Seal-zit® tyre additive Seal-zit, marketed exclusively by Bridgestone Mining Solutions Australia is a specially formulated light viscosity fluid that offers exceptional tyre and rim protection when added to the tyre air chamber.

Proven over the past 40 years, it is an essential tool in prolonging tyre and rim life - which is particularly important given the current global tyre shortage.

Seal-zit has three key functions:

  • As a rust-inhibitor on wheels and rims
  • As a tyre coolant
  • As a tyre/rim sealer.


The use of Seal-zit ensures wheels and rims remain rust-free, prolonging wheel, rim and tyre life and making the removal of tyres for servicing much simpler. It eliminates difficult demounting, as well as the need for sandblasting and painting. Rims that are alread scaled with rust can easily be cleaned prior to tyre removal. On-going use of Seal-zit means no messy compounds are needed for beads or rims, and gutters will be kept free of rust and scale.

Tyre coolant

It is a proven fact that cooler tyres last longer. Seal-zit substantially reduces tyre running temperatures, prolonging the life of tyres.

Tyre-rim sealing

Seal-zit reduces normal air loss between regular tyre pressure checks by at least 60%. Under-inflation is a key factor in shortening tyre life.

Bead seats

O-rings, vent hole leaking, blistered or cracked inner liners (even liners that are lifted loose from the ply) are sealed off very effectively by Seal-zit.

Safety and environment

Seal-zit is a nonflammable substance and is safe for personnel and equipment, because its active ingredient is food-grade propylene glycol. To dispose, simply dilute it with copious amounts of water. Using Seal-zit can also help tyre maintenance crews discover cracked rims before any cracks are large enough to become a hazard. And because no fibres or fillers are used in Seal-zit, rim cracks or serious tyre damage can lose air normally, reducing the chance of tyre loss or blowout as injured area expands i n size (as may occur when puncture-sealing products are used).

Please click here to view the Seal-Zit Material Safety Data Sheet.

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