Sia Abrasives 1950 Siaspeed Siafast Sanding Disc – 5 in., 80 Grit, 100 per Box
Sia Abrasives 1950 Siaspeed Siafast Sanding Disc – 5 in., 80 Grit, 100 per Box
The Sia Abrasives 1950 Siaspeed Siafast Sanding Disc is a 5 in. no-hole (NH) sanding disc in 80 grit, sold in a box of 100 and mounted with sia's siafast hook-and-loop attachment system.
Key Features
- 5 in. diameter, no-hole (NH) design — no center vacuum-extraction port
- Siafast self-fastening hook-and-loop attachment
- 80 grit — sia publishes this grit as a mixed grit with ceramic content, not plain aluminum oxide, for the 40–80 grit band of this series
- FSC-certified paper backing with a resin-over-resin bond
- Stearate anti-loading coating (sia applies stearate from 80 grit up in this series)
- 100 discs per box — sia's standard published pack for this article number
Who Is This For?
Fits shops running 5 in. hook-and-loop random-orbit or DA sanders that have no through-pad dust extraction and want a full box of coarse-grit discs from the 1950 Siaspeed Siafast line.
Frequently Asked Questions
How many discs are in this box?
100 discs — sia's standard published pack for this article number.
Does this disc have a vacuum-extraction hole?
No. It is a no-hole (NH) disc, built for sanders without through-pad dust extraction.
What is the siafast attachment system?
Siafast is sia's own self-fastening hook-and-loop system — the disc presses onto a compatible hook-and-loop backing pad.
What grain does the 80 grit disc use?
A mixed grit with ceramic content, per sia's published grain chart for the 40–80 grit band — not plain aluminum oxide.