18+ years of lubrication experience
Deep Penetrations
Head-to-Head

PB B'lastervsKroil

PB B'laster and Kroil, claymation figures brawling in a miniature boxing ring
PB B'laster Penetrating Catalyst

PB B'laster

The mechanic's choice. Penetrates deeper. Stays longer.

Where It Wins

  • +Half the price
  • +Widely available at auto parts stores
  • +Excellent for daily shop use
  • +Large can size
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Kroil Original Penetrant Oil

Kroil

The legend. One-millionth of an inch. Nothing is too tight for Kroil.

Where It Wins

  • +Deeper micro-penetration
  • +Better for precision machinery
  • +Aerospace and firearms approved
  • +Stays active longer
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Spec Comparison

SpecPB B'lasterKroil
Satisfaction96%98%
Penetration DepthVery DeepMaximum
Price Tierbudgetpro
Volume11 oz13 oz
Best Forautomotive repair, rusted exhaust bolts, seized suspensionprecision machinery, firearms, aerospace
The Verdict

Kroil penetrates deeper; PB B'laster offers 90% of the performance at half the price.

The penetrant purist's dilemma. Both are dedicated penetrating oils, but Kroil's molecular structure gives it an edge in the most extreme cases. PB B'laster is the value play: excellent penetration at a fraction of the cost. Most mechanics use PB daily and save Kroil for the impossible jobs.

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