Hook-and-Loop Sponge Float

• Art. Nr: 611685 Hook-and-Loop Sponge Float; 611686 Sponge Float
• Size: 130 mm × 270 mm (611685); 130 mm × 305 mm (611686)
• Construction: 611685 hook-and-loop sponge holder, supplied without a sponge; 611686 sponge bonded to a perforated plate
• Handle: green soft-grip (611685); blue soft-grip (611686)

Product Name & Model

Hook-and-Loop Sponge Float
Art. Nr: 611685 — 130 mm × 270 mm

Companion product in the Leading Tools Float range: Sponge Float
Art. Nr: 611686 — 130 mm × 305 mm

These are two separate products, not one product with two art numbers

Leading Tools lists these as two independent products, each with its own product name, art number and size:

• Hook-and-Loop Sponge Float — 611685 — 130 mm × 270 mm. It has a flat black backing plate and a green soft-grip handle carried on two black end-blocks that fan out into webbed reinforcing ribs running to the plate corners. It is supplied with no sponge fitted: that is the point of the tool: the working face is a hook face, and the sponge is a separate consumable the user attaches and swaps.
• Sponge Float — 611686 — 130 mm × 305 mm. It has a blue soft-grip handle on two black end-blocks, mounted on a perforated (punched-hole) plate, which is in turn bonded to a thick white open-cell sponge block that projects slightly beyond the plate on all four sides. The sponge is part of the tool and is not removable.

Every section that carries specification data lists both 611685 and 611686, so the two can be compared side by side before ordering.

What the tool does

A sponge float is a finishing tool, not a placing tool.

It is used at the closing stage of plastering and rendering, after the material has been laid on and leveled, and after it has begun to set, to compact the surface, draw the fine material to the top, and erase trowel lines, giving an even, slightly open, breathable texture.

The same mechanism (a damp open-cell sponge on a rigid backing plate with a handle) is used in tiling to wash off grout haze, dress the joint face and clean adhesive residue from the tile face. Both trades use the same tool.

Core Features

Hook-and-Loop Sponge Float 611685

• 130 mm × 270 mm working face. A one-hand-width plate that still spans enough surface to close a wall face quickly.
• Hook-and-loop working face. The sponge is a separate consumable pressed onto the hook face and peeled off by hand: no tools, no fasteners. The float body is supplied without a sponge; for sponge pads, please contact us.
• Sponge pads. Pad pore grades and supply: please contact us.
• Flat black backing plate.
• Handle mounts. Two black end-blocks fan out into ribs that run to the plate corners.
• Green soft-grip handle, positioned so the tool can be driven with one hand for detail work or two hands for pressure control on broad areas.
• Cross-trade tool. Sold into plastering as a finishing float and into tiling as a grout-haze and joint-dressing tool.

Sponge Float 611686

• 130 mm × 305 mm working face. This is 35 mm longer than 611685 and is close to the 12" × 5" size (about 305 × 127 mm; 1" = 25.4 mm).
• Sponge permanently bonded to the plate. One integral unit. There is nothing to attach, nothing to lose on site, and nothing to swap: the pore grade is decided at purchase.
• Perforated (punched-hole) mounting plate: the plate face is covered in a regular pattern of round holes rather than being a solid sheet.
• Thick open-cell sponge block that projects slightly beyond the plate on all four sides. The overhang means the sponge, not the plate edge, is what meets an internal corner.
• Blue soft-grip handle on two black end-blocks.
• Sized for broad flat work. The extra 35 mm of length gives more coverage per pass and a longer bearing line, which is what keeps a float flat over a wall face rather than rocking.

Product Advantages

Why plasterers close with a sponge rather than a steel trowel

A steel trowel pressed onto setting plaster closes and densifies the surface.

That is exactly what you want on an interior gypsum skim you intend to polish, and exactly what you do not want on lime plaster, render, monocouche and exterior stucco, where the finish has to stay breathable so the wall can dry outward and move without crazing. The sponge float compacts and evens the surface while leaving the pore structure open, Lime plaster is normally closed with a wood or sponge float to keep the surface open.

It removes trowel lines instead of adding them

The problem the sponge float solves is the record of the previous tool. Trowel lines, laps and the chalky laitance that rises during leveling are all lifted and redistributed by a damp sponge worked in circles or a figure-of-eight, which brings the fine material back to the surface and merges the passes into one continuous face.

611685: one body, replaceable sponge pads

The removable-pad construction means:

• The consumable is the sponge, not the tool. When the pad tears, hardens or clogs beyond cleaning, you peel it off and press a new one on. The plate, the handle and the mounts stay in service.
• Pad changes take seconds, mid-job. Swap the pad between the finish pass and the base coat. For pad pore grades, please contact us.
• One tool covers two trades. The same float does plaster finishing and tile grout clean-off; only the pad changes.

611686: no parts, no inventory, no pad to lose

A bonded float is the right answer when the texture is decided before the job starts and will not change: production rendering, a single-finish contract, a second tool kept in the van, or a crew where sponge pads simply do not come back. There is no hook face to contaminate, no pad to peel off in a bucket, and nothing to reorder.

Size

611686 at 130 × 305 mm is close to the common 12" × 5" size. 611685 at 130 × 270 mm is 35 mm shorter.

How to Use

When to Use a Sponge Float

The single most common mistake with this tool is timing, and it is not a matter of the clock but of the state of the surface. Sponge floating is done after the material has taken its initial set, when the wet sheen has gone and the surface is firm but the top film is still workable.

The test is a fingertip or thumb press:

Material-specific guidance:

• Sand-and-cement render and monocouche: wait longer: until the surface is "thumb-print hard", i.e. a thumb press marks it but the material has already stiffened.
• Lime plaster: wait for partial set, and then work light and dry. Going in too early on lime drags the surface into scratches.

Basic Technique

Two-hand use

On broad walls and floors, put both hands on the handle to distribute pressure evenly across the plate; the 270–305 mm plate lengths of these two models make a two-hand grip practical. Rotating the tool roughly 90° between passes distributes wear across the sponge instead of concentrating it on one edge.

Application: lime plaster and heritage restoration

Lime plaster behaves differently from gypsum: it cures by carbonation and the wall has to be able to breathe. A steel trowel can close the face more densely, so lime plaster is normally closed with a wood or sponge float. Work at partial set, with a well squeezed-out sponge, light pressure and small circles. If the surface starts pulling or scratching, you have gone in too early; stop and let it firm before returning to the sponge.

Application: sand-and-cement render, monocouche and exterior stucco

On exterior render the sponge float does two jobs at once: it flattens out the closing trowel's laps and it sets the final texture. Because the surface has to be thumb-print hard first, the practical routine on a render job is to lay on and rule off the whole elevation, then come back and sponge in the same order, so each area is at the same state when you reach it.

Application: EIFS / external insulation and finish systems

The sponge float is among the tools used for finishing cementitious base coats and acrylic finish coats, alongside plastic floats, trowels and rollers. What it is not used for is cutting the scratch-coat texture: that mechanical key is made with a scarifier, a different tool at a different stage. Treat this as a finishing float on an EIFS wall, not a texturing tool for the base.

Application: tiling: grout haze and joint dressing

The hook-and-loop sponge float (611685) is a standard tiling tool as well as a plastering one.

After grouting, once the grout has stiffened, a damp sponge on a holder is used to wash the grout haze off the tile face, dress and shape the joint, and lift adhesive residue, the holder giving flat, even pressure that a hand-held sponge cannot. The discipline is the same as in plastering: squeeze the sponge out until damp, rinse often, and do not flood the joints, because excess water washes the cement out of fresh grout.

FAQ

Q1: Are 611685 and 611686 the same product in two sizes?
A: No. 611685 (130 × 270 mm) is a float with a hook-and-loop face that takes removable sponge pads, while 611686 (130 × 305 mm) is a float with the sponge permanently bonded to a perforated plate. 611685 is supplied with no pad fitted, so contact Leading Tools for box contents and replacement pads.

Q2: What pore grade should I buy?
A: Sponge pore grade and pad supply: please contact us.

Q3: I am getting drag marks and scratches, or plaster is sticking to the sponge. What is wrong?
A: Either the sponge is clogged with set material, so rinse it thoroughly and replace the pad if it will not clear, or you went in too early, before the surface took its set.

Wait until the sheen has gone and the surface is firm to a press. The sponge should be damp, not dripping, since too much water drags the binder out of the face and leaves a weak, dusty finish.

Q4: The pad will not stay on the hook face, and when do I replace the sponge?
A: If the pad will not stay on the 611685, the hook face is fouled with dried material or the pad was not pressed down over its whole area, so brush the hook face out and press the new pad firmly across its full width.

Replace the sponge when it stops absorbing water, or when it has tears or hardened areas that will not clear. On 611686 the sponge is bonded, so the whole tool is replaced.

Q5: Can I use this tool for tiling as well as plastering?
A: Yes. The hook-and-loop sponge float is a standard tiling tool for washing off grout haze, dressing joints and clearing adhesive residue from tile faces. Use a clean pad, squeeze it out well and rinse often so you do not wash cement out of fresh grout.

Specifications Overview

Hook-and-Loop Sponge Float (611685)

Sponge Float (611686)

Key differences: 611685 vs. 611686

Selection Guide

Choosing between 611685 and 611686: and when to buy both

They are complementary, not alternatives. A workable set-up is 611686 as the everyday bonded float, plus 611685 with pads for jobs that need a different texture or a tiling clean-off. Because 611685 is 35 mm shorter, it is also the more maneuverable of the two in tight areas, at reveals, and overhead; 611686's extra length is the advantage on open wall and floor areas.

Sponge pore grade

Sponge pore grade determines the finish. For the pore grades available for 611685 and for the sponge on 611686, please contact us.

Size selection

Both tools share the same 130 mm width; only length differs (270 mm and 305 mm). Practical effects of the 35 mm:

• 611686 (305 mm): more coverage per pass; a longer bearing line, which helps keep the face flat on open wall and floor areas.
• 611685 (270 mm): easier to steer in tight areas, around openings, and overhead, where the shorter plate is less inclined to catch an adjacent surface.

Selecting by material and job

Full Size Reference

Complete art-number and size reference for this product group.

Imperial equivalents (1" = 25.4 mm): 611685 ≈ 5-1/8" × 10-5/8"; 611686 ≈ 5-1/8" × 12".

Other products in the Leading Tools Float group

Consumables

611685 takes hook-backed sponge pads. Contact Leading Tools for pad grades and replacement-pad art numbers.

Care & Maintenance

After each use

• Rinse in clean water immediately, before anything sets. Plaster, cement, lime and grout all cure: once they are hard inside the pores they do not come out, and a clogged sponge stops absorbing and starts scratching the work.
• Squeeze, do not wring hard. Twisting an open-cell foam block tears it.
• Inspect the sponge for tears, hardened patches and pores that will not clear. On 611685, replace the pad; on 611686, that is the end of the tool.

611685: hook-and-loop float specific

• Changing the pad: peel the worn pad off the hook face and press the new one down firmly over its whole area.
• Keep the hook face clean. Dried plaster in the hooks is the usual reason a pad stops holding; brush the hook face out with a stiff brush when it fouls.
• Store spare pads flat. Folding or creasing a foam pad leaves a permanent line that shows in the finish.

Plate and handle

• Backing plate: check for cracks and deformation. A plate that is no longer flat puts uneven pressure through the sponge and shows up as banding in the finish.
• Perforated plate (611686): check that the punched holes are clear and that the bond between plate and sponge has not begun to lift at the edges.
• Handle: check the handle-to-plate mounts; a loose handle transfers rocking straight into the surface.
• Storage: store flat and dry so the plate does not warp and the sponge does not set into a compressed shape.

Deep cleaning

Soak the sponge in warm water with a mild detergent to clear the pores.

Replacement intervals

The reliable rule, rather than a calendar: replace the sponge when it stops absorbing. A sponge that no longer takes up water has hardened material in its pores, and from that point it drags rather than closes the surface.