<p class="p1"><strong>PACTOProof W 410</strong> is an integral waterproofing and permeability reducing admixture for use in all types of mortar and concrete mixes. It is formulated from specially blended long chain carboxylic acids to give maximum reduction in permeability. This results from a positive chemical action which creates a network of insoluble water resistant material within the pores of the cement matrix.</p>