Park Tool ASC-1 Anti-Seize Compound

(837 Reviews)

Price
$9.95

Quantity
(10000 available )

Total Price
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100 Ratings
87
11
1
1
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Reviews
  • ECF

    > 3 day

    Used to keep moisture from between parts which pr vents rust, and keeps parts from literally seizing together. This isnt grease.

  • Zigfried

    > 3 day

    Essential for Ti and (maybe) Li Aluminum bikes!

  • Brice Holland

    > 3 day

    Works really well. Ordered this to lube all the threads putting together a new bicycle. The seat wouldn’t stop squeaking while I was riding, so I took it apart and lubed the assembly. No more squeak. Oh, and it’s also pretty important if you want to be able to maintain your bicycle beyond the initial assembly:)

  • wrpercival

    05-06-2025

    If you do your own bike maintenance and want to make your life easier, use anti-seize on all of your fittings. One tube of this will last years.

  • stokerqueen

    > 3 day

    Large amount in tube - more than expected for the price. A must for titanium frame and aluminum seatpost!

  • Robert

    Greater than one week

    Original product like it should be

  • Thomas G.

    > 3 day

    works fantastically

  • Chelsea Huel

    Greater than one week

    Probably too soon to tell but it looks like good stuff.

  • Blasphemate

    > 3 day

    What can I say? Park Tools stuff just works and it works well. No complaints.

  • Zach

    07-06-2025

    Works as it should. I use this on pedal spindles, stem bolts, etc and have not had problems using a standard hand torque hex getting my bolts to release. I am a heavy and strong rider so my I put a lot of pressure on my threads; so far this product has protected my threads as advertised.

Park Tool ASC-1 being applied to threaded bottom bracket cupPark Tool ASC-1 being applied to threaded bottom bracket cup

Park Tool ASC-1 Anti-Seize Compound

Park Tool Anti-Seize Compound reduces friction in threaded and press fit connections for easy assembly and disassembly. Ideal for bottom bracket and pedal threads, pressed headset cups, seat posts, quill stems, etc. ASC-1 seals and protects parts from corrosion and rust under the most extreme conditions. For use on steel, aluminum, and titanium.

Park Tool ASC-1 comes in a 4 oz. (113 g) tube.

NOTE: Some painted surfaces can be sensitive to oil and grease. Clean off any excess oil or grease immediately. Test first on an inconspicuous area to see if it causes a stain or discoloration. ASC-1 can also stain fabrics - use appropriate caution.

Park Tool offers a full line of greases and compounds for thread and surface preparation:

Park Tool PPL-1 Park Tool HPG-1 Park Tool ASC-1 Park Tool SAC-2 Park Tool TLR-1 Park Tool RC-1
PPL-1 Polylube 1000 HPG-1 High Performance Grease ASC-1 Anti-Seize Compound SAC-2 Assembly Compound TLR-1 Medium Strength Threadlocker RC-1 Press Fit Retaining Compound
Recommended application General purpose grease for bearings, threads, and general assembly Precision ground/ceramic bearings, pivots, suspension components Bottom bracket and pedal threads, pressed headset cups, seat posts, quill stems Seatposts, handlebars, stems Threaded bottom bracket cups, disc brake rotor bolts, stem bolts Press fit bottom bracket parts, pressed headset cups, sealed bearings
Park Tool bike shop repair center vintagePark Tool bike shop repair center vintage

TRUSTED SINCE 1963

Since our origins in the back of a bike shop in 1963, it has been our sole mission to design and manufacture high-quality tools that empower mechanics and riders of all skill levels to service their bicycles. As with our other 500+ tools, our grease is a product of our decades of experience and expertise in the industry, in the shop and on the trail.

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