No‐Burn® Plus ThB WhiteNoBurn Plus ThB White an intumescent coating that when exposed to high temperatures and flames can provide a barrier to protect the treated substrates. VISIT TRAILSPRAYER. COM FOR A COMPLETE LIST OF EQUIPMENT RECOMMENDATIONS Primary Uses: For new and existing buildings, complying with the IBS, IMC, IRC, IEBC and other applicable codes or standards. Utilized in applications where it provides: Interior Finish Classification Class I or Class A: FS 0 SD