From cube-lovers-errors@curry.epilogue.com Thu Dec 19 03:26:06 1996 Return-Path: cube-lovers-errors@curry.epilogue.com Received: from curry.epilogue.com (localhost [127.0.0.1]) by curry.epilogue.com (8.6.12/8.6.12) with SMTP id DAA08315; Thu, 19 Dec 1996 03:26:05 -0500 Precedence: bulk Errors-To: cube-lovers-errors@curry.epilogue.com Date: Thu, 19 Dec 1996 03:24:12 -0500 (EST) From: Nicholas Bodley To: Nichael Cramer cc: David Singmaster Computing & Maths South Bank Univ , cube-lovers@ai.mit.edu Subject: Re: Cube stickers In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII I've had the same luck, but I thought it was lubricant that had migrated; I'm reasonably sure I tried lubricating my "5". Lubricant could turn adhesive into a gel, I think. Why the orange ones only? I think the reason is that they are a different pigment (mine's fluorescent, pretty sure!) on a different backing, perhaps plastic, while the others might be a high-quality paper; the plastic might require a different kind of adhesive. (Then, again, maybe when the maker shopped around for sheets of colored adhesive sheet stock, what was available at a a good price might not have included orange...) It's just possible that the molding compound included a few percent lubricant, and that interacted with the adhesive to create a gel. Consider what happens to the adhesive on masking tape when you apply it to plasticized PVC (vinyl) and leave it there for a few weeks or longer. The plasticizer (which, I understand, is a actually low-vapor-pressure solvent) migrates into the adhesive. Migration of plasticizer is a problem with plasticized PVC. (Any flexible vinyl is plasticized; rigid vinyl is quite stiff!)) |* Nicholas Bodley *|* Electronic Technician {*} Autodidact & Polymath |* Waltham, Mass. *|* ----------------------------------------------- |* nbodley@tiac.net *|* When the year 2000 begins, we'll celebrate |* Amateur musician *|* the 2000th anniversary of the year 1 B.C.E. --------------------------------------------------------------------------