How does flux paste react while we are removing the component from motherboard?

Author : EASY TOOLS NEPAL | Published On : 09 May 2024

First of all, we need to know about flux: flux is a vital component used during the soldering or de-soldering process to help the process more actively and easily. Flux paste is an agent which can work differently in different operations. It can remove the component, it can clean the surface areas & it can help to solder the joint too. 

Best quality flux for repair

Let’s talk about how it works or reacts while we are removing the component from the motherboard: actually, solder flux paste itself is a heat chemical that will react actively while we give heat to the flux. That means while we are removing the component from the motherboard we are adding flux to the zone areas and we are starting to give heat from the hot gun or soldering station. So the flux paste become active and it helps to remove any existing oxidation and allowing the solder to flow more easily. The flux can make the de-soldering process more smother and reducing the risk of damaged of the component from the motherboard.

How to used solder flux paste?

Step 1:  identify the problem before you are going to apply the flux paste to the motherboard. Check the motherboard and you need to make sure which component has problem.

Step 2: clean the area before you apply the flux paste where you has found the problem.

Step 3: once you’ve identified the component that need attention, apply the small amount of flux to the joints. Be careful not to apply to much flux. It can create a mess and hard to clean after remove the component.

Step 3: Heat the component at right temperature, use the right tools to remove the component so that you don’t have to face the problems.

Step 4: after you remove the component apply small amount of flux paste and use de-solder wire to clean the area.

Step 5: Now time to repair or replace the component, put solder paste with flux past to make strong solder joint. Flux chemical also can help to solder the joint as well.

Step 6: Now clean the area where you changed the component. And test the parts if it is working or not.

These are the steps for using flux:

Additionally you need to clean properly the flux paste as well after de-soldering the component to prevent long tram issues such as corrosion.

Overall, Flux pastes are the chemical which are very important to the repair work. If you are working as a technician you must have to choose best quality flux paste to avoid damaged of your motherboard.