All electronic hobbyists need to have some basics equipment in their workstation. The iron solder and its accessories are the main ones. I live in a small city and I faced many problems to find some kind of parts (cheap) like sponges. So I have found a good soldering sponge these days and I will show you.

Soldering sponges are vegetable, not a natural plant sponge like this, but a mixture of cellulose fibers that are industrially processed. Thus, it resists a considerable high temperatures (~100ºC) like cotton. To use it with your iron solder, as a normal one, keep it wet.

There are two ways to find it, I'll describe: supermarkets and drugstore, the prices are almost the same. For both, before first use, wash it in clean water. See next steps.

UPDATE: As our colleague pfred2 says, you can find it also from the 'dollar stores'. Just make sure it comprised just by natural fibers (cellulose) avoiding plastic compounds.

Obs.: English is not my first language, so if you find any misspelling problems, please let me know.

Step 1: From Supermarket - Yellow Sponges

From supermarket, Fig. 1.:

3 sponges of 92mm x 70mm x 28mm, by the price of R$10 ($4), Fig. 2-4.

You will cut each one in four pieces like this, Fig. 5

To do that use a bread knife, Fig. 6.

You'll get 12 yellow sponges with 46mm x 70mm x 14mm, Fig. 7 ~R$1 ($0.5) each.

Actually the producer of this sponge is French: Spontex.

Step 2: From Drugstore - Pink Sponge, More Cute

From drugstore - 2 sponges of 70mm diameter x 10mm height ~ R$4 ($1.5).

This is not a yellow sponge because actually its pink, but it works nice :) The composition of those ones is the same.

If you would like to cut it, just proceed using the bread knife. I would rather compress (shrink) it to fits the holder size.

<p>I get my soldering sponges from the dollar store. Once you know what cellulose looks like it is easy to spot. Cellulose by the way is plant fiber, usually wood.</p>
<p>I've never seen those sponges in such stores (here is known as R$1.99 store), here in Sao Paulo. So, these were options that remain to me :( . Some people buy this kind of thing directly from electronic stores and pay 3-4 times more. Like you said, when we know its easy to replace ...:) and we can save money.</p>
<p>Yeah soldering sponges are usually the &quot;cheap&quot; kind of scrubbing sponge. They're some kind of paper pulp product almost I believe. There is something else in them to make them spongy when they're wet. But whatever that something is it apparently judging by the cost isn't much.</p>

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Bio: I'm a Computational Physicist at University of Sao Paulo in Brazil. My hobbies vary among music, electronics and drawing. Black Lead (draw): www.wix ... More »
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