Foam in coolant is usually the sign of trapped air in the system, a leak on the suction side of the water pump, an improperly functioning water pump, low or no coolant in the coolant recovery tank, the lack of a coolant recovery system, the coolant system lack of appropriate SCA's or the combining of incompatible chemicals in the coolant system.

NO! Under most circumstances, Liquid Ice HP, HPX or VP Coolants will not build up foam in your coolant tank or Sump. Under high pressure (200 - 1000 PSI), aeration will cause it to look white instead of its normal clear, colorless appearance. This is perfectly normal, and the coolant will quickly revert back to the fully liquid state within a matter of seconds. See similar questions...

Engine coolant (antifreeze) has additives that help prevent rust corrosion, scale buildup, chemical breakdown, and the formation of acid, which all contribute to the likelihood of a cooling system failure. Like engine oil, these additives do wear out because of the higher Rpm's and operating temperatures of today's engines. It is critical that coolant be replaced before it turns acidic and destroys the cooling system it was meant to protect. See similar questions...

Coolant can seem to "disappear" from the system due to the lack of a coolant recovery system, evaporation, hose and clamp leakage or seepage, water pumps and/or thermostats not functioning properly, improperly sealed, cracked or broken head gaskets, cracked cylinder heads or engine blocks, and leaking or seeping radiators, heater cores or oil coolers. The consistent use of oil analysis can help pinpoint some of these problems and help avoid catastrophic failures. See similar questions...

All Memory Foam turns yellow with age. This is simply memory foam's way of oxidizing. (Like a penny gets darker with age.) This is completely natural and in no way detracts from the effectiveness of the memory foam material. Our Memory Foam products will never compress, and always retain. That's why we guarantee our memory foam products for up to 15 years. See similar questions...

There is closed cell foam in the area of the footwells and floor panels. It is there to take some weight out of the mat and provide more comfort under foot. The foam has very little acoustic properties. See similar questions...

In a clean, properly treated system, the additive physically coats the metal components and protects them from scale build up, corrosion and cavitation erosion (liner pitting). See similar questions...

Engine coolant is a generic term used to describe fluids that remove heat from an engine. Antifreeze is a more specific term used to describe products used to provide protection against freezing. Many people use these terms interchangeably, as we also do in this FAQ. Antifreeze (engine coolant) performs several functions in addition to providing freeze protection. Antifreeze contains chemicals that inhibit corrosion and scale formation in the engine and radiator. See similar questions...

Foam Sclerotherapy is the procedure by which a micro-foam of STS is injected into the veins. This requires the use of ultrasound to guide the injections when treating large veins. See similar questions...

Memory foam moulds itself to the contours of your body, giving a uniform level of support. It is a good compromise between the comfort of a soft mattress and the support of a hard mattress. Some people - such as myself - find it the best way to answer the question of how to get a good night's sleep. See similar questions...

Washable foam is a foam layer in the purification cycle that helps remove larger particles and is designed for easy cleaning. To clean the washable foam filter you just take it out of the unit and wash it with warm soapy water, rinse it with clean water and then hang it out to dry. You must make sure it is dry right through before placing it back in the air purifier unit. See similar questions...

Foam insulation is sprayed onto the the external fuel tanks in a gooey form and then becomes hard as a brick but light, like Styrofoam. It keeps the liquid hydrogen and the liquid oxygen fuel super cold. Shuttles ride these 15-story tanks during liftoff, then the tanks separate. NASA video showed that 81 seconds into the flight, a 20-inch, 2 1/2-pound piece of the foam fell off and struck Columbia's left wing. The shuttle Columbia was moving more than at twice the speed of sound. See similar questions...

The unique foam formation plays an important role in the mechanism of action of Patentex oval. The ovule melts at body temperature and thereby develops a microfine foam that is the carrier for the spermicidal active ingredient nonoxinol-9. The foam guarantees a fast spread within the vagina and uniformly covers the vaginal wall thus releasing the spermicidal active ingredient. See similar questions...

Some manufacturers will skip the full foam feature to reduce costs to their distributor. Polyurethane foam insulation is very expensive to a manufacturer but is a must in reducing heat loss and adding structural support to your hot tub. Remember, like any major purchase, you get what you pay for! See similar questions...