What is a notable physical property of a treated surface with inorganic arsenicals?

A notable physical property of a treated surface with inorganic arsenicals is that these surfaces can indeed be painted. This is significant because many types of wood treatments used to protect against pests and decay do not hinder the ability to apply a finish. In fact, painting or staining treated wood can enhance its aesthetic appeal while also providing an additional barrier against moisture and UV damage, further extending the lifespan of the wood.

It's important to note that specific preparation may be required to ensure proper adhesion of the paint or stain to the treated surface, as residues from the preservation chemicals might affect how well coatings adhere. The ability to paint treated wood allows homeowners and builders greater flexibility in design choices and maintenance.

Other options suggest restrictions or characteristics that do not accurately describe treated surfaces. For instance, the notion that treated surfaces cannot be painted or must remain uncoated does not align with best practices in wood treatment and finishing. Similarly, the idea that treated surfaces are transparent is misleading, as these treatments generally affect the color and opacity of the wood rather than making it transparent.