1/16" acrylic cracking - Engraving Etc. Forum

<body> <h1>Full Version: <a href="https://www.engravingetc.org:443/archive/index.php?webtag=EE&msg=4181.7">1/16&quot; acrylic cracking</a></h1><a name="a4181_7"></a><p><b>From: Jim (PUZZLEHEAD)</b> [<a href="lmessages.php?webtag=EE&msg=4181.7">#7</a>]<br /> 27 Jun 2006<br /><b>To: markh789</b> [<a href="lmessages.php?webtag=EE&msg=4181.5">#5</a>] 28 Jun 2006</p> I have had this same problem with the reverse engravable Ultra-Mattes from Rowmark. Fortunately it has only happened a handful of times and hasn't happened to me in at least 5 years. It wouldn't happen right away, but when I came back in the morning, many of the signs looked like someone had taken a hammer to them My only guess is that it was older, more brittle material. I gave samples of it to Rowmark and Johnson Plastics, but of course they had never heard of this happening before. I don't have any solution for you except to try a slightly larger engraving cutter or use some acrylic from a different source. I definitely prefer using Rowmark's ADA alternative plastic whenever possible, but the majority of the time I use the reverse Ultra-Mattes.<hr /><a name="a4181_8"></a><p><b>From: Angie</b> [<a href="lmessages.php?webtag=EE&msg=4181.8">#8</a>]<br /> 11 Jul 2006<br /><b>To: ALL</b></p> <p>Cracking of the material after inserting the Rasters into the holes is what is called "crazing." This is the result of using an alcohol-based or petroleum based cleaner or paint on the Braille. Alcohol makes all of the imperfections in the material expand and cracking results. Make sure to use a non-alcholic based cleaner when cleaning a sign. </p> <p>Angie <br /> Accent Signage Systems, Inc.</p><hr /><p align="center">Show messages: <a href="lmessages.php?webtag=EE&msg=4181.1">All</a>  <a href="lmessages.php?webtag=EE&msg=4181.1">1-6</a>  7-8</p> <h4><a href="lthread_list.php?webtag=EE">Back to thread list</a> | <a href="llogout.php?webtag=EE">Login</a></h4> <h6>© 2024 <a href="http://www.beehiveforum.net/" target="_blank">Project Beehive Forum</a></h6> </body>