sia House – uncomplicated, simple and quick
11 Radiators with a perfect surface finish
![alter Heizkoerper mit abgeplatztem Lack](/fileadmin/user_upload/Schleifloesungen/Systemloesungen/Innenausbau/854.jpg)
![frisch geschliffener und weiss gestrichener heizkörper](/fileadmin/user_upload/Schleifloesungen/Systemloesungen/Innenausbau/853.jpg)
1
![alter Heizkoerper mit abgeplatztem Lack](/fileadmin/user_upload/Schleifloesungen/Systemloesungen/Innenausbau/854.jpg)
Preparatory steps
- Treat the radiator when cold
- Cover the surrounding area
2
![](/fileadmin/user_upload/Schleifloesungen/Systemloesungen/Innenausbau/852.jpg)
Sanding off
- Sand off any rust points down to the metal
Manual sanding
P120
7900 sianet – Rolls
*****
1960 siarexx – Sheets
1960 siarexx – Rolls
****
1902 siacraft – Sheets
***
Machine sanding
P120
7900 sianet – Discs
*****
1960 siarexx – Discs
****
1944 siaone – Discs
***
3
![](/fileadmin/user_upload/Schleifloesungen/Systemloesungen/Innenausbau/851.jpg)
Keying
- Thoroughly clean the window
- Apply a first coat according to the paint manufacturer's specifications
Manual sanding
P240
7900 sianet – Rolls
*****
1960 siarexx – Sheets
1960 siarexx – Rolls
****
1902 siacraft – Sheets
***
Manual sanding
P240
7900 sianet – Discs
*****
1960 siarexx – Discs
****
1944 siaone – Discs
***
4
![](/fileadmin/user_upload/Schleifloesungen/Systemloesungen/Innenausbau/855.jpg)
Priming
- Apply temperature-resistant varnish to the whole radiator
5
![](/fileadmin/user_upload/images/industriezweige/Innenausbau/Haus112.jpg)
Painting
- Allow the primer coat to dry
- If necessary, perform intermediate sanding with P240 or siafleece
- Apply a second coat with varnish
![](/fileadmin/user_upload/Schleifloesungen/Systemloesungen/sia-Haus_Bilder_Perfekte_Oberflaeche/Bild_11_Seite_61.jpg)
Radiators with a perfect surface finish
![](/fileadmin/user_upload/2020-04-14_15h42_20.png)
Expert tip
siasponge flex is perfect for use on curved elements.
7983 siasponge flex
![](/fileadmin/user_upload/2020-04-14_15h42_46.png)
Expert tip
For curved elements, use siafleece instead of P240 sandpaper.
6120 siafleece