List of featured suppliers of PRIMERS: TYPES Stain Blocking on Building Products Index
Primers are a type of coating applied to surfaces before painting or other decorative finishes. There are various types of primers, including ones that are specifically designed to block stains from bleeding through the finished coat. These stain-blocking primers are particularly useful in situations where previous paint or construction materials have been damaged by water, smoke or other types of stains, as they prevent these marks from showing through the new coat.