Description
Hand sponges are bought on format rather than on brand, and this one sits at the size most trade kits settle on. The 170 × 110 × 60 mm beige sponge is an INSTAR-made synthetic sponge for grout washing and render clean-down, and its footprint is what earns it a place in the van.
Where the Beige Tiling Sponge Works Best on Grout and Render
The tiling sponge 170 x 110 x 60 mm beige is the mid-format hand sponge in the Renders World range, stocked at £2.50 per sponge in August 2026 for washing tile after grouting and cleaning down rendered elevations. Its size is the reason it suits both trades.
It sits in the power floats and sponges range between the compact detail sponges and the bulk formats, and that middle position is the whole proposition: a 187 cm² face moves enough water to be worth carrying up a ladder, while a 110 mm width still wrings out in one hand. Manufacturer literature describes it as a large-pore synthetic sponge intended for washing tiles after grouting, with a structure that lifts residue without leaving streaks.
- Residential bathrooms and kitchens: the format handles a full room of wall and floor grout without a change of tool.
- Render clean-down after finishing: evening out tool marks and lifting dust from a textured face.
- Mixed-trade site work: tools, buckets, beads and trims all come clean faster with a 187 cm² face than with a rag.
- Ladder and access work: light enough to hold one-handed with the other hand on the stile.
Why Trade Installers Choose the Mid Format
This is the sponge bought when the job has no format extreme in it, and at £2.50 it undercuts both bulk alternatives in the range.
- 187 cm² face: larger than any compact sponge stocked here, so bulk haze comes back in fewer passes.
- 60 mm depth: deeper than a thin cellulose pad and shallower than the 80 mm dual sponge, which keeps it stable under hand pressure without becoming a two-handed tool.
- Large-pore synthetic structure: the manufacturer's stated design intent is grout washing without streaking, which is what makes it a wall-finish sponge rather than a general cleaning pad.
- Identified by code and EAN: INSTAR code 10-0322 pins the exact sponge when comparing trade quotes.
- Cheapest of the three mid-and-large formats: at £2.50 it sits below both the dual sponge and the large square KAEM.
Beige Tiling Sponge Specification and Dimensions
| Property | Value | Read from |
|---|---|---|
| Nominal dimensions | 170 × 110 × 60 mm | Store product record, August 2026 |
| Nominal face area | 187 cm² | Calculated: 170 × 110 mm |
| Working depth | 60 mm | Store product record |
| Material | Large-pore synthetic sponge | INSTAR distributor listing, code 10-0322 |
| Manufacturer | INSTAR Sp. z o.o. Sp.k., Limanowa, Poland | INSTAR distributor listing |
| Manufacturer code | 10-0322 | Store SKU field and distributor listing |
| EAN | 5906295869351 | Store product record, August 2026 |
| Price | £2.50 per sponge, August 2026 | Store product record |
| Stock | Listed as available, August 2026 | Store product record |
The weight fields are worth a glance before a small order goes in. The store lists 200 g while the manufacturer's own distributor listing gives 0.4 kg including unit packaging, and the store's figure is the one published here as the lower of the two; either way, code 10-0322 with EAN 5906295869351 is what confirms two quotes are for the same sponge.
No INSTAR data sheet was retrieved this session, so pore grade, water capacity and absorbency figures are deliberately absent above. What the distributor listing does establish is the manufacturer and the design intent, which is more than most sponge listings carry — and it means the "large-pore" description here is INSTAR's own, not a shelf label.
How to Use the Sponge on Tile Grout and Rendered Walls
- Soak it through before the first wipe. New synthetic foam repels water briefly until the cells have wetted right through the 60 mm body.
- Let cement grout take its initial set before washing. Manufacturer instructions for the grout govern the wait, not the sponge, so read the bag.
- Wring to damp, not dripping. A flooded face carries water back into a bedded joint instead of lifting haze off the tile.
- Wipe diagonally across the joints. A diagonal stroke crosses each joint at an angle and lifts haze evenly, where a stroke running along a joint tends to drag grout out of it.
- Run two buckets and rotate the face. One bucket to rinse dirty, one clean for the final pass — dirty rinse water is the usual cause of haze on a surface that was otherwise finished properly.
On render this is the hand pass that follows the machine rather than replacing it, evening out tool marks on a freshly textured surface and lifting dust once the face has hardened. The Renders World guide to power floats for render finishing sets out the full sequence from machine floating through to the sponge pass.
Keep separate sponges for the two trades. Cement grout residue held in the pores can streak a freshly textured silicone render face on the next job, which is a reason to buy two at this price rather than rotate one. The same sponge also earns its keep cleaning mixing paddles and buckets after adhesive work, which is why it is stocked alongside the EPS adhesives basecoats range.
How the Mid Format Compares With the Nearest Sponges
Three sponges in the range cover the same general job at similar scale, and the differences are geometry and construction rather than cleaning action. All figures below were read from the store in August 2026.
| Sponge | Nominal face and depth | Price, Aug 2026 |
|---|---|---|
| 170 × 110 × 60 mm beige (this sponge) | 187 cm² · 60 mm · single density | £2.50 |
| KAEM 20 × 14 × 7 cm large square sponge | 280 cm² · 70 mm · large square | £2.60 |
| Double tile sponge 165 × 100 × 80 mm | 165 cm² · 80 mm · two-layer | £3.50 |
The middle column is where the decision actually sits. For ten pence more the KAEM square gives 93 cm² more face — 280 against 187 — so on open floors and large wall runs it is the better buy, and this sponge earns its place on control and one-handed wringing instead. The double sponge is the dearest of the three and has the smallest face, so it is bought for its two-layer construction rather than for coverage.
Which Sponge to Order for Your Job
- Day-to-day grouting and render clean-down: this sponge, as the default kit item.
- Open floors and large wall runs: the KAEM 20 × 14 × 7 cm square covers more ground for almost the same money.
- Work needing two sponge textures in one tool: the two-layer double tile sponge suits mobile jobs where kit is kept minimal.
- Corners, reveals and mosaic detail: a compact format controls a tight joint grid better than a 187 cm² face.
Most working kits carry two formats rather than one, and Renders World holds the hand sponges and the machine pads on the same trade account so the finishing consumables arrive together. Add this sponge to the order as the general-purpose half of that pair.
FAQ — Buying and Caring for the 170 × 110 × 60 mm Sponge
How many should be ordered for a bathroom or an elevation?
Two is the usual answer at this price, and the second one is not a spare — one stays dedicated to grout and one to render, since residue held in the pores is what carries between jobs. A single sponge completes most rooms comfortably.
Can one sponge be used for both tile grout and render?
The structure suits both surfaces, so yes in principle. In practice cement grout residue can streak freshly textured render, so dedicating one sponge per trade is the reliable route and costs £5.00 for the pair.
How does it differ from the KAEM 20 × 14 × 7 cm square?
Face area is 187 cm² against 280 cm² and depth 60 mm against 70 mm, at £2.50 against £2.60. The square is the productivity choice on open areas; this one is easier to control and wring one-handed on walls and ladder work.
Does it fit the render smoothing machine?
No. This is a hand sponge with no mounting face, and the machine takes its own pads, listed separately in the same collection. On a render job the sponge works the surface after the machine, not on it.
How often should it be rinsed during use?
On grout washing, rinse whenever the face stops lifting cleanly and rotate to a fresh side after each wring-out. On render, rinse less often but change the bucket water as soon as it discolours.
How should it be looked after between jobs?
Rinse it out thoroughly at the end of each session so residue does not set inside the pores, hand rinsing rather than machine washing, and keep it damp while the job runs. Dry it fully before storage, and replace it once the edges break down or the body stops recovering shape after wringing.