Park Tool ASC-1 Anti-Seize Compound

(837 Reviews)

Price
$9.95

Quantity
(10000 available )

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100 Ratings
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Reviews
  • Odie

    > 3 day

    Works as expected, run some along your pedals before screwing in. Wish they had a smaller tube size though

  • DBDerb

    > 3 day

    Good for those who know how to use this. If you dont remember this..... this isnt greese and not be used on anything you want to move ( ie; hub bearings). This is best used for pedal installation, bike post lubrication, handlebar ( where it attaches to the headset) lubrication.

  • Sang H Lee

    > 3 day

    We never had these things when I grew up

  • Kristin

    > 3 day

    As with every Park Tool purchase, you get what you pay for and that is super HIGH quality products. This has been great to use and so far no issues. Park Tool is the best!

  • Remington

    08-06-2025

    The actual grease is pretty good but there are some problems I’ve had. First, this may sound like a first world problem, but you have to cut the end off which can be a pain. I ended up drilling out the end because I was having so many problems. Then, the second thing, was that the actual tube is not filled up all the way. There is a good amount of air inside the tube just like a bag of chips. You are expecting more then what your actually getting. Overall 3 stars for the problems but the actual paste is pretty good. Works great for what it’s meant for.

  • Lisa Lang

    > 3 day

    I have a lot of titanium on my mid school ride from my former Factory Crupi days. Titanium on titanium is instant gall (If you didn’t know) and titanium on chromoly or chromoly on aluminum is a galvanic corrosion nightmare. This stuff is a life saver! IMO Park Tool is the industry reference.

  • Rob

    > 3 day

    Added this to newly installed pedals. Pedaling feels smooth and I am happy.

  • Juxtaposer

    > 3 day

    Fair price on a long time trusted product.... Lets the job done right!

  • Roberto Quinones

    > 3 day

    Necessary if you want to do the job right and avoid problems later as I prefer to do.

  • Lenny

    > 3 day

    You apply this on joints and threads that are not meant to move against each other, so that you can take them apart in the future. If youre like me, and was clueless about whats the difference between anti seize compound and polylube, watch the video by Park Tools showing the difference. If youre packing ball bearings, use polylube, not anti seize compound. However, you can use polylube to grease threads. So why get anti seize? They are supposed to last longer, and also prevent galvanic corrosion between dissimilar materials. May not matter much with bicycles, especially for parts that get removed and grease reapplied regularly. But I had a tough time removing my old pedals, and decided to get this as it doesnt cost much and I expect to need it somewhat frequently.

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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