Plastics - Enhancing Flow

Enhances Resin Flow 3-9%

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

Plastic Bearings Moulder
Part with very thin web (less than 1mm thick) - mould not filling properly - solved with flow enhancing WS2 Coating.

WS2 Helps Flow in 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 improve surface finish by removing sink marks.

WS2 Helps Flow in Floor Tiles Mould
A major floor tile moulder moulder was having problems with slip-stick flow marks on the surface of the finished product. We coated the mould plates - no more marks - a happy man!


WS2 - Spiral Flow Study

The Spiral Flow Study and Analysis was conducted by Western Washington University totally independently and in strict compliance with SPE procedures. All test resins were run to their manufacturer's specifications.

The study was conducted to quantify flow enhancement afforded by WS2 coating when applied to injection, blow and extrusion tooling.

Over the course of four years virtually all WS2 customers experienced improved product quality due to reduced required operating pressure and temperatures, as well as significantly lower operating costs resulting from faster cycling and increased tool life.

The following test data includes the most often run resins and illustrates the flow enhancement provided by WS2. The standard MUDD spiral tool was used for the study.

--- MATERIAL ---

-Uncoated-

-WS2 Coated-

% Improvement

Polypropylene - Amoco 40398

45.7

47.2

+3.3%

ABS Monsanto Mo648

41.1

42.4

+3.2%

Acetal - Dalrin II 900NC

39.3

41.1

+4.6%

Polyethylene DC10262B

38.7

40.2

+3.9%

Polycaronate DC301

35.5

36.7

+3.4%

PETG Eastman 6763

29.7

32.4

+9.1%

Acrylic RH811

26.9

27.9

+3.2%

Impacy Styrene DC478WB

26.1

26.9

+3.1%

Cristal Styrene DC685

25.4

27.5

+8.3%

Ultem 1000(300F Mould Temp)

19.5

20.5

+5.1%