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Kenplas Forum ==> Others ==> Black Specks in caps
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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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2007-12-20 20:42:15 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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2007-12-20 19:31:10 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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2007-12-20 11:23:31 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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2007-12-19 20:23:38 By sundharlal
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