USB Type C Review】Preliminary Hardware Review
[i=s]This post was last edited by dcexpert on 2016-4-1 11:49[/i] Before we delve into the NXP USB Type C development board, let's first look at the chips used in the development board. Let's use that ...
dcexpert MCU

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

Index Files: 827  481  2362  579  1709  17  10  48  12  35 
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