The SiaSponge Block Soft Ultra-Fine Blue 10PK is engineered for precision finishing and ultra-smooth surface preparation. Designed with long-lasting sia Abrasives foam and aluminum oxide abrasive on all four sides, these sanding blocks provide exceptional control and a refined, consistent scratch pattern.
The blue color coding clearly identifies the ultra-fine grit (400 grit), making it easy to select the correct block for final sanding stages. Its soft, flexible foam core adapts effortlessly to edges, contours, and detailed profiles while maintaining even pressure across the surface. Ideal for final prep before painting, staining, or clear coating.
Features
• Ultra-fine 400 grit identified by blue color coding • Aluminum oxide abrasive coating on all four sides and edges • Soft, highly flexible foam core for contour sanding • Long-lasting construction for multiple uses • Washable and easy to clean • Low clogging due to flexible binder and soft carrier material • Conforms to edges, corners, and detailed profiles • Delivers a smooth, uniform finish
Specifications
• Product name SiaSponge Block Soft Ultra-Fine Blue 10PK • Grit 400 (Ultra-Fine) • Abrasive material Aluminum oxide • Coating Four-sided abrasive coverage • Core material Soft foam sponge • Application Manual sanding • Suitable surfaces Wood, plastics, composites, paints, varnishes, old lacquers, fillers, primers • Pack quantity 10 blocks
Comes With
• 10 Soft Ultra-Fine Blue (400 grit) SiaSponge sanding blocks