Polyplast PTFE cloth spray shields are manufactured from single and multi layered clear cloth for ease of visibility, or from a colored cloth with a leak indicating patch. Weep holes located behind the senstitive pH indicating patch allow the indicator to immediately signal a leak and will change color to red in the presence of an acid, or green if an alkali, The pH patch is also replaceable which allows reuse of the shield.Poly Plast Spray shields are UV stabilized and resistant to sun, rain and fumes and may be used indoors or outdoors. Our shields are quickly and reasily installed by one person without any tools by means of hook and loop fastener and drawstrings.