Save on operation costs with VSi’s Parylene C Dimer

VSi Parylene C Dimer produces coatings in up to 39% less time.

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All VSi dimers are certified Biocompatible per USP Class VI

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Parylene C Dimer

The most popular, cost-effective route to parylene protection.

The unique molecular structure of parylene C achieves reliable barrier protection faster than other parylene variants. Parylene C produces highly reliable coatings in 39% less time.

VSi offers the best transparency on purity in the market.

Higher Purity

Shorter coating Time

Lower Operating Costs

Parylene C is a popular choice as one of the fastest depositing dimers on the market, but unreported parylene variants can significantly impact deposition rates. Using highly-reliable GCMS purity testing, VSi offers the best transparency on purity on the market.

Parylene C Purity Test
PURITY TESTHPLC
PURITY
GCMS
PURITY
Dep. Rate
(µm/min)
VSi Dimer99%97%0.070
Competitor Dimer99%85%0.043

Why is parylene C purity important?

parylene c

The unique molecular structure of symmetrical dichloro paracyclophane allows it to deposit faster than other variants.

Symmetrical Dichloro Paracyclophane

The unique chemistry of parylene C produces uniform and accelerated deposition behavior.

parylene variants

However, parylene variants often found in C dimer reduce the deposition rate benefits of parylene C by extending coating times.

Tetrachloro Paracyclophane

Problematic in achieving true conformality of coating.

Trichloro Paracyclophane

Mismatched monomers impact uniformity of coating thickness.

Unsymmetrical Dichloro Paracyclophane

Lower “sticking coefficient” means slower deposition times.

Tetrachloro Paracyclophane

Problematic in achieving true conformality of coating.

Trichloro Paracyclophane

Mismatched monomers impact uniformity of coating thickness.

Unsymmetrical Dichloro Paracyclophane

Lower “sticking coefficient” means slower deposition times.

Testing parylene for its true purity.

HPLC vs. GCMS test methods

High Pressure Liquid Chromatography (HPLC)

HPLC measures the proportion of parylene material vs. non-parylene material present in dimer to determine relative purity, but does not distinguish between parylene variants. As a result, parylene C dimer with high levels of speed-reducing parylene variants would still be considered ‘high-purity dimer’ by HPLC test methods.

Gas Chromatography-Mass Spectrometry (GC-MS)

GC-MS offers a greater level of detail than HPLC by measuring the proportion of individual parylene variants present in dimer to determine purity at the individual parylene variant level.

At VSi, purity is exclusively reported at the transparent GC-MS level to guarantee consistent and repeatable quality parylene C dimer.

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high Purity

VSi dimer provides the greatest transparency in dimer purity.

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Performance

VSi Dimer will meet or exceed the coating quality of competitor dimers.

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Compatibility

VSi Dimer works seemlessly with all parylene deposition systems.

Satisfaction Guarantee

VSI stands by the quality and performance of its dimer. If you’re not 100% satisfied, contact us within 60 days for support and/or a refund of the purchase price.

put your dimer to the test with a free purity analysis.

Discover how VSi dimer compares to your parylene dimer before you switch with our free head-to-head dimer analysis. Contact us today to get started.

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VSi offers the best transparency on purity in the market.