2. As Corstat is made, a conductive shielding layer is applied to both sides of corrugated paperboard material. This shielding layer is put-down at a 103 to 104. It is the combination of the shielding layers and the ‘air gap’ locked in between the layers that gives you excellent ESD shielding that is better than industry standards. Materials that do not have the ‘air gap’ will not perform as well. This is true of impregnated materials and solid conductive plastics. It is much easier to control Product ESD/Electrical Consistency during the coating process than it is by using loaded fiber materials to make ESD products.
- Protective Sealer: In addition to the shielding layer mentioned above, CCI also applies a proprietary sealing layer over the Corstat coatings. This is what makes Corstat the most effective conductive corrugated material available. This second coating does sever very important things:
- Controlled Discharge: Corstat raises the surface resistivity to 104 to 105. This assures the material’s surface will provide a slow enough drainage of static from a part that may have static build-up on it and not damage delicate components. The ESD standard for this function is 104 up to 1010.
- Low Sulfur: The second coating also controls sulfur out-gassing. Regular brown corrugated paperboard is made using sulfur as a manufacturing agent. The sulfur residue can cause lead contamination and build up on sensitive parts and solder areas. CCI’s dissipative over coating controls/negates this affect. Non-coated conductive corrugated does not offer this very important protection.
- Clean Surface: The protective layer gives the end user the ‘cleanest conductive corrugated on the market.’ Regular brown kraft or coated but ‘unsealed’ conductive corrugated can generate particulates in the manufacturing environment. Foreign Objects & Debris (FOD) are a major problem in the electronics industry.
- Recyclable: Finally, Corstat is manufactured to be 100% Old Corrugated Containers (OCC) recyclable. OCC means that Corstat is the same as any brown box you my recycle at home. This is the largest family of recyclable corrugated. When others say their material is recyclable, it may simply mean that you can produce black roofing paper from it because you cannot remove the ‘black’ color. The key is the OCC standard.
3. Physical Strength: Coated Corstat does not change the strength of the corrugated substrate. Impregnated products add enough carbon to the structure to weaken the physical properties of the corrugated material. Corstat provides stronger and longer lasting physical protection.