Electronics > Beginners

Favorite way to apply rosin flux? And cleaning leftover?

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Bassman59:

--- Quote from: AnyNameWillDo on July 23, 2018, 06:58:56 am ---So I was considering getting a bottle of this rosin flux (MG Chemicals Liquid Rosin Flux, for Leaded and Lead Free Solder, 125 ml Bottle): https://www.amazon.com/gp/product/B005DNR01Q/

However it seems like there are many options for applying it. Pens, bottles, syringes, brushes, etc.

What would you recommend? Do I need to purchase any additional cleaning tools in case I use too much flux, or after doing flux + solder + iron and there's still a little flux left?

--- End quote ---

Do yourself a favor and use "tack flux." It doesn't run all over the board and is easy to apply.

Something like this.

AnyNameWillDo:

--- Quote from: Bassman59 on July 25, 2018, 12:20:25 am ---
--- Quote from: AnyNameWillDo on July 23, 2018, 06:58:56 am ---So I was considering getting a bottle of this rosin flux (MG Chemicals Liquid Rosin Flux, for Leaded and Lead Free Solder, 125 ml Bottle): https://www.amazon.com/gp/product/B005DNR01Q/

However it seems like there are many options for applying it. Pens, bottles, syringes, brushes, etc.

What would you recommend? Do I need to purchase any additional cleaning tools in case I use too much flux, or after doing flux + solder + iron and there's still a little flux left?

--- End quote ---

Do yourself a favor and use "tack flux." It doesn't run all over the board and is easy to apply.

Something like this.

--- End quote ---

Does it matter that this is no-clean flux whereas I am using rosin-core solder?

exe:

--- Quote from: Bassman59 on July 25, 2018, 12:20:25 am ---Something like this.

--- End quote ---

It is water-soluble, not for beginners, imho. It must be cleaned well (or it will cause corrosion and other problems), which not always possible without proper tools. Particularly, cleaning under smd parts, which may require an ultrasonic cleaner.

helius:
"Water washable no-clean" looks like a mistake, as water-soluble fluxes cannot ever be left without cleaning. That is a REL0 no-clean flux that would normally be cleaned, if necessary, with isopropyl alcohol. Any rosin-based flux residue can be cleaned in aqueous systems with the addition of saponifiers, but that is not special to this product.

AnyNameWillDo:
Stick to rosin-core solder, rosin flux?

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