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Bar's Leaks

Bar's Leaks 1109 Block Seal Liquid Copper Intake and Radiator Stop Leak - 18 oz.

    • Based on 1,096 reviews
Condition: New
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Availability: 12 left in stock
Fulfilled by Amazon
Arrives Sunday, Nov 17
Order within 13 hours and 19 minutes
Available payment plans shown during checkout

Size: Pack of 1


Features

  • PERMANENTLY FIXES COOLING SYSTEM LEAKS: . One step formula permanently repairs coolant loss problems on cars, trucks, vans, SUVs and RVs.
  • ANTIFREEZE COMPATIBLE - NO DRAINING REQUIRED: Antifreeze compatible sodium silicate liquid glass penetrates large and small leaks in plastic, aluminum and cast iron heads, blocks, intake manifold & gaskets, freeze plugs, heater cores and radiators.
  • ONE STEP - POUR DIRECTLY INTO RADIATOR - EASY TO USE: Fiber additives lock together with liquid to increase strength and promote a permanent seal. It will not harm the coolingsystem when used properly, no draining is required.
  • USE WITH ALL TYPES OF TRADITIONAL OR EXTENDED LIFE COOLANT: Use with ALL types of traditional or extended life coolant including yellow, orange, pink, red, blue, purple and green silicate based & non-silicate based (OAT/HOAT) 50-50 mix antifreeze, and/or water.

Description

Bar’s Leaks® Liquid Copper™ Block Seal Coolant Leak Fix Stop Leak seals larger leaks regular stop leaks won’t. One step formula permanently repairs coolant loss problems on cars, trucks, vans, SUV’s and RV’s. Antifreeze compatible sodium silicate liquid glass penetrates large and small leaks in plastic, aluminum and cast iron heads, blocks, intake manifold & gaskets, freeze plugs, heater cores and radiators. Fiber additives lock together with liquid to increase strength and promote a permanent seal. It will not harm the coolingsystem when used properly, no draining is required. Use with ALL types of traditional or extended life coolant including yellow, orange, pink, red, blue, purple and green silicate based & non-silicate based (OAT/HOAT) 50-50 mix antifreeze, and/or water.

Material: Copper


Brand: Bar's Leaks


Style: 1 Pack


Item Weight: 18 Ounces


Item dimensions L x W x H: 7.5 x 2.6 x 2.6 inches


Material: ‎Copper


Brand: ‎Bar's Leaks


Style: ‎1 Pack


Item Weight: ‎18 Ounces


Item dimensions L x W x H: ‎7.5 x 2.6 x 2.6 inches


Compatible Material: ‎Ceramin


Water Resistance Level: ‎Waterproof


Item Form: ‎Liquid


UPC: ‎046087011096


Global Trade Identification Number: ‎96


Surface Recommendation: ‎Copper


Manufacturer: ‎Bar's Leaks


Item Weight: ‎1.12 pounds


Product Dimensions: ‎7.5 x 2.6 x 2.6 inches


Country of Origin: ‎USA


Item model number: ‎1109


Is Discontinued By Manufacturer: ‎No


Manufacturer Part Number: ‎1109


Date First Available: November 1, 2007


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Nov 17

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Leasing options through Acima may also be available during checkout.

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Similar Products

Top Amazon Reviews

    • Working great!
Size: Pack of 1
Had radiator leak in bottom of my 2010 Honda Civic with 160,000 miles. Used half a bottle of Bars Copper Stop Leak and carefully followed directions. Leak stopped within a day and heat still works fine. 2 months later and my 2010 Civic is still leak free! Tip for those having issues getting it into system, don’t have radiator full when adding and it helps to use a funnel and reach down and squeeze your radiator hose to help Stop Leak to slide down into system, while adding. Then top off radiator. Ensure you take a decent drive after adding and keep heat blasted to ensure Stop Leak fully circulates through system. ... show more
Reviewed in the United States on April 24, 2024 by ALAN M.
    • Needed to work
Size: Pack of 1
Seems to be the answer, had a very slow leak from a freeze plug, so far no more leak
Reviewed in the United States on July 19, 2024 by Rick
    • Works
Size: Pack of 1
This stuff works great. Hope I don’t have to use it again.
Reviewed in the United States on July 23, 2024 by Larry Gonser
    • Works somewhat for head gasket leakage
Size: Pack of 1
I used this for sealing my leaky head gaskets. This is not the product Bars sells for that purpose. However, it still had a significant effect on slowing the leakage. I should have purchased head gasket sealer but I accidentally ordered the wrong product. OK results in spite of my error.
Reviewed in the United States on September 20, 2023 by olmscheid
    • Licks stop
Size: Pack of 1
It did not work as expected Not satisfied with this product
Reviewed in the United States on April 17, 2024 by Satisfied customer
    • Does the job well
Size: Pack of 1
Ease to use and very cheap compared to auto stores, great performance.
Reviewed in the United States on June 27, 2024 by Shakoul Bailey
    • It works
Size: Pack of 1
Stopped my leak completely no issues
Reviewed in the United States on August 1, 2024 by Nicolas southall
    • Looks cool in the bottle...
Size: Pack of 1
...but doesn't seem to have any benefit what-so-ever. At least it didn't clog my radiator lines.
Reviewed in the United States on July 28, 2024 by David Tennes

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