• All substrates must be structurally sound, dry, solid, and stable. The surface shall be clean of dirt, oil, and grease and free of loose impediments. Power wash with water solely and no chemical additives is recommended.
• The surface may be damp (NOT WET). However any running water must be sealed or contained through relief pipes that are commonly used in grouting work.
• Mechanically clean the area to be sealed (use stiff wire brush or equivalent)
• Complete structural repairs to subtrate prior to application of the Rubberseal Roll-On or Trowel.
• When applying over existing installations of Rubberseal Spray Grade, thoroughly wash the area of application with fresh water, and wipe dry before applying the material.