NOTE: You must have cookies enabled before purchasing products online.
Please enable cookies in your browser settings and refresh this page.

Account Login    


We want to hear from you!

If you have any comments or questions about our products, our website, or your order, please contact us.

Save 15% on orders of $100 or more!*

Enter code SAVE15 at checkout

*not including shipping

Engine Block Sealant

< Return to Product Listings
Envirosafe Engine Block Sealant Photo - Click to Enlarge


  MSDS Engine Block Sealant (193 KB, PDF)

Enviro-Safe Engine Block Sealant will repair most blown engine head gaskets and minor cracks in the engine block when used according to directions. Engine Block Sealant does not harm coolant systems or aluminum or steel engine parts and it will stop leaks in minutes. This 32 oz container is enough for 1 automobile or small truck diesel engine. 

For best results, add to radiator after mixing with anti-freeze.

For larger systems, please contact Enviro-Safe Technical Support at: 
1- 888-913-1110.

Terms & Conditions

Customers Also Bought:

ProSeal XL4

ProSeal XL4 - Click to Purchase

Designed for commercial systems as well as home A/C systems. *Home/Commercial/Larger A/C system use*

Price/Option: Quantity:

R12/22 Charging Hose w/Tap

R12/22 Charging Hose w/Tap - Click to Purchase

#3345 Great for use with Pro Seal!

Price: $7.00 Quantity:

Transmission Plus

Transmission Plus - Click to Purchase

Transmission Plus is a state-of-the-art conditioner and stop leak in one.

Price/Option: Quantity: