Schwalbe Doc Blue Puncture Sealant - 500ml
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Schwalbe Doc Blue Puncture Sealant - 500ml
Code: 41138/500
Liquid Patch for use to repair or preventing punctures - 500ml bottle.

The liquid patch. Works fast and reliably. Doc Blue seals holes in tubes, tubulars or tubeless systems. Use for repair or preventing punctures. Puncture protection liquids have been around for a long time, but all existing products were unable to meet Schalbe's demanding standards. Doc Blue combines several different principles and is therefore much more effective.  Finally, now there is a simple and effective solution for puncture repair and prevention in tubeless systems and tubulars


  • Approx. 50 ml per tire.
  • For large volume tires (width 57mm or more) increase the dose to 75 ml.
  • 25 ml is sufficient for racing cycle tyres.
  • Ensures effective puncture protection for around 3 months.
  • Punctures are sealed automatically while riding.
  • Doc Blue is not intended to seal large holes caused by cuts or bursts.
DMThe sealant seems to do the job, however it was very difficult to remove the tyre from the rim after only a week or so - the sealant acted like glue and it was very tricky to remove the tyre.
Tricky WigginsExcellent sealant with small bottle to facilitate injecting sealant through valve.
CharlesNice little kit that comes with sealant, filling bottle and valve core remover tool.
Mr NaylorDoes what it says on the tin. Never had a problem with this stuff and I prefer it over other brands,
Mr GreenExcellent item, this is actually made by Stans, so the same stuff I normally buy but comes with really useful 50ml applicator bottle.
MarkGood quality and having the smalll dispensing bottle included in this size allows you to fill through the valve and helps to avoid the mess of having to pour it in with one bead off the wheel
TomMade by Stans, so as you'd expect, it does a good job of sealing against punctures. Plus this comes with a handy applicator bottle and is often cheaper too. This is my 4th bottle so what more can be said?
Mr stirlingUsing pro one tubeless so wanted to use all Schwalbe stuff. Decent price and handy 'applicator'. Merlin service good and best value on the web.
Phil TThe mini injector bottle is useful and made setup easy. Cheaper sealants around but not a rip off.
C NHad everything I needed to put sealant in my road tyres, large bottle of sealant so plenty to spare, small bottle to inject into tyres through valve and valve remover. All good, not had a puncture yet, so can’t say how effective it is. Quite runny, so just needs care when putting it in the tyre to not get it everywhere.
EricOther sealants are available folks, but I prefer to stick with Schwalbe's sealant for use on my Schwalbe Pro One tyres
Mr SandersonEasy to use - topped up my tyres with no difficulty - time will tell on effectiveness of sealant.
Mr AgnewDoes the job nicely, in fact, this stuff is miraculous!
PhilThis kit is great - contains the big 500ml bottle of sealant, plus a 60ml bottle to measure the 'dose' into the tyres and a good quality metal valve core removal tool - great kit, excellent value and Merlin fast service - what's not to like ?