the use of a dry liquid concentrate mixture is disclosed comprising crumb rubber particles and tall oil , tall oil derivatives or other fatty acids , which may be enhanced by other components , such as modifiers , for use to enhance the properties of parent materials , such as thermoplastic compounding and coatings and elastomers and recycles and asphalt and epoxies and aliphatic urethane using preexisting equipment and preblending processes for the additives and modifiers .