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Corona Treater | Silicone Sleeving
Corona Treater Silicone Sleeving

We are a leading supplier of silicone sleeve for the corona treatment process in South Africa, as well as the rest of Africa. The dielectric silicone sleeve is manufactured from a very specific silicone rubber compound, providing excellent electrical, thermal and chemical
resistance, making it ideally suited to the harsh environment that is the corona treatment process. Produced specifically as an electrical dielectric sleeve, it is manufactured to extremely close tolerances, ensuring reliable and consistent treatment performance.

Our corona treater roll sleeves are available for rolls with 45mm, 75mm, 98mm and 150mm diameters.

The elasticity of the treater roll sleeves allows for easy mounting onto the roll by means of compressed air. Exacting tolerances on wall thickness mean sleeved roll concentricity is never compromised - a key issue at today’s high line speeds.

Download mounting instructions for corona treater sleeves


Download technical specifications of silicone sleeving


Instructions on how to use our dyne inks and pens


Dyne Pens and Inks

To obtain optimum adhesion when printing, laminating or coating one needs to increase the surface energy of the substrate. Testing this surface energy can be achieved by surface energy test inks or pens, more commonly known as Dyne Inks or Pens.

We supply a range of Dyne testing products, such as Dyne Test Pens and Inks to measure surface tension to the southern Africa region. All dyne inks and pens are supplied with simple instructions for easy operation.

The Dyne Test Pens are designed to indicate film surface treatment levels on polymer based substrates and establish that the material is correctly treated prior to printing. The barrel of the test pen is printed with the minimum dyne level that the ink will determine.

Dyne Testing method: when the dyne level ink is applied to the substrate, the liquid will either form a continuous film on the surface or reticulate into small droplets. If the dyne level ink remains as a continuous film for 3 seconds, the substrate will have a minimum surface energy of that ink value, expressed in dynes. Should the dyne ink reticulate, the surface energy of the substrate is lower than that of the liquid itself. The dyne level can be then be determined by applying a range of dyne level inks above or below the measured level. 

Jumbo Pens A range of dyne level test inks which are prefilled for ease of use.
  • 31-59 Dyne/cm - all dyne levels
  • 59-71 Dyne/cm - odd dyne levels only

Prefilled Disposable Pens

These pens contain no formamide and are an ideal when a quick dyne level test is required, for example by production operatives. 
  • They contain 10ml of ink each. 
  • NON TOXIC - Contains NO Formamide
  • Permanent mark on film shows successful corona treatment
  • Available Dyne Levels: 38, 40 & 42 Dyne/cm only
Eco Pens These Eco pens are both non toxic and non irritant.
They were developed with operator and laboratory technicians health and safety in mind, as well as companies with ISO 14001. 
  • NON TOXIC, NON IRRITANT (No Formamide)
  • Green Ink
  • Standard kits for extrusion film manufacturers and converters
  • These pens contain 50ml of ink each 
  • Available Dyne Levels: 34 - 58 Dyne/cm
Ink and Empty Test Pens The dyne level inks conform to ASTM D2578-67 and DIN 53 364 Standards and are available in 100ml bottles.
We also offer empty test pens that can be refilled with ink for ease of use. It is of course imperative that pens are always refilled with the same dyne level and so not have cross contamination of dyne levels. 
  • 31-59 Dyne/cm - all dyne levels
  • 59-71 Dyne/cm - odd dyne levels only