Re: pinhole fun chem labs

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From: jleet1972@netzero.com
Date: Sun May 08 2005 - 20:56:50 PDT 

From: "jleet1972@netzero.com" <jleet1972@netzero.com>
Date: Mon, 9 May 2005 03:56:50 GMT
Subject: Re: pinhole fun chem labs
Message-Id: <20050508.205741.12838.142518@webmail12.lax.untd.com>

An easy polymer lab (you may have already done this is using glue (Elmer's White Glue works best) along with a sodium borax solution. If you mix them together you can make a rubber ball. (Sort of).

Mix 10 or so mL of glue with 5 or 6 drops of 30% solution sodium borate (easily made from Borax soap, found in Grocery Stores). Stir intil you reach a "rubbery" consistency. If you do not reach it with 30 seconds or so, add a few more drops of soap solution. You can also add dyes, etc.

Now, the best would be if you have access to poly-vinyl alcohol (PVA). Using this instead of glue makes for a very interesting substance.

Take good care

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