SKU: 12516073873

Cortec M-640L - Anti Rust Additive for Engine Coolants - 5 Gal Pail

Sale price$194.85 Regular price$216.50
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Ships within 48 hours · Estimated delivery Aug 8 - Aug 13

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Description

Cortec M-640L - Anti Rust Additive for Engine Coolants - 5 Gal PailKey Features: Corrosion inhibiting additive for heat exchange fluids and coolants. Can be added to water and glycol based closed loop systems up to 302F. Contains contact and vapor phase corrosion inhibitors. Protects ferrous and non ferrous metals from corrosion and pitting. Use in low dosages. Cortec's M 640 L is a liquid corrosion inhibiting additive for water and glycol based heat exchange fluids. It protects ferrous and non ferrous metals from

Key Features:

  • Corrosion inhibiting additive for heat exchange fluids and coolants.
  • Can be added to water and glycol-based closed-loop systems up to 302ºF.
  • Contains contact and vapor phase corrosion inhibitors.
  • Protects ferrous and non-ferrous metals from corrosion and pitting.
  • Use in low dosages.

Cortec®'s M-640 L is a liquid corrosion inhibiting additive for water and glycol-based heat exchange fluids. It protects ferrous and non-ferrous metals from corrosive contaminants. This product is an excellent replacement for silicates and phosphate/nitrite-based amine compounds. M-640 L is based on an organic-inorganic formulation designed for low level concentrations in field applications. M-640 L contains a unique combination of contact and vapor phase corrosion inhibitors that provide corrosion protection even in partially filled spaces. M-640 L is nitrite, chromate, silicate and heavy metal free.

Packaging:
Available in 5 gallon (19 liter) pails. Contact Us to get a quote for this product in drums.

Dosage:
The final concentration range for M-640 L under operating conditions is 2.0-2.5% by weight.

Typical Applications:
Use M-640 L as an additive to antifreeze and coolant fluids to replace nitrites, phosphates, amines and other types of restricted corrosion inhibitors. Can be used on closed loops during operation or layup. Metals protected include copper, brass, carbon steel, cast iron and aluminum.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 12516073873

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4.2 ★★★★★
Based on 22 reviews
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Verified Purchase
Eric Marquardt
Waukegan, US
★★★★★ 4
Big
Style: 34 Ounces, Size: 34 Count
Big, and really sturdy. I can put any food in this and trust it will uphold.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 1, 2026
B
Verified Purchase
Binky and Miguel Finds
Whiting, US
★★★★★ 5
Strong, Spacious, and Perfect for Every Meal
Style: 34 Ounces, Size: 34 Count
I’ve been using the Dixie Ultra Extra Large Paper Bowls for a while now, and they really stand out. With a 34 oz capacity, these bowls are big enough to hold hearty meals like soups, stews, and even large salads without worrying about spills. They’re perfect for heavy meals or when you just want a generous portion. What I appreciate most is that they’re compostable, which makes me feel better about using disposable products without harming the environment. Plus, they’re microwave safe, so reheating leftovers is super easy and convenient. The bowls are sturdy and don’t get soggy or flimsy, even with hot or liquid foods, which is a huge plus. Whether you’re having a casual lunch, a family gathering, or need something reliable for everyday use, these bowls deliver both quality and convenience. They handle big meals with ease and clean-up is a breeze. Definitely a smart choice for anyone who wants disposable bowls that actually hold up!
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Reviewed in the United States on May 19, 2025
O
Verified Purchase
Olgi
Belleville, US
★★★★★ 5
Son muy serviciales, y lo mas importante son organicos,
Size: 18oz brown
Los use y no pude tomarle fotos, pero son muy buenos, me encantaron
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Reviewed in the United States on May 13, 2026
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Verified Purchase
KC
Birmingham, US
★★★★★ 5
Stays strong with hot or cold food!
Size: 18oz brown
Love these bowls! No extra curl on the lip which makes it easier to drink the leftover milk after eating all the cereal, lol!
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Reviewed in the United States on April 17, 2026
A
Verified Purchase
Anthony Miller
Birmingham, US
★★★★★ 5
Sturdy for chili!
Size: 18oz brown
Great bowls, used for a chili party. Held up great!
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Reviewed in the United States on January 21, 2026

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