FAQ
NB! Installation tips & trics have their own sub-pages
Quick links: General / Window films / Rfoil / Paint
General
What products should I use?
Window films protect only the glass panes. If you wish more wide protection, foils and or paint is needed.
Links: rFoil , and shielding paint
What protection does a certain product offer?
This depends on the product, this spreadsheet will show you the dampened frequencies
What should I consider before installing?
It is recommended that a professional tradesman installs the product.
How do I protect air vents?
You can build a box like structure around the intake or airduct. This box can have a RF blocking mesh that allows airflow, combined with foilprotected or painted frame.
Window films
Elasticity of window films.
The films are similar to solar protection films in handling. They are PET based and can not be installed in an angle.
Do the films have glue preinstalled?
Yes
How do the Mil. Spec. films differ from the others??
the Sd is NATO approved for military use. The SD2500 film is used by several NATO members armed forces.
Does the SD window film contain greenhous gas?
No, certificate here.
rFoil
Elasticity, does it bend or break?
rFoil is quite elastic due to the polymer core. One can cut the foil but do not tear it.
The foil can be installed in a 90 degree corner, eg where floor and wall meet.
How does one fasten rFoil?
There are several methods depends on material you are fastening it on and how effective you want the shielding to be.
- Gypssum: PVA glue. E.G. Henkelin Solvite all purpose wallpaper adhesive OR... Bostik Hernia PVP Variant.
- Concrete wall: PVA glue. E.G. Henkelin Solvite all purpose wallpaper adhesive. OR... Bostik Hernia PVP Variant.
- Brick wall: TDS tape or similar. OR, PVA glue. E.G. Henkelin Solvite all purpose wallpaper adhesive. OR... Bostik Hernia PVP Variant
- Wood frame: sapling or with TDS tape.
How do I achieve the best protection?
Use TDS tape or 3M 1170
Interlace foils where protected area is wider than the foil. The interlaced surface should cover at least 150 mm in all directions.
How do I cover the rFoil?
Do not put wall paper directly on rFoil, you can place a gypsum wall on top of it.
Shielding paint
What surfaces can be painted ?
The paint sticks best to surfaces that have been primed with GK5. We do not recommend painting porose brick walls.
Do you ned to mix or stirr the paint before use?
Yes, do this properly. It is best to stir it with AR42 using a battery operated drill.
Does the painted surface need to be grounded??
Yes, the paint is conductive. Employ a professional electrician to do the grounding.
Whatsized area can I Paint with one can?
This depends on how good dampening you need.
Usually you spread (wet) 250 micron paint per layer. Check paint for dampening details.
Can I paint several layers on top of another??
Yes.
Colour?
Black, but can be cover painted when dry. GK5 primer recommended before cover painting.
Migh take 3 - 4 layers of cover paint to achieve wished end result.