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 Jul 17 - Jul 22

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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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4.1 ★★★★★
Based on 21 reviews
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Joan Meisenhelter
Draper, US
★★★★★ 5
Perfect for travel!
Size: Small Size
Love these and perfect for my bar soap. European hotels love their body wash refillable bottles but I like my soap! This keeps my bar soap clean and prevents me from dropping on the hotel shower floor. Also makes it nice for packing as it takes up less room than a soap dish. Last a long time! Use this all the time on monthly trips and is just like new. Good buy!
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Reviewed in the United States on May 21, 2026
S
Verified Purchase
Sean George
Draper, US
★★★★★ 3
Great soap saver
Size: Small Size
The string came off the first day I used it. But other than that it’s great. Has a nice exfoliation to it. Not not very soft at all. But this will help your soap last you a little longer
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
J
Verified Purchase
J. Bublitz
Louisville, US
★★★★★ 5
New find for me and I love it
Size: Small Size
I guess I never realized what a soap bag was before. I put a small brick of soap in it and it is WONDERFUL for shaving my legs!! It suds up just enough so you can shave, but keeps the soap from getting messy.
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Reviewed in the United States on February 2, 2026
M
Verified Purchase
Michelle Ross
West Palm Beach, US
★★★★★ 5
Good soap bags
Size: Small Size
Great soap bar bag. Later is good, fit is big but that's fine way better than being too tight or small. Great value.
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Reviewed in the United States on April 26, 2026
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Verified Purchase
Gibson
Louisville, US
★★★★★ 5
Fantastic soap exoplanet bags
Size: Medium Size, Size: Medium Size
Very high quality bag. I was really surprised when it arrived and I saw how well it was made. I was expecting something cheap for the price. But the quality and durability of this soap bag far surpassed the price of the item. This will last for years. The material and stitching are top of the line. I can recommend this product for anyone.
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Reviewed in the United States on May 5, 2026

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