3M 4950 CIRCLE-1.25"-500 datasheet, PDF

Datasheet> All Categories > accessories> 3M 4950 CIRCLE-1.25"-500

3M 4950 CIRCLE-1.25"-500: DescriptionTAPE DBL COAT 1 1/4" DIA 500/RL; Categoryaccessories; File Size156KB，6 Pages; Manufacturer3M; Websitehttp://3M.com/esd; Environmental Compliance

Download Datasheet Parametric View All

3M 4950 CIRCLE-1.25"-500 Overview

TAPE DBL COAT 1 1/4" DIA 500/RL

3M 4950 CIRCLE-1.25"-500 Parametric

Parameter Name	Attribute value
Tape type	Double coated, double sided
Adhesive	acrylic acid
base fabric, carrier	Paper
thickness	0.0450"（45.0 mils，1.143mm）
Thickness - Adhesive	0.042"（42 mils，1.067mm）
Thickness - base fabric, carrier	0.0030"（3.0 mils，0.076mm）
width	1.25" (31.75mm) 1 1/4" diameter
length	-
color	White
use	-
temperature range	200°F (93°C) maximum
shelf life	24 months
Shelf life start date	Ship date

Preview

Download Datasheet

View All

3M VHB Tape Durability

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

Recommended Resources

Power amplifier circuit diagram

Circuit diagram for controlling charge and discharge of absorption capacitor

Several trigger circuits using resistor-capacitor phase shifting b

Motorcycle battery clever charging circuit

30HZ-20KHZ square wave-triangular wave generator circuit diagram

Voltage output display part circuit diagram

Hearing is believing, seeing is believing! Acoustic black technology is here!: [font=微软雅黑][b][color=windowtext][size=15px]Fluke[/size][/color][color=windowtext][size=15px]Introduces the ii900[/size][/color][color=windowtext][size=15px], the first industrial acoustic imager[/size...; eric_wang Industrial Control Electronics

A little supplement to the uFun development board quick start guide V1.0: It is mentioned in the "uFun Development Board Quick Start Guide V1.0" that the software download of Keil-MDK should be done by searching by yourself. The installation and cracking are very simple. If...; muzibaishui stm32/stm8

CC4098------Dual retriggerable monostable trigger.pdf: Internal type: E-book This article introduces the working principle and process of the double trigger in detail...; rain Analog electronics

Test System Description (II) - Testing Dual Airbag Inflator Modules Using the 2790 SourceMeter Switching System: The Model 2790 Digital Source-Measurer Switching System and the 7751 plug-in module are capable of performing all the measurements in this tutorial. Figures 1 through 3 show the test circuits for the ...; Jack_ma Test/Measurement

IWebBrowser2 calls javascript: Let’s take a look at the code first, as follows void MyBrowser::CallJavaScript(OLECHAR FAR* funcName) { HRESULT hr; IDispatch* pDocDispatch = NULL; IDispatch* pScriptDispatch = NULL; IHTMLDocument2* p...; bbs_cq Embedded System

Help~~~~cortex m3 and wireless communication module nRF905: [color=#000][font=Arial, SimSun]I want to realize wireless communication between two boards. Each board is connected to an nRF905. The board and the 905 are connected via SPI port. There is an ssi por...; mewmew ARM Technology

Shortcut: S0 S1 S2 S3 S4 S5 S6 S7 S8 S9 SA SB SC SD SE SF SG SH SI SJ SK SL SM SN SO SP SQ SR SS ST SU SV SW SX SY SZ T0 T1 T2 T3 T4 T5 T6 T7 T8 T9 TA TB TC TD TE TF TG TH TI TJ TK TL TM TN TO TP TQ TR TS TT TU TV TW TX TY TZ U0 U1 U2 U3 U4 U6 U7 U8 UA UB UC UD UE UF UG UH UI UJ UK UL UM UN UP UQ UR US UT UU UV UW UX UZ V0 V1 V2 V3 V4 V5 V6 V7 V8 V9 VA VB VC VD VE VF VG VH VI VJ VK VL VM VN VO VP VQ VR VS VT VU VV VW VX VY VZ W0 W1 W2 W3 W4 W5 W6 W7 W8 W9 WA WB WC WD WE WF WG WH WI WJ WK WL WM WN WO WP WR WS WT WU WV WW WY X0 X1 X2 X3 X4 X5 X7 X8 X9 XA XB XC XD XE XF XG XH XK XL XM XN XO XP XQ XR XS XT XU XV XW XX XY XZ Y0 Y1 Y2 Y4 Y5 Y6 Y9 YA YB YC YD YE YF YG YH YK YL YM YN YP YQ YR YS YT YX Z0 Z1 Z2 Z3 Z4 Z5 Z6 Z8 ZA ZB ZC ZD ZE ZF ZG ZH ZJ ZL ZM ZN ZP ZR ZS ZT ZU ZV ZW ZX ZY

Popular Components