KLINGSPOR PS19EK 225mm P36 Silicon Carbide Sanding Discs for Polystyrene - 50 Pack

With a coarse P36 grit and razor-sharp silicon carbide abrasive, these 225mm discs slice through polystyrene and insulation foam with aggressive stock removal and minimal clogging. The open-coat design and multi-hole pattern keep dust flowing, while the heavy E-paper backing delivers the flexibility needed for contour sanding on drywall and soft plasters.

Overview

The KLINGSPOR PS19EK sanding disc is engineered specifically for polystyrene, insulation materials, soft plasters, fillers, and drywall. Each pack contains 50 discs with a hook-and-loop (Velcro) backing for fast changes on orbital and drywall sanders. The synthetic resin bonding and silicon carbide grain ensure high durability and a long service life, even under demanding jobsite conditions.

What stands out

• Silicon carbide abrasive stays sharp longer and cuts cooler than standard aluminum oxide.
• Open-coat construction prevents loading when sanding foam and soft materials.
• Multi-hole pattern aligns with dust extraction ports for a cleaner work environment.
• Heavy E-paper backing provides an ideal balance of flexibility and tear resistance.
• Hook-and-loop attachment enables quick disc changes without tools.

Technical details

• Disc diameter: 225 mm
• Grit size: P36 (coarse)
• Abrasive material: Silicon carbide (SiC)
• Backing material: E-paper (heavy paper)
• Bonding agent: Synthetic resin
• Coating type: Open coat
• Attachment type: Hook & loop (Velcro)
• Hole pattern: Standard multi-hole (e.g., 8+1, 9-hole)
• Primary application: Polystyrene, insulation materials
• Secondary application: Soft plasters, fillers, drywall
• Machine compatibility: Orbital sanders, drywall sanders
• Series/Model: PS19EK
• Quantity per pack: 50 pieces

Our verdict

For professionals shaping insulation or smoothing drywall, the PS19EK delivers consistent, clog-free performance. The silicon carbide grit and open-coat design keep the work moving, while the hook-and-loop backing makes disc swaps effortless. A reliable choice for high-volume sanding tasks.