The first thought screen helmets were made in 1998 and used aluminum foil. They were sent to an investigator in Iowa. The investigator reported that one user tried it for a short time with no results. Afterwards, the investigator could not be reached and the whereabouts of the helmets are unknown.
About 8 thought screens were made in early 1999 using a metalized plastic which is used in static shielding bags. Six users reported success but two users were overcome by telepathic commands from the aliens; they removed their helmets and were taken.
From 1999 to 2017 over 95 people abducted by aliens have reported using thought screen helmets and hats made with Velostat. Since 1999 only one abductee was taken while wearing a thought screen helmet with Velostat. Most of the other abductees using thought screen helmets reported success. Some abductees could not be reached after they tried their thought screen helmets.
In 2007 several thought screen helmets were made with ten and twelve sheets of Velostat. Although eight sheets of Velostat are adequate telepathic shielding in most cases, some abductees state that they had a headache or felt nauseous with that level of protection. This situation may indicate that the aliens have increased the power of their telepathic transmission, especially when they directly confront their victims, but the signal remains scrambled by the Velostat.
As a general rule you should line whatever hat you are using with as many sheets of Velostat or LINQSTAT you can stuff into it.
For durability, helmets sent to abductees are now sewn with a $1,600 refurbished industrial sewing machine. You cannot sew a leather hat and eight sheets of Velostat with a home sewing machine.
Velostat and a similar material, LINQSTAT, have impedance, as shown below by the thought screen helmet with a mulitimeter reading in ohms. Both materials do not hold a static charge when grounded. They are technically described as a conductive polyethylene film commonly used as a static control material in numerous semiconductor, electronics and Smartcard applications due their easy-grounding nature. Both materials meet military specification MIL-P-82646A. They have different conductive properties than metals.
The Fluke multimeter indicates a reading of 52 ohms as shown below demonstrating the impedance of Velostat.
The Fluke multimeter indicates a reading of 0 ohms from aluminum foil as shown below. It is the unique conductive properties of Velostat than enable it to scramble telepathic communication and control from aliens.
Here is Michael Menkin making a thought screen helmet using twelve sheets of Velostat for a special abduction situation. This helmet took almost six hours to make and was sent to the abductee along with a baseball cap with eight sheets of Velostat, all for free.