How long do paint sealants last?
Contrary to claims of up to three to five years, research shows that no sealant will provide both shine and protection for more than six months.
What exactly is a paint sealant? The answer to this question depends on whom you ask. However, it is defined as an amino-functional silicone-based product used to seal the surface. Silicones are any of a large class of polymers, which consist of a high molecular mass. An amino functional silicone is a product that plates a surface after it is exposed to air. They are far more durable than a wax, providing a high shine and more resistance to repeated washings.