FC645 Solvent Natural Stone Color Enhancer Sealer – High Gloss

FC645 Solvent Natural Stone Color Enhancer Sealer is a Solvent-based acrylic sealer formulated to protect and embellish natural stone surfaces.

Recommended Surfaces

  • Marble and calcareous stones
  • Slates
  • Ceramic & porcelain tiles
  • Grout joints
  • Floors, walls, showers and counters
  • Residential, commercial and institutional applications
  • Interior use


  • Enhance colors with a glossy finish
  • Dries quickly
  • Enhances natural stone colors
  • Protects against household dirt and stains
  • Provides a water repellent and oil repellent protection


  • 946ml covers approximately 20m² (200ft²)

Environmental Data

  • VOC: 85gr / 100ml


  • Solvent Based Sealer Remover


Commercial & Institutional

  • Neutral Floor Cleaner (FC300)


  • Vinyl, Tile & Stone Cleaner (FC110)

FC645 Solvent Natural Stone Color Enhancer Sealer – High Gloss Directions

Surface Preparation

First deep clean or remove any existing topical water-based sealer using Heavy Duty Cleaner (FC350). Allow the surface to dry before applying the sealer.


With a paintbrush, paint roller or the FCS Mop (FC230) with the Application Mop Cloth (FC225) for smooth or semi-smooth surfaces, apply a thin coat so sealer. Then spread the sealer slowly to avoid any of air bubbles. Allow the surface to dry completely (4-6 hours) before applying a second coat if needed.

Application on Vertical Surfaces: Make sure there is no accumulation of sealer in the joints or on the top edge of the tiles to avoid streaks or white residue.

Caution & Limitations

  • Test product on a small inconspicuous area
  • While applying the product protect adjacent areas against unexpected contact with the product
  • The product should be used at room temperature
  • Do not apply over epoxy grout.
  • Regular reapplication schedule may be required on heavily used and high traffic areas

Cure Time

  • Normal foot traffic 24 hours
  • Maximum cure time 28 day