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Solder Replacement
RoHS Compliant Adhesives for Solder Replacement
Master Bond offers RoHS compliant, electrically conductive systems to replace lead soldering. These epoxy and silicone adhesives offer low volume resistivity, low outgassing and high temperature resistance.

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Lord Adhesives Metech 3255 Silver Conductor
Categories: Metal; Nonferrous Metal; Precious Metal; Silver Alloy; Solder/Braze Alloy

Material Notes: This conductor composition is a silver bearing paste composition designed for screen print application of a solderable electrode base onto various types of electrical ceramic component devices. The fired film forms a highly adherent bond to many types of substrates such as piezoelectric transducers (PZTs), NTC thermistors, alumina, steatite and porcelain without altering the electrical and mechanical properties of the dielectric body. The bonded electrode is readily solderable for external lead attachments.

All information provided by Lord.

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Physical PropertiesOriginal ValueComments
Brookfield Viscosity 110000 - 130000 cP
@Temperature 25.0 °C
RVT, Spindle #7 @ 20rpm
Thickness 9.00 - 12.0 micronsFired
 
Electrical PropertiesOriginal ValueComments
Surface Resistivity per Square <= 0.0030 ohm
 
Processing PropertiesOriginal ValueComments
Shelf Life 6.00 Month
@Temperature 25.0 °C
 
Component Elements PropertiesOriginal ValueComments
Silver, Ag 68 %
 
Descriptive Properties
Adhesion>6 lbs.Pad size 0.10"x0.10", solder 62Sn/36Pb/2Ag at 200ºC, 20 gauge pre-tinned copper wire at 90º to substrate plane.
Solder Wetting (seconds)2-362Sn/36Pb/2Ag at 230ºC

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PLORD149 / 86157

solder replacement adhesives

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