Sia 8443.7842.0400 – 1950 Siaspeed Sanding Disc, 6", 400 Grit, 81-Hole, FSC Paper Backing (100/Box)
$78.79
6″ 400 grit Siaspeed disc with 81-hole pattern and paper backing. Ideal for intermediate sanding and primer prep. 100 per box. Part #8443.7842.0400
4 in stock (can be backordered)
Description
Sia 8443.7842.0400 Siaspeed 1950 6 Inch Disc, 400 Grit
The Sia 8443.7842.0400 is a 6 inch (150 mm) Siaspeed 1950 sanding disc in 400 grit with an 81-hole pattern, sold 100 discs per box. Siaspeed 1950 is Sia’s paper abrasive for high stock removal, good surface quality and long life on paint, primer, filler, lacquer, wood and composites.
Features and Specifications
- Grit: 400, a very fine grit for primer sanding before topcoat and light sanding between coats
- Size: 6 inch (150 mm) with 81 holes for dust extraction
- Grain: aluminum oxide
- Backing: FSC-certified paper, open electrostatic coat
- Bond: resin over resin
- Top coat: stearate, which resists clogging and helps the disc last longer
- Pack: 100 discs per box
Where 400 Grit Fits
Use 400 after 280 or 320. It is a common final step on primer before solid colour topcoats and for scuffing lacquer between coats. Move on to 500 or 600 for a finer finish.
Who Uses It
Automotive refinishers, collision shops, furniture and cabinet shops and industrial finishing lines use the Sia 8443.7842.0400 on body filler, primer filler, lacquers and paints. The 81-hole pattern pairs with multi-hole 6 inch pads and dust extraction to keep the surface clear while you sand.
Tips for Longer Disc Life
Use light, even pressure and let the abrasive cut. Keep the pad flat to avoid rounding edges, and clean the surface between grits so loose particles from a coarser step do not leave stray scratches. Change the disc as soon as it stops cutting; a worn disc only polishes and builds heat. Store boxes flat in a dry place so the paper stays flat.
Related Products
- Sia abrasives at IBEX
- More 6 inch sanding discs
- Sia 8443.7842.0600 Siaspeed 6 inch disc, 600 grit
- Sia 8443.7842.0500 Siaspeed 6 inch disc, 500 grit
Order the Sia 8443.7842.0400 from IBEX
IBEX stocks this item in Calgary and ships from Calgary. For larger quantities, call or email for a quote.
Additional information
| Weight | 0.95 lbs |
|---|---|
| Dimensions | 6.50 × 6.50 × 3.00 in |
| Part Number | 8443.7842.0400 |
| Brand | Sia |
| Model | Siaspeed 1950 |
| Product Type | Sanding Disc |
| Disc Diameter | 6" (150 mm) |
| Backing Type | FSC-Certified Paper |
| Abrasive Material | White Aluminum Oxide |
| Coating | Stearate |
| Application | Intermediate Sanding, Primer Smoothing, Surface Prep |
| Compatible Tools | Multi-hole Orbital and Random Orbital Sanders |
| Wet/Dry Use | Suitable for Wet and Dry Use |
| Industry Use | Automotive, Woodworking, Industrial Finishing |
| Packaging | 100 Discs per Box |
| Condition | New |
| Grit | 400 |
| Hole Pattern | 81-hole |
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