No Additives Gaskets & Packing

Your Packing Has Added Additives?

Are Added Additives good or bad?

How do added additives affect Sealing Reliability?

Packing is made up of braided yarns of foils which are made from a core fiber and a filler.

Core fiber can be of cotton, flax, acrylic, carbon, aramid, glass, PTFE, silica, ceramic, etc.

Conventional braided packing will add fillers like blocking agents, additives and or other coatings.

Typical fillers or additives or impregnates can be of impregnation of PTFE, inert lubricant, graphite, corrosion inhibitor, etc.

All these ADDED ADDITIVES are to COMPENSATE for the missing properties of the core carrier fiber.

For example, if the carrier fibers of packing do not have lubricating properties, lubricant additives are added to help cool and lubricate shafts/stems during startup and operations. Below is an example of how a non-lubricating cotton fiber can be made into a cotton graphite packing by adding an additive like colloidal graphite! This additive will add a lubricating property to the packing.

Colloidal Graphite Impregantion
Cotton Graphite Packing Is Made From Cotton Yarn & Added Additives (Colloidal Graphite)


All added additives will be lost during operations through evaporation and or being squeezed out during compressions of the gland.

When all additives are lost, all the added properties are also lost. What is left of the packing is a totally dead fiber!

It is reduced to its original core fiber without the required properties that the added additives are to provide.

Loss of Additives in Packing

When all the Additives are lost, the packing will experience a shrinkage in volume.

The shrinkage in volume of the packing will open up the running clearance causing a catastrophic leak. At that point, the packing must be replaced to avoid safety risks in your plants.

SLADE Patented Packing Foil is made without ADDING ANY ADDITIVES.

SLADE Packing will never experience the shrinkage of volume.

SLADE Patented No Additives Gaskets & Packing

SLADE No Additives Gaskets and Packing are all made using the Patented PAN grade Carbon Fiber Reinforced Expanded Graphite Foil. It has NO added additives.

SLADE is the ONLY manufacturer that makes packing foils WITHOUT any added additives through a Patented Pultrusion Process.

SLADE Patented Foil Pultrusion Process shown below (simplified):

  1. Pulls high strength PAN grade carbon fiber and
  2. Wraps high purity nuclear grade exfoliated or expanded graphite tape around the carbon fiber without the use of ADDITIVES!
  3. This is achieved in the patented device
SLADE Patented Foil
Carbon Packing

Shown Above Is The SLADE Patented Carbon Fiber Reinforced Expanded Graphite Foil Produced By The Patented SLADE Pultrusion Process.

SLADE Patented Foil has only two elemental carbon components:

1) High Strength structural PAN carbon fiber mono-filament
2) High purity 99.26% nuclear grade expanded graphite fiber.


Pump Packing

SLADE Packing will never experience shrinkage of volume.

SLADE is the creator and inventor of non-additives gaskets and packing sealing solutions.

With no added additives, it will have extended service life!

Shrinkage of Volume of Packing can shorten the life span of your packings:

Contact us to get further details of this Patented Product.

Goldspark 3300G Packing