Best Tire Sealants

Seal small punctures before they strand you. Picks for tubeless setups and tubed commuters.

1. EDITOR’S PICK
   

   Best Overall SLIME

   Slime 2-in-1 Tire and Tube Premium Sealant (16 oz)

   ★★★★★★★★★★ 4.5 (7,654) $11.98 onamazon as of Aug 7

   The sealant most riders buy, and it works in both tubed and tubeless tires, which covers nearly every e-scooter and budget ebike on the road. Squeeze it in through the valve and small punctures seal themselves before you notice them. At $11.98 it is the cheapest flat insurance a PEV can get, and the 32 oz jug (ASIN B08TFGLRL1, $17.98) is the better per-ounce deal for fat tires or multiple rides.

   Buy on Amazon
2. 

   Editor's Kit Pick STAN'S NOTUBES

   Stan's NoTubes Tire Sealant (500 ml / 16.9 oz)

   ★★★★★★★★★★ 4.8 (14,566) $22.00 onamazon as of Aug 7

   Stan's is the default answer in tubeless bike circles, and it carries straight over to tubeless ebike setups. It seals punctures up to a quarter inch, and the low freeze point keeps it working through winter commutes. The 500 ml bottle covers a pair of ebike tires with a few top-offs to spare each season.

   Buy on Amazon
3. 

   ORANGE SEAL

   Orange Seal Endurance Tubeless Sealant (16 oz)

   ★★★★★★★★★★ 4.8 (1,753) $23.09 onamazon as of Aug 7

   The number one seller in Amazon's tire repair category, and the sealant riders name most often alongside Stan's. The Endurance formula trades a little raw sealing speed for months of extra life inside the tire, so top-offs come less often. That trade suits commuter ebikes that rack up daily miles on tubeless rubber.

   Buy on Amazon
4. 

   FLATOUT

   FlatOut Off-Road Multi-Purpose Tire Sealant with Kevlar (32 oz)

   ★★★★★★★★★★ 4.5 (2,379) $29.99 onamazon as of Aug 7

   The heavy-duty option. Kevlar fibers back a claimed half-inch puncture rating, which is why fat-tire ebike owners in goathead country swear by it on forums, and the formula never hardens, so one treatment is meant to last the life of the tube. Overkill for a light scooter, exactly right for a 26x4 fat tire.

   Buy on Amazon
5. 

   TANNUS

   Tannus Armour Tire Insert (20 x 3.0-4.0)

   ★★★★★★★★★★ 4.2 (743) $75.90 onamazon as of Aug 7

   A foam shield sits between the tire and the tube, so thorns and glass never reach the air. Ebike forum users report thousands of flat-free miles on fat tires with these installed, and this 20 x 3.0-4.0 size fits the huge wave of 20x4 folding fat-tire ebikes. The $76 spend and the longer install buy prevention instead of repair.

   Buy on Amazon
6. 

   MR. TUFFY

   Mr. Tuffy Bicycle Tire Liner (Silver, 26 x 1.5-1.9)

   ★★★★★★★★★★ 4.5 (3,120) $22.99 onamazon as of Aug 7

   Mr. Tuffy liners have guarded bike tubes for decades. The tough plastic strip lines the inside of the tire and stops thorns and glass cold, and unlike sealant it never dries out. Match the size to your wheel: this 26 x 1.5-1.9 fits many commuter ebikes, and other sizes cover 20 inch and 700c wheels.

   Buy on Amazon