SiaPower 1550 5-Inch Sanding Discs: Powerful 40 Grit Heavy Stock Removal
Aggressive Cutting Action for Rapid Material Stripping
The 1550 SiaPower 5″ Sanding Disc in 40 grit is a heavy-duty abrasive designed for the most demanding surface preparation tasks. This extra-coarse grit is engineered to quickly strip away old paint, rust, and thick varnishes, making it the perfect first step in any restoration project. The 0-hole (solid) design provides 100% surface contact, ensuring that every rotation of your sander delivers maximum cutting power without the interruption of dust extraction holes, which is vital for leveling high spots on wood or metal.
Industrial Strength Durability for High-Pressure Sanding
Built to handle the heat and friction of intense material removal, the SiaPower 1550 series features a robust construction that resists tearing and grain shedding. These discs are optimized for use on flat or slightly curved surfaces where rapid leveling is required. The reliable hook and loop backing system ensures a secure, non-slip attachment to any 5-inch orbital sander, providing the stability and control needed to manage aggressive stripping tasks across automotive bodywork, heavy timber, or metal fabrication projects.
Application:
- Sanding of coatings and impurities
- Sanding out unevenness at the edges of repaired surfaces
- Flatting of body filler and composite materials
- Fine sanding of primer filler
- Keying of old and new lacquers
- Producing a matt finish on old and new lacquers for blending
Use for:
- Color
- Primer filler
- Body filler
- Lacquer
- Old lacquer
- Primer coat
- Epoxy primer coat
- Cathodic dip primer coat
- Plastics
- Acrylic glass
- Gelcoat polyester
- Glass-fiber reinforced plastic (GRP)
Profile
Grit type:
Mixed grit with ceramic content – 40 – 220
Semi-friable aluminum oxide / blue-fired – 240 – 600
White aluminum oxide – 800
Backing:
d-wt paper (FSC-certified) – 40 – 100
c-wt paper (FSC-certified) – 120 – 240
b-wt paper (FSC-certified) – 320 – 800
Coating:
Electrostatic
Bonding:
Resin over resin
Special coating:
Stearate – 240 – 800