Comments on: Avoiding the Consequences of Molding with Wet Resin http://www.matrixtooling.com/blog/avoiding-the-consequences-of-molding-with-wet-resin/ A compilation of manufacturing tips covering plastic mold design, build, injection molding and the inspection of finished plastic products as well as often overlooked manufacturing issues from a small business perspective. Contributed by various employees of Matrix Tooling, Inc. & Matrix Plastic Products. Mon, 29 Mar 2010 01:47:40 +0000 http://wordpress.org/?v=2.9.2 hourly 1 By: Brent http://www.matrixtooling.com/blog/avoiding-the-consequences-of-molding-with-wet-resin/comment-page-1/#comment-8194 Brent Wed, 24 Feb 2010 01:44:50 +0000 http://www.matrixtooling.com/blog/?p=17#comment-8194 If you are the Gary Anderson that we know (and love) so well here? If so,then you know the value of MFI on the virgin resin and a molded part as indication of degradation, be it of a thermal, mechanical or hydrolytic nature. If you are him, then you really drummed this into our heads! Are you THE Gary Anderson? If not your comments and observations are still right on. Brent If you are the Gary Anderson that we know (and love) so well here? If so,then you know the value of MFI on the virgin resin and a molded part as indication of degradation, be it of a thermal, mechanical or hydrolytic nature. If you are him, then you really drummed this into our heads!
Are you THE Gary Anderson? If not your comments and observations are still right on.
Brent

]]> By: andyz http://www.matrixtooling.com/blog/avoiding-the-consequences-of-molding-with-wet-resin/comment-page-1/#comment-8190 andyz Tue, 23 Feb 2010 13:20:40 +0000 http://www.matrixtooling.com/blog/?p=17#comment-8190 Hi Gary, You are absolutely correct, although we find our dryer read-outs to be accurate enough for most projects. When resin dryness is particularly critical we run moisture analysis at the beginning and end of the run (to make sure the moisture level was maintained throughout). We are also equipped to run melt flow tests when applicable. - Andy Z. Hi Gary,

You are absolutely correct, although we find our dryer read-outs to be accurate enough for most projects. When resin dryness is particularly critical we run moisture analysis at the beginning and end of the run (to make sure the moisture level was maintained throughout). We are also equipped to run melt flow tests when applicable.

- Andy Z.

]]> By: Gary Anderson http://www.matrixtooling.com/blog/avoiding-the-consequences-of-molding-with-wet-resin/comment-page-1/#comment-8187 Gary Anderson Mon, 22 Feb 2010 22:00:07 +0000 http://www.matrixtooling.com/blog/?p=17#comment-8187 You should use moisture analyzers before you start molding machine up for production. This would assure that the material would meet the manufactures guidelines. Does the quality department measure the melt flow index? You should use moisture analyzers before you start molding machine up for production. This would assure that the material would meet the manufactures guidelines.
Does the quality department measure the melt flow index?

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