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Klingspor PS 73 BWK Discs – Paper Backing, Self-Fastening for Paint, Varnish & Filler
The Klingspor PS 73 BWK self-fastening discs are a premium abrasive choice for fine finishing and intermediate sanding of paint, varnish, and filler surfaces. Designed for use with hook & loop orbital and random orbital sanders, these discs deliver consistent surface quality and long-lasting performance, making them ideal for automotive refinishing, woodworking, and decorative surface preparation.
Constructed with a flexible B-weight paper backing, the discs conform well to contours and edges, ensuring a smooth, even finish. The high-grade aluminium oxide abrasive grain provides a sharp and uniform cut, while the stearate coating minimises clogging—particularly important when working on coated or resin-rich surfaces.
✅ Key Features:
Self-fastening hook & loop backing – quick disc changes and secure hold
Flexible B-weight paper backing – adapts to curves and contoured surfaces
Aluminium oxide abrasive grain – durable, sharp, and consistent cutting action
Stearate coating – reduces clogging for a longer lifespan
Optimised for paint, varnish, and filler sanding
📏 Typical Specifications (may vary by disc):
Abrasive grain: Aluminium oxide
Backing: Flexible B-weight paper with hook & loop attachment
Bonding: Resin over resin
Coating: Open coat with stearate layer
Common diameters: 125 mm, 150 mm
Grit range: Fine to medium grades available
📦 Common Applications:
Fine sanding of painted or varnished surfaces
Intermediate sanding between coats of paint or varnish
Keying filler before final top coat application
Surface preparation in furniture making and restoration
Automotive refinishing and decorative finishing tasks
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