FAQ

Q: Does sulfonation expose the parts to high temperatures?
A: No. Processing can be adjusted to take into consideration any temperature sensitivities of the plastics or parts.

Q: What is the Ph of sulfonated parts?
A: Completed parts are Ph neutral and can be handled without gloves or other protection.

Q: How do you measure the level of treatment?
A: We use an XrayFluorimeter as our primary means of measuring the level of sulfonation.

Q: Is sulfonation a batch treatment?
A: Generally yes, but continuous process and individualized processing is also appropriate in certain circumstances.

Q: Can sulfonation be applied in a “reel-to-reel” process?
A: Yes, a reel-to-reel application is feasible.

Q: What polymers resist sulfonation?
A: Generally any fluorine based polymer resist sulfonation including PTFEs, FEPs, and Telfons.

Q: Can only a specific portion of a part be sulfonated?
A: Yes, but this generally requires masking of the part where sulfonation is not desired.

Q: Can pelletized polymers be sulfonated and then molded and will the sulfonation properties remain post mold?
A: Generally, no. The surface properties are generally lost in the molding process.

Q: Do sulfonated parts require special handling?
A: No, they can be handled in the same fashion as untreated parts.

Q: Are there any special considerations for parts that will be sulfonated? A: Generally no, but mold release agents can present a problem.

Q: Does Sulfo license its technology to allow for in-house or in-line sulfonation?
A: We are in the business of providing solutions to our customers’ needs, and if the needs can best be met by licensing in-house operations, we will support that.

Q: Is sulfonation unsafe and environmentally hazardous?
A: No. Due to Sulfo Technologies’ proprietary process, sulfonation is completely safe and environmentally benign. Sulfo Technologies generates sulfur trioxide on demand and therefore does not store sulfur trioxide on the premises.

Q: Isn’t sulfonation uncontrollable?
A: No. Again, due to Sulfo Technologies’ proprietary process, sulfonation is now reliable, repeatable and controllable.

Q: Does sulfonation add elemental sulfur to fuel?
A: No. Following sulfonation, the sulfur present is in a sulfur six (S VI) oxidation state; therefore, it is chemically impossible to revert to elemental sulfur and thus be added to fuel.

Q: Is sulfonation destructive to POM, fuel sensor cards and catalytic converters?
A: No, Sulfo Technologies’ proprietary neutralization process renders the surface and surface region pH neutral.

Q: Does sulfonation leave an acidic residue on the parts and presents a hazard to material handlers?
A: No. Surface pH is tested following Sulfo’s proprietary neutralization process to ensure parts have a neutral pH.

Q: Is sulfonation the same as fluorination?
A: Sulfonation is superior to fluorination. Unlike fluorination, sulfonation is extremely durable and environmentally benign. The entire intent to restrict hydrocarbon permeation is to improve the environment. The fluorination process results in the release of extremely harmful fluorocarbons which are known to deplete the ozone.