DIY Before the Holidays
DIY Before the Holidays
Flooring 101 Home Tile Flooring Grout Bostik NeverSeal Data Sheet

Bostik NeverSeal Data Sheet


NeverSeal? Commercial Grade Pre-Mixed Grout is a patented, ready-to-use, water-based, urethane grout for interior and exterior installation of ceramic, porcelain, glass and natural stone tiles on floors and walls with grout joint widths from 1/16" to 1/2". Designed for residential and commercial applications, NeverSeal offers lifetime stain resistance, superior crack protection and uniform color consistency. It contains built-in, urethane sealer technology so it never needs to be sealed and is ideal for use in heavy traffic areas as well as wet/submerged environments.

NeverSeal's quartz aggregate is color coated to ensure uniform color consistency every time; unlike other grouts that contain loose color pigments which can cause staining or be washed away during the initial mixing or clean-up steps.

NeverSeal contains Bostik's Blockade? antimicrobial protection, which inhibits the growth of bacteria, mold, or mildew on the surface of the dried grout and enables it to resist stains caused by mold.

NeverSeal is technology engineered to appeal to today's green-conscience marketplace, specifically those seeking to obtain U.S. Green Building Council LEED® certification for their projects. Its unique combination of features and benefits produces one-of-a-kind specification potential for architects and designers.

Product Benefits

  • No sealing required ever!
  • Consistent color every time - color is derived from colored quartz aggregate. No powdered pigment additives which can spot, streak or be washed away
  • No color fading, streaking or shading- even when wet!
  • Crack resistant flexibility
  • Pre-mixed and ready to use
  • Stain proof*
  • Fast, easy installation - installs up to 50% faster than other grouts
  • Excess product can be saved and used later (when stored properly in original container)
  • UV stable - Colors will not yellow or darken
  • Bostik's Blockade? antimicrobial protection
  • Dust-free mixing
  • 3-hour working time
  • Sanded grout appearance
  • Easy water clean up
  • Non-sag formula ideal for vertical surfaces
  • May contribute to USGBC LEED® Credits: MR 4.1 & 4.2 (Recycled Content), and EQ 4.1 (Low-Emitting Materials).
  • Will not exhibit efflorescence.
  • * With immediate cleaning and proper maintenance, Neverseal is resistant to staining when exposed to the most common household goods and cleaning agents. Long term exposure to any material can increase the potential for staining.

    Directions for Use

    Read and understand Technical Datasheet and Material Safety Datasheet completely before beginning installation. Always use protective clothing (gloves and eye protection) when working with grout. When installing your tile, follow applicable ANSI, TCNA and NTCA installation standards.


    Storage and Shelf Life

    NeverSeal Grout is guaranteed to remain suitable for use up to a period of two (2) years from date of manufacture if stored unopened at temperatures above 32°F/0°C - 100°F/ 38°C. After opening, NeverSeal can be saved for reuse if properly resealed in original container (always wipe the pail lip clean prior to resealing to ensure proper seal is achieved with the vapor lock lid). If product freezes, return to room temperature and use as directed.


    NeverSeal is available 12 designer colors in both 9 lb and 18 lb pails.


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    Flooring 101 Home Tile Flooring Grout Bostik NeverSeal Data Sheet