Dow Silanes

Improve The Bond Between Pcb Layers With Silanes

Due to an increase in design density and tighter spacing between conductors, the likelihood of conductive filament failure (CFF) has increased. CFF occurs when copper corrosion grows from the anode to the cathode along separated interfaces, compromising adhesion. This ultimately leads to failure of the PCB, which can lead to equipment malfunction or even fires. Therefore, it is of the utmost importance that adhesion between the substrates is sure.
Silanes are a key ingredient when it comes to preventing PCB failures due to adhesion loss. The hydrophobic silane coating acts as a scavenger for water that is attracted to the interface by the hydrophilic glass. In the absence of a silane, the bond between the glass fiber and resin would likely weaken and fail.  

Another key component to prevent PCB failures is flexural strength. In flexible PCB manufacturing it is important that the parts can endure the bending stresses to which they are exposed. As a coupling agent, silanes are used as a finish on woven glass fabric to improve wet strength of the composite. They can increase flexural strength by 89%.
*After 72 hours immersion in boiling water

Dow Corning has developed products to meet the needs of the printed circuit board industry.

Xiameter® OFS-6032 diluted aqueous solutions are stable for long periods of time. In addition, they become completely soluble in less than an hour.

Xiameter® OFS-6224 coupling agent for glass-reinforced laminates for printed circuit boards.



Dow (NYSE: DOW) combines the power of science and technology to passionately innovate what is essential to human progress. Dow's integrated, market-driven, industry-leading portfolio of specialty chemical, advanced materials, agrosciences and plastics businesses delivers a broad range of technology-based products and solutions to customers in approximately 180 countries and in high-growth sectors such as packaging, electronics, water, coatings and agriculture. In 2014, Dow had annual sales of more than $58 billion and employed approximately 53,000 people worldwide. The Company's more than 6,000 product families are manufactured at 201 sites in 35 countries across the globe. More information about Dow can be found at  


ChemPoint is the leader in the marketing, sales, and distribution of specialty and fine chemicals across North America and EMEA. We specialize in agile technologies and focused product teams, providing our customers with responsive, personalized service.


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