<html><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">I use 1/32" or thinner neoprene (black) rubber sheet and I use a simple belt hole punch from Sears. I've been using this material since the 1970's and have never had a leak. It's soft and deformable enough to fill the scratches and cracks that seem inevitably to form around the filling holes.<br><div apple-content-edited="true"> <span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Century; font-size: medium; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-border-horizontal-spacing: 0px; -webkit-border-vertical-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px; "><span class="Apple-style-span" style="font-family: Helvetica; font-size: 12px; "><div><br class="Apple-interchange-newline"><br></div><div>Walter F. Stafford, Ph.D.</div><div>Senior Scientist</div><div>Boston Biomedical Research Institute</div><div>64 Grove Street</div><div>Watertown, MA 02472</div><div>617-658-7808</div><div><a href="mailto:stafford@bbri.org">stafford@bbri.org</a></div><div><br class="webkit-block-placeholder"></div><br class="Apple-interchange-newline"><br class="Apple-interchange-newline"></span></span> </div><br><div><div>On Aug 3, 2009, at 12:12, Anamika Bhailal Patel wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite"><div><br>Hi Everybody<br><br>I was wondering if anybody knows that what material we need to buy inorder to punch our own housing plugs(the red plastic thing to cover the housing holes).<br><br>Thanks<br><br><br><br><br>Anamika Patel, Ph.D.<br>Department of Biology<br>Life Science Complex<br>107 College place<br>Syracuse University<br>Syracuse NY 13244<br><br><br>_______________________________________________<br>RASMB mailing list<br><a href="mailto:RASMB@rasmb.bbri.org">RASMB@rasmb.bbri.org</a><br><a href="http://rasmb.bbri.org/mailman/listinfo/rasmb">http://rasmb.bbri.org/mailman/listinfo/rasmb</a><br><br></div></blockquote></div><br></body></html>