Frequently Asked Questions

Introduction

As the name suggests, conductive adhesives are adhesives that conduct electricity. It contains silver powder as an ingredient that conducts electricity and is sometimes referred to as silver paste or conductive paste. In recent years, the use of conductive adhesives has been expanding as a means of conductive bonding in place of solder, as more and more products are made of films and resins with low heat resistance.

This page introduces frequently asked questions about the TK PASTE series of conductive adhesives developed by KAKEN TECH. We hope you will find it useful when considering the product.

Table of Contents
■I don't know how to use conductive adhesive (silver paste).
■I want to remove the adherend after conductive bonding.
■How do I open the syringe?
■How to apply the paste if there is no dispenser.
■Is the needle sold separately?
■What is the minimum sales unit?
■The product is delivered frozen. Is it also frozen for storage?
■I would like to know the deterioration and service life of conductive adhesive (silver paste). Do you have any data?
■Do you have any technical data such as TDS?
■Is it possible to issue a certificate of conformity to RoHS10, REACH, or other environmental regulations?

Frequently asked questions

Regarding how to use the conductive adhesives.

I don't know how to use conductive adhesive (silver paste).
We have a page to introduce how to use conductive adhesives (silver paste).
   This page explains what to do and what to pay attention to in each stage of thawing, cleaning, coating, and curing of conductive paste.
   

How to use conductive adhesives
silver pastes

I want to remove (peel off) the adherend after conductive bonding.
For room temperature drying type CN-7120 and CN-7122S, it is possible to remove the bonded workpiece by heating it again to about 100°C after drying.
   For other part numbers (such as those using epoxy resin), it is difficult to remove the adherend once bonded.
How do I open the syringe?
①First, remove the paste from the freezer and allow it to stand at room temperature, tightly sealed, for 30 minutes to bring it to room temperature. Wipe off the adhesive to prevent condensation from mixing with the adhesive.
 
②Open the head cap.
③Open the needle cap by turning it counterclockwise.
Note that paste will be dispensed if the needle cap is opened before the head cap.
④Install the needle and set it in the dispenser.
How to apply the paste if there is no dispenser?
When applying without using a dispenser, use a spatula or other thin object to push out the paste as shown in the figure below.

*Do not remove the yellow plug (plunger).
*Please note that when applying without using a dispenser, it will be difficult to dispense the paste if a needle is attached.
Are needles sold separately?
We do not provide needles, so please prepare the needles yourself.

Regarding the purchase of conductive adhesive (silver paste).

What is the minimum sales unit?
Although the packing style differs depending on the product number, we sell syringes and aluminum tubes in units of one.
   For CM-4230, please contact us.

Regarding storage of conductive adhesive (silver paste).

The product arrived frozen. Is it also frozen for storage?
TK PASTE should be stored frozen (-10℃). We ship it by cool (frozen) delivery, so please store it in the freezer as soon as possible after you receive it.

Regarding the data of conductive adhesive (silver paste)

I would like to know the deterioration and service life of conductive adhesive (silver paste). Do you have any data?
The deterioration of conductive adhesives (silver paste) depends on the environment in which the adhesive is applied, the materials to be bonded, and the bonding conditions.
   For reliability test data for each product number, please contact us using the inquiry form at the bottom of this page
Do you have technical data such as TDS?
Yes, You can download form Product introduction page for several products.
   Please contact us using the inquiry form at the bottom of this page if you cannot find.
Is it possible to issue a certificate of compliance with RoHS10, REACH, and other environmental regulations?
Yes, we can.
   Please contact us using the inquiry form at the bottom of this page, or send us the details of the environmental regulations.
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Inquiry and question

Requests for SDS

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Depending on the contents of your inquiry, it may take some time for us to reply to you.
For SDS, please contact us from [Requests for SDS] in the upper right corner.
※Sales through the inquiry form are strictly prohibited.

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