


🔧 Spot the difference, own the fit — precision in every stroke!
Permatex 80038 Prussian Blue Fitting Compound is a non-drying, low-viscosity liquid designed to highlight high spots on machined surfaces such as bearings, valves, and gears. Its vivid Prussian Blue color ensures clear visibility, while its easy clean-up formula makes it an indispensable tool for precision fitting in automotive, mechanical, and industrial maintenance applications.














| ASIN | B000HBM86Q |
| Best Sellers Rank | #10,993 in Automotive ( See Top 100 in Automotive ) #20 in Chrome & Metal Polishes #124 in Automotive Paint & Paint Supplies |
| Brand | Permatex |
| Color | Factory |
| Customer Reviews | 4.7 4.7 out of 5 stars (881) |
| Date First Available | April 1, 2004 |
| Is Discontinued By Manufacturer | No |
| Item Form | Liquid |
| Item Package Quantity | 1 |
| Item Volume | 22.5 Milliliters |
| Item Weight | 0.634 ounces |
| Item model number | 80038 |
| Manufacturer | Permatex |
| Manufacturer Part Number | 80038 |
| Material | Aluminum Oxide |
| Model | 80038-CAN |
| National Stock Number | 8010-01-329-6150 |
| OEM Part Number | 80038 |
| Package Information | Tube |
| Product Dimensions | 1.63 x 4.63 x 4.63 inches |
| Special Feature | High Spot Locating |
| Special Features | High Spot Locating |
| Specific Uses For Product | Fleet and plant maintenance. |
| UPC | 079340800380 |
| Viscosity | Low Viscosity |
| Viscosity Level | Low |
| Water Resistance Level | Not Water Resistant |
N**S
Great for carpentry and mechanical work
A very handy addition to any tool kit - I use this more than I thought I would. The blue is very deep so you can easily see it on the items marked. I even use it for tile jobs.
J**R
Works very well and easy to use
I Used it to level exhaust manifolds, apply with a paint brush to a sheet of glass and the high spots really stand out. Way better than trying to make it yourself and a little go's a long way. And you can use it on gears and bearings to check your shims. So I'll get a lot of future use out of it
C**Y
Great for setting the backlash on axles
Just switched the ring and pinion from a 3:42 to a 3:08 and this was ideal for helping show the mesh pattern between the pinion and ring when I was setting the backlash. There are no clunks or wines from the new axle after using this. Great price and every bit as good as the yellow paint alternative.
M**S
Machinists Bluing, adheres well to gauges.
Product is as described and meets my expectations. Delivered on time in good condition.
A**A
Used this for a differential gear project
This is not as visible as the paste some differential install kits come with but It does the job
P**I
Good stuff to have around.
This stuff came in handy for a few tasks on this last engine build. I was able to see where the Jesel belt drive was contacting the block to grind that part away so the cover set flush. I was also able to use some contrasting Dykem on my intake manifold and use this on my intake gaskets installed on the heads to see how much was needed to be massaged in the intake so that the ports matched my cylinder heads. So this is something that’s good to have around. Especially if your going to be building an engine and you have many aftermarket parts as with stacked tolerances ya never know what you might need to tweak or adjust to make things fit or do it works.
T**T
Works as it should
Worked prroperly. Recomend.
M**E
This worked well to see starter gear and flywheel engagement
This worked well for what I needed to see, which was the engagement of a starter motor pinion with the ring gear on the flywheel. The blue colorant did clearly show what I needed to see.
R**O
Excelente producto
U**1
Perfect genuine product
M**D
Did exactly what I expected it to do and the speed it came from Latvia was incredible.
M**M
Excellent transfer to workpiece from gauge with thin film.
C**S
Es muy bueno para usarlo para marcar o rayar las zonas de corte.
Trustpilot
2 weeks ago
2 weeks ago