Plaster Prep Without Dust

Plasterboard prep is one of the dustiest, most fatiguing jobs on any site. Manual hand-sanding a ceiling and walls in a single bedroom can run to two hours of overhead work, followed by another half hour of cleanup. Smaller orbital sanders leave swirl marks that show through the topcoat. And inefficient extraction puts respirable plaster and joint compound dust into the air you and your clients are breathing.

For Australian plasterers and painter-decorators working in occupied homes, fit-outs, or finished interiors, every minute spent sanding is a minute where dust is settling on furniture, in vents, and in your lungs. And every uneven patch means a callback.

The Festool plaster prep system is built around the LHS 2 PLANEX long-reach drywall sander, paired with the PLANEX-specific dust extractor, the right consumables, and a soft-fillers interface for skim-coated areas. Used end-to-end, the system reduces sanding time, eliminates almost all airborne dust, and produces a finish that orbital sanders simply can't match.

The tool: LHS 2 225 PLANEX

The LHS 2 225 PLANEX is a 225 mm long-reach drywall sander engineered specifically for plasterboard. The brushless motor spins a 225 mm sanding head on a flexible, articulating attachment that lets the head pivot to remain flush with the wall or ceiling regardless of the angle you're holding the machine at.

Two design choices matter most for daily plasterer use:

• The articulated head stays flat to the wall. Manual hand-sanding and standard orbital sanders apply uneven pressure across the disc, leaving high points and visible swirl marks. The PLANEX's pivoting head distributes pressure evenly across the full 225 mm pad, producing a flat surface that takes paint cleanly.
• The extended reach removes the trestle. The telescoping shaft lets you reach a 2.7 m ceiling from the floor. No trestles, no scaffolding, no climbing. That alone is worth 20–30 minutes per room in setup time.

The extraction: CTM 36 AC PLANEX

Plaster and joint-compound dust is fine — fine enough to hang in the air for hours after sanding stops. Standard shop vacs lack the suction and filtration to capture it at the source, and they choke within a single ceiling because plaster dust packs the filter quickly.

The CTM 36 AC PLANEX is purpose-built to pair with the LHS 2. It is a certified M-Class extractor, retaining at least 99.9% of dust with occupational exposure limits in the medium-risk category. Together with the LHS 2, the system captures up to 90% of plaster dust at the source.

Two features make this pairing genuinely different from a generic M-class vac:

• AutoClean filter pulsing. Plaster dust loads the filter rapidly. The CTM 36 AC PLANEX automatically pulses the filter every 15 seconds, dislodging the cake of dust so suction stays at full strength — no need to stop, swap filters, or fight against falling extraction performance partway through a ceiling.
• Auto-start appliance socket. Plug the PLANEX into the onboard socket. Pull the trigger and the extractor fires up. Release the trigger and it runs on for several seconds to clear residual dust from the hose before shutting down.

The consumables: Granat 225 mm abrasive Systainer set

Generic plaster abrasives clog fast, lose grit early, and leave the surface with visible scoring. Festool's Granat Abrasive Disc Systainer Set 225mm is engineered specifically for plasterboard and skim-coated surfaces.

Granat is a high-performance abrasive with anti-clog stearate coating, designed for the fine, sticky dust that plasterboard produces. The Systainer set bundles a graded range of grits — coarser for joint compound, finer for skim-coated finish work — in a single labelled storage case. One purchase, one place, every grit you need for plaster prep.

The accessory: soft fillers / plaster interface pad

Standard PLANEX backing pads are firm — perfect for taking down joint compound and levelling rough work. But for the final pass on freshly skim-coated walls, or when working over soft fillers, the standard pad can score the surface.

The PLANEX 2 Soft Fillers / Plaster Interface Pad 220mm sits between the backing pad and the abrasive disc, adding a softer compliant layer that conforms to the surface. The result is a clean, mark-free finish on light-fill and skim-coated work — the kind of finish that paints up cleanly without telegraphing scratches through the topcoat. Swap it on and off as needed; the standard backing pad does heavy work, the interface pad finishes.

The storage: Systainer³ SYS 4 for 225 mm abrasives

Loose abrasive discs in a ute toolbox get bent, contaminated, and impossible to sort by grit. By the time you're on site and ready to sand, you've spent five minutes finding the right grade and another five wondering whether the disc you've pulled out is genuinely a P120 or a P180.

The Systainer³ SYS 4 for 225 mm abrasives solves both problems. Each grit gets its own labelled slot in a single Systainer that locks onto the top of your CTM 36 AC PLANEX. Roll the whole stack to the next room, pop the lid, grab the grit, get on with it. The Systainer³ stacks and locks to the rest of your Festool kit — and to your van rack — so the plaster prep system travels as one unit.

The ergonomics: harness and arm extension

Overhead ceiling work is the hardest part of any plaster prep job — even with the PLANEX 2's telescoping shaft taking trestles out of the equation, holding the machine at full extension for 40 minutes taxes the shoulders. The Adjustable Harness for PLANEX (576802) transfers the weight of the machine to your torso via a shoulder harness, reducing arm fatigue on extended ceiling runs. It adjusts to any operator height and folds flat into its own Systainer for transport.

For rooms with ceilings above 2.7 m — commercial fit-outs, stairwells, or high-set residential — the PLANEX Arm Extension for LHS 2 PLANEX (205416) extends reach beyond the standard telescoping shaft. Attach it between the machine head and the shaft to add the extra height required — no scaffolding, no ladders.

Why the plaster prep system matters for your business

• Two-thirds less sanding time per room. Forty minutes versus 120. Across a five-room job that's an extra three hours back in your day — or a whole extra job per fortnight.
• A finish that doesn't telegraph through paint. The articulated head and Granat abrasives produce a flat, swirl-free surface that paints up cleanly. Fewer callbacks, better referrals.
• Up to 90% dust capture protects your lungs. Plaster dust, joint compound, and overcoat sanding generate fine particles that linger in the air. M-class extraction with AutoClean filter pulsing keeps you working in a clean environment all day.
• Cleaner sites mean better client experiences. Working in occupied homes, retail fit-outs, or finished offices? Up to 90% dust capture means furniture stays clean, air conditioning stays uncontaminated, and clients notice the difference.