Micromatic and MicromaticHP standard response pendent sprinklers are small, thermosensitive, glass-bulb spray sprinklers available in several different finishes, temperature ratings and K-Factors to meet design requirements. Their special polyester and Teflon coatings can be used in decorative applications where colors are desired. In addition, these coatings have been investigated for installation in corrosive atmospheres and are cULus listed as corrosion resistant. Wax-coated models are for severe corrosive environments. Stainless steel units are available in upright or pendent models.