Rislone® Powder Radiator Stop Leak Makes it Easy to Protect Cooling Systems!

Rislone® introduces a powder version of its popular Radiator Stop Leak. This new product uses the same active ingredients as Rislone Liquid Radiator Stop Leak but the powder comes in a small, easy-to-use tube.
Like its liquid counterpart, Rislone Powder Radiator Stop Leak (p/n 31170) is designed to permanently seal leaks in plastic, aluminum and metal radiators, heater cores, blocks, heads, gaskets and freeze plugs, including internal, external and coolant-to-oil leaks. These tiny particles will not clog heater cores. In fact, the Big Three car manufacturers mandate that any product installed in a vehicle’s cooling system must pass through a 24 gauge mesh screen. Rislone products are the one of the few stop leaks to pass this test and to be approved by the OEMs. Read More.....

Media Page!

Check out our new media page which contains links to articles written on our products.

See more...

Testimonials

“After accumulating close to 80,000 miles on the present rebuilt V-8, it started to act its age, continuing to foul several plugs and running sluggish. I added Rislone to the engine and always added 1 quart of Rislone each oil change. That was close to 50,000 miles ago and the engine has simply been given a second life!"

Read more...

New for 2010
High Performance Oil Treatment!!

Tech Sheets

For in depth information regarding our products, please take a look at our tech sheets. All sheets have great information including lab testing and directions for application.

More info...