Purging Compounds

Select your purging compounds by formulation

Purging Compounds from Slide Products Stop Specks and Streaking

Purging compounds come in a variety of formulations to meet your application. They stop streaking and eliminate black specks, plus dramatically shorten downtimes. Slide’s purging compounds speed up resin-to-resin and color-to-color changes, maximizing your productivity.

There are typically three (3) types of purging compounds:

1) Mechanical
2) Chemical
3) Liquid

Mechanical: A mechanical purging compound is effective for numerous applications. They rely on shear force and the differences in viscosity to clean. There is no chemical reaction and no soak time.

Chemical: A mechanical purge may not be effective in parts of the barrel, screw and manifolds where these is low pressure. A chemical purge is a better choice for this issue. Instead of shear force, a chemical reaction takes place when the purge contacts the resin or carbon. Some require no soak time while others require up to 30 minutes, all depending on several factors, such as the resin, size of barrel and screw, manifold size, etc.

Liquid: A liquid purge is usually a surfactant. It reduces the tension of the liquid in which it is dissolved. You could call it a hybrid, a somewhere between a mechanical and chemical purge.

Picking the right purging compound for your various applications requires a little research and testing. It is usually best to start with contacting an expert, such as Slide Products. With multiple purge types, and years of experience tackling tough purging applications, just a few minutes discussing your problem can narrow the choices quickly. Slide Products offers trial quantities for testing a purge and often will send a technician to help processors fine tune to purging process and trim even more time off the purge cycle.

Econo-Purge Purging Compound No. 473

Excellent purge for use through hot runner systems

Safe to purge through the mold

Helps eliminate color streaking and black specs

KLENZ Purging Compound No. 468

Excellent for use through hot runner systems

Safe to purge through the mold

GRAS rated active ingredients safe for food packaging applications

Purge-Atory Purging Compound No. 470

Recommended for use with gas emitting resins such as Delrin® and acetal

Safe to purge through the mold

Helps eliminate color streaking and black specs

N.P.T. NuPurge Technology Purging Compound No. 451

Complete purging through reactive chemistry

No need for multiple purging products

Temp range: 160° - 600°F/71°C - 315°C

Not for use with acetal or Delrin®

P.D.Q. Purging Compound No. 43432

Concentrated liquid purging compound

Water-based additive (use with barrel temperature above 212'F)

Can be mixed with any carrier resin