NALCOOL 2000 Automobile Coolant Corrosion Inhibitor - ChemEqual

NALCOOL 2000: Automobile Coolant Corrosion Inhibitor
Corrosion and scaling in
automobile cooling systems is
primarily by chemical reaction of
oxidizing agents in the coolant on
the metal components. The type
and nature of materials present at
heat exchanging surfaces, the
temperature of the system, pH and
type of corrosive elements present
in the coolant determine the type of
inhibitor package needed.
Conventional water based coolants
constantly need additives in the
form of mineral inhibitors such as
phosphates, nitrites and borates for poplar heat exchange surface metals like aluminium, copper etc along with
other parts made from cast iron & mild steel. Absence of suitable inhibitors can cause corrosion, metal
cavitation, scaling and cause leaks by destruction on rubber gaskets and head caps. Liquid coolant additives
serve ideally as easy to use blends that can be directly mixed with coolant water for easy and quick
anticorrosive action on coils, coolant pump and radiator fins.
Corrosion inhibitors are generally blends of chemicals added to the coolant water to reduce material loss and
system damage due to oxidation. The prerequisite is a passivation agent to coat the metal surfaces preventing
further corrosion followed by neutralization of oxidizing ions in the coolant thus reducing cavitation. Best
corrosion inhibitors need to be fast acting and thermally stable so as to operate at high temperatures and high
coolant flow rate. Nitrite, Borate, Silicate and Polyacrylate formulations seem to be the most popular as
corrosion and rust inhibitors. This is due to the fact that they are able to remove most oxidizing agents in
common coolants while passivating metal surfaces for a long lasting corrosion control. The only requirement is
to keep a steady inhibitor concentration in the system.
NALCOOL 2000 manufactured by Nalco Company is a synergized inhibitor blend for metal passivation and
sale suppression as a water soluble corrosion inhibitor. It has been designed for all common engine cooling
systems and is ideal to protect ferrous metals, copper & its alloys, aluminium etc. as well as rubber gaskets and
non-metallic components within the cooling system. NALCOOL 2000 is available in liquid form making it easy
to use and apply, fully compatible with water and ethylene glycol based coolants. It does not contain chromates
and has been tested internationally to maintain a high degree of heat transfer efficiency & long engine life.
Outstanding features of the product include:
Protection of all common cooling system metals
Cavitation protection
Minimized sludge and scale formation
Liquid, safe & easy to apply formulation
Compatible with wide range of coolants and dyes
Approved by all leading automobile engine manufacturers
NALCOOL 2000 is the perfect corrosion & scale inhibitor for coolants in small auxiliary diesel engines
containing aluminium components.

ChemEqual is a vast online specialty chemical database and NALCOOL 2000 as well as equivalent
compositions of coolant corrosion inhibitors can be searched here from among a wide range of global suppliers.