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Pattex Re-New vs replace silicone

Updated: 23 October 2026

The bead is yellow, it is still stuck, and you would rather coat it than cut it out. Pattex Re-New vs replace silicone is that one decision. A coating is for a bead that has not let go. A loose or leaking edge comes out, and then you lay a new sanitary bead. This page does not pick the friendlier sentence on the Re-New sheet. Prices are the amazon.co.uk snapshot of 19 October 2026. The full table is the [Pattex silicone comparison](/hub/fillers-adhesives-and-sprays/pattex-silicone). We did not coat a shower and wait a year. A qualifying purchase can earn us a commission at no extra cost to you.

The bead is yellow, it is still stuck, and you would rather coat it than cut it out. Pattex Re-New vs replace silicone is that one decision. A coating is for a bead that has not let go.

Our top picks

Pattex Pattex neutral anti-mould sealant, 300 ml, white

Best overall

Pattex Pattex neutral anti-mould sealant, 300 ml, white
9.2/10about £14.07
View offer
Pattex Pattex Re-New sanitary cartridge, white, 280 ml

Rank 2

Pattex Pattex Re-New sanitary cartridge, white, 280 ml
8.0/10about £14.28
View offer
Sista Sista Neue Fuge joint sealant, white, 80 ml

Rank 3

Sista Sista Neue Fuge joint sealant, white, 80 ml
7.4/10about £16.87
View offer
On this page
  1. 1.Stuck and stained, or loose
  2. 2.What Re-New and Neue Fuge say
  3. 3.What fails in a wet shower
  4. 4.The new bead after you cut

Stuck and stained, or loose

Run a thumbnail or a plastic scraper along the edge. If the bead is yellow and it stays attached, with no split and no gap that weeps, you are looking at a coating. If the edge has lifted, the black is inside the rubber, or water tracks out when you shower, you cut it out. UniBond's UK note makes the same split for its own sealant: surface mould can be cleaned, and mould that has gone deep means remove and replace. New silicone bonds to the old skin rather than to the tile, which is why a coat on a loose bead fails. A bead you can peel is a cut. If water is through the ceiling, or the tray has dropped, that is a professional, not a bottle.

What Re-New and Neue Fuge say

Pattex Re-New is a white 280 ml cartridge at about £14.28, 4.2 from 370 ratings. The bullets say you renew the seal without cutting out the old silicone, with a gun, and they name shower, at a stated yield of about 20 m. Sheet NRPTX50050 names showers and then excludes showers, wet rooms and permanent damp. Quote both. Keep the joint dry for at least six hours. The sheet's bottle line is about 5 m. Do not add that to the cartridge's 20 m. Sista Neue Fuge is 80 ml at about £16.87, 3.9 from 639 ratings, with no gun. The November 2021 sheet wants a sound joint about 3 to 7 mm wide, tooled with water, not washing-up liquid, and at least six hours dry. One review did not cover 3 m of kitchen. Neither product fills a gap scraped back to the tile.
Pattex Pattex neutral anti-mould sealant, 300 ml, white

Testsieger

Pattex Pattex neutral anti-mould sealant, 300 ml, white
9.2/10about £14.07
View offer

What fails in a wet shower

The written reviews are not a lab. On Re-New, notes from Italy and Spain include a coat that held on one tray, and repeats of a soft film, lift in water, a wide spout and stock past its expiry. The sheet's shower exclusion is why that pattern is not a surprise. On Neue Fuge the notes are from Germany. People turned a short joint white without cutting. The same notes say the paste is runny, the smoother cannot coat a bead, and it lifts at the first clean. If the shower cannot stay dry for six hours, the coat comes off. Cleaning a surface stain on a sound bead is still allowed. Coating a leak is not.

The new bead after you cut

Once the old silicone is out, the joint has to be dry and bare. The new-bead listing is the 300 ml white anti-mould cartridge, the top pick for a new sanitary bead, at about £14.07, 4.4 from 1,157 ratings, for sinks, baths and shower cubicles. It is not a coating, and the technical table does not state a water-resistance level. Acetoxy limits exclude plastic baths and natural stone. That is not a reason to try Re-New on acrylic. Re-New already drops showers, wet rooms and natural stone. The 50 ml tube is the best value only for a short cut-out when you have no gun, not a whole bath, and not the best price per millilitre. A shower the next morning opens a joint that has only skinned. If the tray has dropped, call someone. If your thumbnail could not lift a yellow bead, you may coat it and keep it dry for at least six hours.

Common questions

When is a yellow bead still a coating job?
When it is still stuck along its length, the colour is on the surface, and water is not tracking behind it. Re-New and Neue Fuge are sold for that coat. Tool Neue Fuge with water and wait at least six hours. If a corner lifts while you wipe it, you cut.
When must you cut the bead out?
When the edge has lifted, the bead has split, the black is inside it, or the joint leaks. A coating bonds to the old skin. It does not stick that skin back to the tile. A bead you can peel with your fingers is enough evidence.
Why does Re-New mention showers and then exclude them?
Sheet NRPTX50050 names showers, bathrooms, toilets and kitchens, then says not showers, not wet rooms and not permanent damp. The amazon cartridge also names shower. Choosing the friendlier line puts a coat in a wet room the sheet told you to avoid.
Is Neue Fuge a new joint in an empty gap?
No. The listing says apply it to the old joint. The sheet describes a coat on a sound joint about 3 to 7 mm wide, not a fill scraped back to the tile. If the gap is empty, you want a sanitary cartridge after the cut.
Which listing is the new bead if you cut the old one out?
The 300 ml white anti-mould cartridge, at about £14.07, for sinks, baths and shower cubicles. Use the 50 ml tube only for a short replacement with no gun. Do not replace a cut-out bead with Re-New or Neue Fuge.

Related pages

Pattex silicone buying guide

Best Pattex silicone

How to apply Pattex silicone

Pattex silicone

Pattex silicone bathroom: mould, baths and showers

Sources

Manufacturer sheets and a GOV.UK damp page used for this comparison. amazon.co.uk prices, stars and review counts were taken from the listing files on 19 October 2026. Many written reviews are from Italy, Spain, Germany or France.

  1. Pattex Sanitary & Building Silicone, 9 April 2020 (retrieved 20 October 2026)
  2. Pattex Sanitary Silicone, 27 November 2025 (retrieved 20 October 2026)
  3. Pattex sanitary antimould pressure pack (retrieved 20 October 2026)
  4. Pattex Re-New, NRPTX50050 (retrieved 20 October 2026)
  5. Sista Neue Fuge, 4 November 2021 (retrieved 20 October 2026)
  6. Pattex SL 620 Fusion, June 2018 (retrieved 20 October 2026)
  7. Pattex AC411 technical sheet (retrieved 20 October 2026)
  8. GOV.UK damp and mould in the home (retrieved 20 October 2026)