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SKU: ASO312530

Bona Quattro Disc

£1,019.25
Including VAT, all orders have free shipping

Free delivery

2-3 DAY DELIVERY

Due to the weight, size and value of this item, we arrange delivery using our own teams, this ensures you receive your precious cargo safely.

Please contact us before placing your order:

Phone: 01722 638802

Email: sales@wiltshirewoodflooringsupplies.co.uk

Click & Collect

  • Place your order online.
  • Select the click & collect option at the checkout.
  • You will receive email confirmation that your order is ready to collect (generally within 5 minutes)

Opening hours: 7am - 4pm Mon-Fri

Collection address:

Wiltshire Wood Flooring Supplies

Unit 1

Penton Business Park

Stephenson Road

Churchfields Industrial Estate

Salisbury

SP2 7NP

The Bona Quattro Disc is a genuine Bona four-pad finishing attachment designed for use with the Bona FlexiSand . It provides a smooth, controlled sanding action for intermediate and final sanding, helping remove drum marks, edging scratches and minor sanding imperfections before staining, oiling or lacquering.

Although it resembles a four-disc drive plate, the Quattro Disc works very differently from the geared Bona Power Drive. The Quattro carrier is driven by the FlexiSand's central shaft, while its four individual 150mm pads sit at a slight angle and rotate independently as the attachment moves across the floor.

This free-moving four-pad action is significantly less aggressive than the Power Drive system. It follows the surface smoothly and distributes the sanding action across four separate pads, making it particularly effective for producing an even final scratch pattern without heavy overlap lines.

The Bona Quattro Disc is supplied complete with four standard 150mm sanding pads.

Key Features

Controlled Finishing Action Provides a smoother and less aggressive sanding action than the geared Power Drive, making it ideal for intermediate and final sanding.
Four Independently Rotating Pads The four slightly angled 150mm pads rotate independently as the main carrier turns, helping the attachment follow the floor evenly.
Reduces Sanding Marks Excellent for smoothing drum marks, edger scratches and rotational sanding marks before the final finishing stages.
Minimises Overlap Lines The balanced, free-moving pad action helps prevent aggressive overlap marks and produces a more consistent scratch pattern across the floor.
Four 150mm Abrasives Accepts four compatible 150mm hook-and-loop sanding discs, intermediate pads or Bona Diamond Abrasives.
Genuine Bona Accessory Manufactured to Bona's original specification for professional sanding, abrasion and floor-finishing work.

Technical Information

Product Bona Quattro Disc
Bona Part Number ASO312530
Overall Diameter 407mm
Number of Pads 4
Individual Pad Diameter 150mm
Abrasive Attachment Hook and loop
Machine Compatibility Bona FlexiSand
Pads Included 4 standard 150mm sanding pads
Primary Applications Intermediate sanding, final sanding, finish abrasion, buffing and smoothing drum or edging marks

How the Quattro Disc Works

Independent Four-Pad Sanding Action

The Quattro Disc mounts directly onto the Bona FlexiSand's main drive shaft and rotates beneath the machine in the same general manner as a conventional buffer attachment.

The four individual sanding pads are positioned at a slight angle and rotate independently as the main carrier moves. Unlike the geared Power Drive, the individual discs are not mechanically driven at high speed.

This creates a gentler, more forgiving sanding action that follows the surface and distributes the scratch pattern evenly. It is therefore particularly suitable for final preparation work where surface consistency is more important than aggressive timber removal.

Recommended Applications

Final Sanding of Bare Timber Produces an even final scratch pattern after the main belt-sanding and edging stages.
Removing Drum Marks Helps blend and smooth shallow drum lines left by belt or drum sanding machines.
Blending Edger Scratches Reduces rotational scratches and transition marks left around the perimeter of the floor.
Preparing for Stains The controlled sanding action helps create an even surface before applying wood stains, reducing the risk of visible overlap patterns.
Preparing for Coloured Oils Particularly useful before pigmented or coloured oils, where an uneven sanding pattern can become more visible after application.
Intermediate Finish Abrasion Can be fitted with suitable fine abrasives or interface pads for controlled abrasion between compatible coating applications.

Deep Clean and Overcoat Preparation

Use with Bona Diamond Abrasives

The Bona Quattro Disc can be fitted with four 150mm Bona Diamond Abrasive Discs for controlled superficial abrasion of existing floor coatings.

Bona Diamond Abrasives produce a consistent scratch pattern with minimal visible swirl marks, making them particularly suitable for professional deep-clean and overcoat systems.

When preparing an existing Bona lacquered floor for recoating, the Quattro Disc provides a controlled way to abrade the surface before applying a compatible finish such as Bona Traffic HD, subject to the correct Bona preparation and coating procedure.

Bona Diamond Abrasive Discs are not currently supplied with this product and may need to be purchased separately.

Compatible Abrasives and Replacement Pads

Bona Quattro Disc Replacement Pads – Set of 4 Genuine replacement 150mm sanding pads for the Bona Quattro Disc. Supplied as a complete matching set of four.
Bona 8300 Sanding Discs – 150mm Professional zirconia abrasives for intermediate and fine sanding of timber floors. Available in a range of grit sizes.
Bona Diamond Abrasive Discs – 150mm Fine abrasive discs designed for superficial abrasion of existing floor coatings before professional recoating systems.

Replacement Pad Set

Replacement Product Bona Quattro Disc Replacement Pads – Set of 4
Bona Part Number ASO319934
Quantity 4 replacement pads
Pad Diameter 150mm
Purpose Replacement for worn, damaged or uneven Quattro Disc sanding pads

Quattro Disc vs Power Drive

Feature Bona Quattro Disc Bona Power Drive
Disc operation Four independently rotating pads Four mechanically geared sanding discs
Sanding action Controlled and forgiving Aggressive and powerful
Primary purpose Intermediate sanding and final finishing Heavy sanding and removal back to bare timber
Overlap marks Helps minimise visible overlap lines Requires controlled technique due to greater cutting power
Stain and coloured-oil preparation Highly suitable Can be too aggressive for some final preparation stages
Professional Finishing Advice

The Quattro Disc is particularly useful when preparing floors for stains, coloured oils or natural-looking finishes. These products can highlight inconsistencies in the sanding pattern, including overlap lines and aggressive circular scratches.

The independent four-pad action helps blend the floor more evenly, providing a consistent surface before colour or finish is applied.

Always follow an appropriate grit sequence and inspect the floor carefully under good lighting before applying stain, oil, primer or lacquer.

Replace Worn Pads as a Complete Set

The four sanding pads should sit evenly and apply consistent pressure across the floor. If one or more pads become damaged, compressed or excessively worn, replacing all four together helps maintain the balance and performance of the Quattro Disc.

Genuine Bona Quattro Disc Replacement Pads are available separately as a complete set of four.

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