Plastics - Cores & Cavities

Aides Release on Cores & Cavities

Here are a few of our successes to give you some idea of what problems other people are using WS2 to solve:-

WS2 aids release in big moulds

The mould for a large tote bin had caused problems over a long period. The company had tried roughening the edges in an attempt to improve release but without success.

We coated the mould. Thereafter release improved significantly. The mould core shown here weighed in at 1.5 tonnes.


WS2 Solves release for Cosmetics Packaging (with 5p piece)

This is a small thin walled part with 0.25mm internal webs. Parts would occasionally stick in the cavity. The sticking got a whole lot worst when regrind was used. Since the mould had quite thick sprues a lot of material was not reusable.

We coated the cavity inserts of the mould. The cycle time was able to be reduced from 8 sec to 7 seconds and sticking was eliminated.

The first shift after coating the mould the production increased from 22k to 32k on 100% regrind. On going improvement 18k/day. - solved with WS2 Coating.


WS2 Solves release for Deodorant Packaging

The cavities of a major deodorant client had a rather special moulding made from a clear PET material which kept sticking to the mould cavity.

A small modification to the gate area plus coating with WS2 solved the problem. As a bi-product of coating the cavity the filling time was reduced by 0.9 seconds.

Also the polished cores were causing drag marks on the finished part. These were coated.... no more drag marks. Side-actions have been coated to help filling and surface finish.


WS2 releases Recessed Nameplates

Moulding were sticking in these recessed nameplate blocks.

Also the stainless steel from which they were made was picking up due to their sliding action. Both problems solved with WS2.


Sealant Packaging

The company moulds sealant packaging cartridges 44mm dia x 220 long which were regularly sticking on the cores.

WS2 coated cores ran without problem. The company sends mould cores & cavities for coating with WS2 on a regular basis.


Bearings Moulder

One part in Acetal stuck in the mould about once per shift, after coating the part ran for a 4 day test period without sticking once.

Since then various moulds have been coated on a regular basis.


Medical Moulder, South Coast

Small finger cores 4mm x 1mm x 15mm long were sticking. These cores required high polish and then they had to be "run-in" for 24hrs before the production was usable.

We coated the polished cores which proved usable immediately.

We then coated unpolished (sparked) cores these also were usable without the "running-in" period. A very happy man.


Trade Moulder

Having severe difficulty moulding a castelated core. WS2 coated core "while you wait" while worked immediately on retrial.