Cafco FENDOLITE MII is a spray applied , single package controiied premix , based on vermiculite and Portland cement . It may be floated finished . Cafco FENDOLITE MII produces a monolithic coating able to withstand thermal shocks experienced typically in high intensity hydrocarbon fire . Concerete structures in particular , will be protected from explosive spalling when protected using Cafco FENDOLITE MII . Although low in density , thus significantly reducting dead load , Cafoco FENDOLITE MII is highly durable and will not crack or spall under mechanical impact . Cafco FENDOLITE MII is used for application to construction elements such as concrete or individual steel sections , particularly where off-site application is required . It is suitable for exterior use on structures and vessels in the oil , gas , petrochemical and power industries , and for refurbishment or upgrading of existing tunnel structures .