Multi-purpose protectant compositions and methods of manufacture and application thereof. The multipurpose protectant compositions comprise a mixture of an aqueous solution of an organosilane. The solution may also contain surfactants and fragrance from natural and artificial sources. The multi-purpose protectant scompositiona are sprayed on any surface, allowed to cure, and result in long-lasting surface protection. The protectant compositions have a long shelf life and resistance to thermal degradation.