What about our RAM (stealth paint) technology? Which are also made using rare earth material.
Stealth Paint
Jumain was impressed with the stealth technology used on the Navy patrol boat, but said it still needs improvement. For a vessel to have full stealth capabilities, it must be specially designed for that purpose from the ground up, so its stern can be painted with the radar-absorbent material. The ship's location will still be known if its radar reflector is switched on.
The stealth paint, on the other hand, has shown promising potential.
"The trial went quite well; [the paint] can be mass-produced in the future. Regarding mass production, we will discuss it with Sigma Utama and the Indonesian Navy. The [radar-absorbent] paint cannot be made and sold by just anyone. It will be dangerous if smugglers start using it on their boats," Jumain said.
Wisnu Ari Adi, a researcher at Batan's Center for Science and Advanced Material Technology (PSTBM), said the paint is the result of processing monazite sand into rare-earth materials.
A prototype of the paint was first tested, to great effect, in 2017. It was undetectable to X-band radars, which operate at a frequency of between 8 and 2 gigahertz.
Wisnu said only a few developed countries have stealth technology in their arsenals.
"This is a technology that can absorb radar waves at certain frequencies. It is only in possession of developed countries and cannot be used commercially, because it is a highly strategic material and crucial for a country's defense," he said.
The researcher added that the radar-absorbent material is highly advanced, and that its properties can only be tested using nuclear technology.
"In Southeast Asia, only Batan is capable of testing materials using neutron-beam technology. The test is able to illustrate various magnetic and electrical interactions in the material," he said.
https://jakartaglobe.id/news/indonesia-advances-in-military-stealth-technology/