3M 4949 CIRCLE-1.5"-5 datasheet, PDF

Datasheet> All Categories > accessories> 3M 4949 CIRCLE-1.5"-5

3M 4949 CIRCLE-1.5"-5: DescriptionTAPE DBL COATED 1 1/2" DIA 5/RL; Categoryaccessories; File Size156KB，6 Pages; Manufacturer3M; Websitehttp://3M.com/esd; Environmental Compliance

Download Datasheet Parametric View All

3M 4949 CIRCLE-1.5"-5 Overview

TAPE DBL COATED 1 1/2" DIA 5/RL

3M 4949 CIRCLE-1.5"-5 Parametric

Parameter Name	Attribute value
Tape type	Double coated, double sided
Adhesive	acrylic acid
base fabric, carrier	Polyester film
thickness	0.0450"（45.0 mils，1.143mm）
Thickness - Adhesive	0.0430"（43.0 mils，1.092mm）
Thickness - base fabric, carrier	0.0020"（2.0 mils，0.051mm）
width	1.50" (38.10mm) 1 1/2" diameter
length	-
color	black
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

How to use thermistor

stair lighting controller

Hysteresis-free phase control circuit

Battery Voltage Regulators for Solar Systems

800HZ signal generator circuit

sine oscillator circuit

Request: Graduation Project: Wireless Voice Transmission System: [i=s] This post was last edited by paulhyde on 2014-9-15 09:44 [/i] It consists of a single-chip RF transceiver chip nRF401, a microcontroller MSP430F1121, TLV320AIC10, which is a 16-bit A/D, D/A audi...; yghanwuji Electronics Design Contest

FPGA development board learning materials begging: :) I recently found a development board of ALTERA FPGA, daleda AC2580_V3, in the company. The website address on the board is no longer available. Does anyone have the information about this board? Sc...; wsmysyn FPGA/CPLD

【MicroPython】—by xinmeng_wit: Problems encountered when using micropython: [url=https://bbs.eeworld.com.cn/forum.php?mod=viewthread&tid=487707&fromuid=536508][MicroPython] What to do if the main.py file is damaged[/url] DIY in pro...; okhxyyo MicroPython Open Source section

STMCU: Pls contact me if you do ST-MCU. I need them. my qq: 35585568 Thanks!...; hurdy stm32/stm8

Help: PWM signal cannot be adjusted: Chip: STM8S903STIMER5's CH1 channel outputs a PWM signal with an adjustable duty cycle (256 levels). The program is as follows:void out_pwm1(void) //The first channel of timer TIM5 outputs a PWM signa...; Horace88 stm32/stm8

Will adding a nonlinear link to the RC bridge sine wave oscillation circuit cause waveform distortion?: Question: Will adding a nonlinear link to the RC bridge sine wave oscillation circuit cause waveform distortion?...; zzjzzjzzj Analog electronics

Shortcut: A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 AA AB AC AD AE AF AG AH AI AJ AK AL AM AN AO AP AQ AR AS AT AU AV AW AX AY AZ B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 BA BB BC BD BE BF BG BH BI BJ BK BL BM BN BO BP BQ BR BS BT BU BV BW BX BY BZ C0 C1 C2 C3 C4 C5 C6 C7 C8 C9 CA CB CC CD CE CF CG CH CI CJ CK CL CM CN CO CP CQ CR CS CT CU CV CW CX CY CZ D0 D1 D2 D3 D4 D5 D6 D7 D8 D9 DA DB DC DD DE DF DG DH DI DJ DK DL DM DN DO DP DQ DR DS DT DU DV DW DX DZ

Popular Components