When Mistakes Happen… How to Remove Epoxy
In technical support, we receive calls almost every week asking how to dissolve conductive bonds made with CircuitWorks Conductive Epoxy (part #CW2400). The best advice I can give is to physically remove the cured material by sanding, scraping...
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Conformal Coating Defects: When Things Go Horribly Wrong
Download Defects Guide PDF To consistently and repeatably conformal coat PCB's, all the variables need to be controlled like heat, humidity, time, contamination... and the list goes on and on. Failure to control your process can result...
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Can I use a spigot / dispensing spout on the 55-gallon plastic drum?
Yes, HDPE (plastic) drums are designed to accept commonly available 2” threaded spigots / spouts. Spigots are available at distributors, like at https://www.grainger.com/product/GRAINGER-APPROVED-Drum-Tap-6PFN4.
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Can I use a spigot / dispensing spout on the 5-gallon carboy?
Yes, the hole in the center of the cap is designed to work with commonly available 2” threaded spigots / spouts. To use: 1) Remove existing cap, 2) replace with the 2" spigot cap, 3) make sure spigot is in the off position, 4) turn the...
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How do I remove the cap from the 5-gallon carboy?
There is a ratcheted ring on the bottom of the cap, which locks the cap into place and prevents it from unscrewing during shipment. To remove, insert a flathead screwdriver between the cap and the ring and pry it loose so the perforations break...
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Is there something I can do with the extension tube (straw) so it doesn’t get lost?
The red cap on Chemtronics aerosol products like flux removers, degreasers, and Freeze-It Freeze Spray has a notch on the top. That is engineered for the straw to snap in and hold into place so you don’t loose it. The aerosol trigger sprayers...
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Does Hand Lotion have dimethicone (dimethylpolysiloxane) or any other type of silicone?
No, Hand Lotion does not contain any type of silicone or other ingredients like lanoline that could migrate and impede solderability of solder joints and contacts. Hand Lotion is engineered for use around electronic assembly and rework, unlike...
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How High of a Temperature Can Temporary Solder Mask Withstand?
Solder mask is engineered to withstand molten solder temperature for the very brief time (about a second) it is exposed in a typical wave soldering process. Most commercially available masks should be able to withstand melting point temperatures...
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Can temporary solder mask be left on the PCB permanently?
Temporary solder mask is intended to be just that – temporary. Manufacturers of solder masks, like Chemtronics, always recommend removing the mask because there is no testing to support doing otherwise. If you decide to leave the solder...
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Does temporary solder mask leave an ionic residue?
No, temporary solder mask will not leave behind ionic residue that can lead to dendritic grown and board failure.
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