{"id":134,"date":"2005-02-21T12:11:33","date_gmt":"2005-02-21T19:11:33","guid":{"rendered":"http:\/\/www.danshapiro.com\/blog\/?p=134"},"modified":"2010-05-28T02:12:04","modified_gmt":"2010-05-28T09:12:04","slug":"rockhard-update","status":"publish","type":"post","link":"https:\/\/www.danshapiro.com\/blog\/2005\/02\/rockhard-update\/","title":{"rendered":"Rockhard update"},"content":{"rendered":"<p>In my <a href=\"http:\/\/www.danshapiro.com\/blog\/archives\/000120dan_got_rockhard_for_you.html\">earlier post<\/a> on <a href=\"http:\/\/www.behlen.co.uk\/\">Behlen&#8217;s<\/a> <a href=\"http:\/\/www.woodcraft.com\/family.aspx?DeptID=4043&#038;FamilyID=751\">Rockhard Table Top Varnish<\/a>, I talked about a finishing schedule of mineral oil, shellac, then varnish.  HOLD THAT THOUGHT!  Here&#8217;s the problem: the first coat of varnish doesn&#8217;t adhere properly to the shellac if you do it the way I described.<br \/>\nI sanded back down to wood, and found that you can fix it with three simple steps:<br \/>\n1) Skip the mineral oil, or use a hardening oil (like boiled linseed oil) instead&#8211;residual liquid mineral oil reduces the surface tension of the varnish and can cause it to flow out improperly, leaving an uneven surface<br \/>\n2) Scuff the shellac lightly with sandpaper before applying the varnish, to promote adhesion<br \/>\n3) Don&#8217;t thin the first coat of varnish if it&#8217;s going over shellac, since the wood is already sealed by the shellac<br \/>\nOr you could just skip the whole shellac thing and follow the instructions on the can, instead of being difficult like me.<br \/>\nIn the words of <a href=\"http:\/\/www.michaeldresdner.com\/dres7.shtml\">Michael Dresdner<\/a>: Fabulous finishers frequently finish firewood first.<br \/>\nAs you may have gathered, I am not a fabulous finisher.  But the Rockhard is a pretty fabulous finish.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In my earlier post on Behlen&#8217;s Rockhard Table Top Varnish, I talked about a finishing schedule of mineral oil, shellac, then varnish.  HOLD THAT THOUGHT!  Here&#8217;s the problem: the first coat of varnish doesn&#8217;t adhere properly to the shellac if you do it the way I described.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19],"tags":[],"class_list":["post-134","post","type-post","status-publish","format-standard","hentry","category-woodworking"],"_links":{"self":[{"href":"https:\/\/www.danshapiro.com\/blog\/wp-json\/wp\/v2\/posts\/134","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.danshapiro.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.danshapiro.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.danshapiro.com\/blog\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.danshapiro.com\/blog\/wp-json\/wp\/v2\/comments?post=134"}],"version-history":[{"count":0,"href":"https:\/\/www.danshapiro.com\/blog\/wp-json\/wp\/v2\/posts\/134\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.danshapiro.com\/blog\/wp-json\/wp\/v2\/media?parent=134"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.danshapiro.com\/blog\/wp-json\/wp\/v2\/categories?post=134"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.danshapiro.com\/blog\/wp-json\/wp\/v2\/tags?post=134"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}