High-tack cement

Cements of High Tack. Cements of high tack can be produced by formulating the material to include tackifying and plasticizing agents combined with large amounts of zinc oxide. Table 11 contains an illustrative example of such a formulation. A liquid nitrile such as Hycar 1312 may also be used to enhance tack. 

Plasticizers. Softeners are sometimes employed with nitrile rubbers to improve tack and adhesive properties. They are added to high nitrile content rubbers to aid processability. Conunonly employed in cement applications are esters (e.g., dibutyl phthalate, dioctyl phthalate, tricresyl phosphate, tributoxy ethyl phosphate, dibenzyl sebacate), ester gums. 

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