Silicone Alkyd Coating
Definition - What does Silicone Alkyd Coating mean?
A silicone alkyd coating is a special type of coating in which alkyd resins are modified by adding silicone.
When silica is added to alkyd resins, the product formed is a specialized series of products that can be further used to formulate coatings. Such coatings have excellent durability, toughness, good resistance to cracking and abrasion resistance caused by severe temperature changes. These silicon alkyd resins are used in maintenance paints for steel and concrete, used to provide high quality maintenance finishes, exterior decorative, marine paints, coatings on brass and aluminum, and heat-resistant paints.
Silicone alkyd coatings are also known as silicone modified alkyd resins.
Corrosionpedia explains Silicone Alkyd Coating
When silicone is added to an alkyd resin coating, a unique combination of coating properties are imparted into the alkyd resin coating that make this coating (silicone modified alkyd resin) a preferred choice to protect and preserve expensive industrial structures from harsh corrosive environments.
Silicone or silica is considered to be a great binder that bonds tightly with substrate material. Silicone alkyd resins act as binders or co-binders in the coating, thereby imparting important benefits such as durability throughout the life of the coating. It also offers resistance to weathering for exterior surfaces such as bridges and metal cladding on buildings. It repels water on masonry surfaces such as stone and brick.
Silicone alkyd resins have greater resistance to high temperatures than organic resins and are used in paints for ovens, chimneys, car exhaust systems and barbecues.