Sia Abrasives | 1950 Siaspeed 5" Sanding Disc - Hook & Loop

The 1950 Siaspeed 5" sanding disc is the versatile all-rounder for high stock removal, perfect surface quality, and long life. Coarse grits (40–80) use a sharp ceramic and aluminum oxide blend for fast cutting; medium grits (P100–P400) use blue-fired semi-friable aluminum oxide for longer life; and a stearate coating (from P80) resists clogging to maximize disc life. Multi-hole configuration with a hook & loop backing, compatible with standard 5" hook & loop backing pads.

• 40 Grit — Extra-coarse ceramic blend for rapid removal of old paint, rust, and heavy filler.
• 60 Grit — Extra-coarse ceramic blend for rapid removal of old paint, rust, and heavy filler.
• 80 Grit — Coarse stock removal and aggressive leveling of body filler and coatings.
• 100 Grit — Coarse stock removal and aggressive leveling of body filler and coatings.
• 120 Grit — Medium grit for feather-edging and smoothing primer surfacers.
• 150 Grit — Medium grit for feather-edging and smoothing primer surfacers.
• 180 Grit — Medium-fine refinement with stearate anti-clog coating for primer and filler flatting.
• 200 Grit — Medium-fine refinement with stearate anti-clog coating for primer and filler flatting.
• 220 Grit — Medium-fine refinement with stearate anti-clog coating for primer and filler flatting.
• 240 Grit — Medium-fine refinement with stearate anti-clog coating for primer and filler flatting.
• 280 Grit — Fine sanding between coats and scuffing clear coats for topcoat adhesion.
• 320 Grit — Fine sanding between coats and scuffing clear coats for topcoat adhesion.
• 400 Grit — Fine sanding between coats and scuffing clear coats for topcoat adhesion.
• 500 Grit — Very fine finishing of high-build primers, lacquers, and clear coats.
• 600 Grit — Very fine finishing of high-build primers, lacquers, and clear coats.
• 800 Grit — Ultra-fine refinement removing orange peel and dust inclusions before polishing.
• 1000 Grit — Ultra-fine refinement removing orange peel and dust inclusions before polishing.
• 1500 Grit — Extra ultra-fine polishing preparation on delicate high-gloss surfaces.

Applications

• Aggressive stripping of rust, old paint, and coatings
• Flatting of body filler and composite materials
• Fine sanding of primer filler and keying lacquers
• Blending and producing a matt finish for topcoat adhesion
• Removal of orange peel effect and dust inclusions

Compatible Materials

• Color, lacquer, old lacquer, primer filler, body filler
• Primer coat, epoxy primer coat, cathodic dip primer coat
• Plastics, acrylic glass, Gelcoat polyester, GRP, wood, metal

Product Profile

Configuration: Multi-hole  |  Attachment: Hook & Loop  |  Grit type: Ceramic (40–80) / Semi-friable aluminum oxide (P100–P400) / White aluminum oxide (P500–1500)  |  Backing: FSC-certified paper / Film  |  Special coating: Stearate from P80  |  Pack: 50-100/box  |  Brand: Sia Abrasives 1950 Siaspeed