by Part-Timer » Mar 8th, '12, 14:24
Much as I hate to disagree with Mandrake (or is it Mandrake's missus - possibly even scarier than arguing with the main man himself), acid-free has nothing to do with the glue bleeding through. It relates to what happens over time. If a product is acid free, it can be used in things that are meant to last a long time (scrapbook pages, for example). If a glue is not acid-free, it may eventually cause decay and/or discolouration (or at least faster than this would occur normally). Many crafting-specific products are acid-free so that the scrapbooks or cards made using them will not get spoiled faster than normal.
Without knowing exactly what is involved in putting an Extractor back together (I have never needed to pull one apart), it's hard to make a recommendation. Wet glues (such as UHU) are usually stronger than glues that come in stick form. Epoxy glues are probably OTT for this sort of thing. My best guess for a suitable glue, which is also readily available, would be a tube of UHU.
You also need to consider drying times. If the parts of the Extractor will need to be held in place while drying, is this practical with a glue that has a long drying time? Can you use paper clips, paper strips, books etc. to hold the Extractor in place for a long time, or will this cause other marks? For this reason, it may be an idea to look at one of those glues that works by you putting a thin layer on the two surfaces that will be in contact, letting the glue dry, than placing the surfaces together (such as rubber cement - blue glue would not be permanent, as Mandrake explained).
Another thing you might want to use is crafting tape. You can get some extremely strong double-sided tape that can be used for putting cards together (the stuff crafters use often has a red acrylic backing "paper"). Because it is so strong, you might not want to try and stick everything down at once. You can only partly remove the backing "paper" when lining up the two pieces you want to stick together, leaving the removed bit of backing tape sticking out at the side. When you are happy that everything is lined up right, press down on the exposed sticky surface of the tape, then pull off the rest of the backing and stick down the remainder of the card. Try this technique on something else before using it on the Extractor!
The tape comes in a variety of widths and you won't have to worry about glue seeping out of the sides.