Virobond 515 should not be applied if the ambient temperature is below 5 degrees Celsius or if the surface temperature is below 10 degrees Celsius or above 30 degrees Celsius.


  • Do not apply Virobond 515 “Top Layer Seal” to glass, glazed surfaces, or aluminium, as etching will occur. In case of accidental contact, rinse thoroughly and immediately with water.

  • Virobond 515 is best applied to completely dry and cool surfaces.
  • Virobond 515 is not meant to fill or seal visible cracks.
  • Mortar joints between brick, stone or other material to be treated with Virobond 515 in order to ensure moisture and salts do not come up through the mortar. (Refer the Virobond 505 Specification sheet for applications to cementitious, alkaline substrate).

  • For surfaces not specified in our literature or if you are uncertain as to previous chemical treatments, we recommend that Virobond 515 be applied to a small test area first.

Do not hesitate to contact your Virobond 505 supplier representative if further assistance is required prior to application.