Roach barrier - any alternatives to Vaseline?

[Ash]

Teflon Tape is a great idea as are SOME heat resistant HVAC tapes. (Not regular Foil Tape that crinkles) I recommend at least a double row barrier because roaches sometimes crawl over each other and thus can span over a single row of tape. The tape must be laid carefully with no air bubbles or crinkles. Obviously multiple layers will help in case of irregularities. Here is one that some of our friends say work Here is another tape that may work well. I have not used the latter two but am told by engineer types that it works. I personally use a layer of packing tape and another of teflon. The heat resistant ones may be better as they are less likely to degrade with time and heat of tropical roach colonies.