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Kenplas Forum ==> Others ==> Black Specks in caps
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5/7/2015 2:28:50 PM By uuyugelukak
If that is the case, please contact Husky, we're not sure about their mold design.

Another guess: material mixed with recycled material?

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12/20/2007 8:42:15 PM By Kenplas
pls let me know more details. we used the purging material from ultra purge P-0 Grade which is too helpless. pls advise permanent solution to remove black specs.

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12/20/2007 7:31:10 PM By sundharlal
Most probably there are some dead corners inside the hot manifold where material stays there and heated for long time.

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12/20/2007 11:23:31 AM By Kenplas
we are manufacturing of Caps from HDPE with mixing of LDPE through Husky Hot runner mould. There's a Black pints in so many products which is unsolved problem. We try to adjusting tempereratures and processing parameters also which is useless. Anybody can advise pls.

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12/19/2007 8:23:38 PM By sundharlal
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