Features and Benefits- Compatible with all types of anti-freeze.
- One-step repair; pour-and-go formula requires no system draining.
- Designed not to clog cooling system components.
Applications- Aluminum engine blocks
- Cooling systems
- Cylinder heads
- Engine blocks
- Freeze plugs
- Head gaskets
- Heater cores
- Iron engine blocks
- Metal radiators
- Plastic radiators
- Radiators
- Water pumps
Product DescriptionK&W® Instant Cooling System Stop Leak is a pour-in sealer formulated to provide a fast and lasting repair for cooling system leaks, including head gasket leaks. The product is suitable for do-it-yourself and workshop use and is engineered to cure quickly and seal cracks and crevices that other products may not reach.
More InformationPermanent SolutionThe formula fills small cracks and crevices to deliver a durable seal for head gasket and other cooling system leaks. It is intended to provide a lasting repair when used according to instructions.
Easy Pour-and-Go FormulaDesigned for straightforward application without draining the cooling system. Ensure sufficient space in the cooling system, then pour in the sealant. Follow the recommended procedure to achieve an effective repair.
Fast CuringAfter application, allow the vehicle to idle for 15–30 minutes with fan and heater on high to accelerate curing. The sealant sets quickly so the vehicle can return to service with minimized downtime.
Product ResourcesPart #: 1008134
Item #: 401214
Case #: 1006062
Container: 16 Ounce Bottle
Units Per Case: 6
Status: Active
Product Data Sheet: available for this 15 fl oz configuration
Safety Data Sheets: English and Spanish available
Technical specifications- Evaporation rate: Slow
- Flammability class - CPSC: None
- Flash point (C): None
- Flash point (F): None
- Net fill: 15 fl oz
- Plastic safe: Yes
- Appearance: Tan liquid
- Case #: 1006062
- Cases per pallet: 180
- Curing time: 24 hours
- DOT proper shipping name: NOT REGULATED
- Generic description: Permanent cooling system repair
- I 2 of 5 code: 60078372012145
- pH: 11.3
- Product lifecycle status: ACTIVE
- Item number: 401214
- Propellant: None
- Removal (how to): Remove with water.
- Unit dimensions: 7.75H x 1.75W x 3.12D in
- Unit package description: 16 Ounce Bottle
- Units per case: 6
- UPC code: 078372012143
- VOC category: Not Regulated
- VOC g/L (Consumer Product def): 1.08
- VOC % (Consumer Product def): 0.1
- Working temp (C): 88°C
- Working temp (F): 190°F