StarQuartz, StarGlass Urethane Grout
Pre-mixed, self-sealing, translucent grout for glass and metal tile
StarGlass Grout combines a round glass bead aggregate with the same urethane grout technology used in QuartzLock Grout, resulting in a truly unique product that enlivens any glass or metal tile. StarGlass actually allows light to pass through the grout itself to provide a three-dimensional, reflective, translucent feeling.
It has all the benefits of a urethane-based grout. Unlike epoxy grout, it's easy to apply and clean up; and unlike a pigment-based grout, it has no risk of incorrect mixing. Best of all, this grout never has to be sealed!
StarGlass comes as a bucket of pre-mixed, ready-to-use grout. Use it with ceramic, porcelain, natural stone tile, and especially with glass and metal tiles. It cures to a hard, self-sealed, semi-elastic finish that is color fast, resistant to chemicals, stains and mildew, and won't shrink or crack. StarGlass won't sag in vertical applications and won't dust. In addition, it's UV-stable, non-allergenic and it stores for months in the bucket.
Why we like it
Finally, a beautiful non-toxic grout made for glass tile that never requires sealing. It has all the advantages of epoxy grout, but is much easier to use and produces more attractive results. Prices are about the same.
Features & benefits
- High-performance — semi-flexible, non-sag, UV-stable, highly crack-resistant and low-shrinkage
- Fast installation — installs up to 50% faster than other grouts
- Superior, durable finish — color-fast, self-sealing and stain-resistant
- Long open time — 4 hours; won't set before you're finished
- Easy-to-use — DIY; pre-mixed; water cleanup
- Aesthetically pleasing — three-dimensional, reflective and translucent
- Great colors — 15 stunning colors; consistent batch to batch
- Non-toxic — no BPA as found in epoxy grouts; low-odor
- Safe — for everyone, including the chemically sensitive; learn how to test a non-toxic product for tolerance
- Eco-friendly — low VOC; more than 80% recycled content
Alert: Quartz-Lock grout, as delivered, is an encapsulated product in which the sand component (crystalline silica) is bound in
a polymer matrix. The sand contained in this product cannot be inhaled under conditions of intended product use
This item description was written by Joel Hirshberg
Read and understand Technical Data Sheet and Material Safety Data Sheet completely before beginning installation. Follow applicable ANSI, TCNA and NTCA installation standards. Always do a test area to ensure product satisfaction, including adhesion to substrate, and/or to become familiar with proper application techniques prior to use.
StarGlass Grout requires different installation techniques for successful product use. Please read the following instructions carefully.
Preparation for Grouting
• DO NOT add any water, liquid, or other material to QuartzLock Grout! This will cause grout failure and void all warranties.
• A milky, white liquid may be present on the surface of the grout when opened. This is from normal settling during shipment. Only use a margin trowel to bring grout into suspension. Use of a drill mixer is not recommended as it will introduce excessive air into the product and cause grout sagging on vertical applications, a reduction of color uniformity, and/or other performance issues. Continue to mix with margin trowel throughout the grouting process.
• Ensure tile is firmly set and mortar is completely dry (always follow manufacturer's instructions) before grouting. Remove all spacers, water, debris and adhesive from tile joints.
• For best results, surface of tile should be at room temperature (70°F to 75°F). Urethane materials are affected by temperature and humidity variations. Cool temperatures and/or high humidity will slow cure time.
• To facilitate cleaning, pre-seal all porous tile and natural stone before grouting.
• For glass tile, polished marble, stone and other soft surfaces, test grout on a small area to ensure compatibility.
• Make sure grout joints are clean, dry, and free from solvents and residue before grouting.
• Spread grout using a stone float. Work the grout diagonally across the joints, packing them full.
• Remove excess grout from the tile surface, pulling the edge of the float diagonally across the joint to prevent grout removal.
For best results, remove grout haze AS YOU WORK, particularly in warm or dry climates. If working alone, only grout as far as you can reach (arm's length) before initial cleaning. If working as a team, one person should grout, with the other(s) cleaning immediately behind the first person.
• Rinse sponge in water and wring out completely. Since urethane grout requires very little water during cleanup, make sure that the sponge is wrung nearly dry. Wipe lightly, leaving sponge flat on the tile surface to prevent grout removal from joints. Excessive water during cleanup can dilute the urethane binder and cause curing issues that may lead to grout failure.
• Wipe up spilled water immediately. Do not allow water to sit on grout surface or in ungrouted joints.
• Change water mixture after each 100 square feet, for each new bucket of grout, or when dirty.
• Check work as you clean. Repair any low spots with additional grout. Unlike other grouts, DO NOT over wash.
• Allow cleaned areas to dry, and then inspect tile / stone surface. If a second cleaning is necessary, WAIT 3 hours in low humidity environments and 6 hours in high humidity environments, making sure grout is cured enough to withstand light finger pressure without losing form, then spray BLAZET Urethane Grout Cleaner on a white scrubby DoodlebugT cleaning pad (do not flood the surface with cleaner). Rub the cleaning pad lightly over any remaining urethane haze, allow it to dwell on the tile / stone surface for at least 60 seconds (excessive haze may require direct spray on surface and/or more dwell time) to ensure sufficient penetration. Use a damp sponge and clean water to remove the film and cleaner. Finish by drying the tile surface with a clean towel or cloth. Contact StarQuartz if a persistent haze exists.
• Ensure that joints are well packed. Smaller joints may require extra effort. Failure to fully pack joints may lead to slight discoloration or mottling and delay full color consistency for up to two weeks.
• To speed up installation, or for quarry and other porous tile and/or outdoor applications, pre-wet tile surface using clean water with a damp sponge prior to spreading grout, being careful not to leave standing water in the grout joints.
• Maintain temperature above 40°F (5°C) during installation and curing.
• Protect finished surface from light traffic for at least 24 hours at 70°F (21°C). Heavy foot traffic requires 72 hours at 70°F and 50% relative humidity. See Limitations/Cautions below for further curing requirements.
• If needed, cover ONLY with kraft or breathable paper after initial 24-hour curing period.
• Full cure depends on grout depth. Normal cure of a ¼” grout joint with a 3/8” thick tile is 28 days.
Showers/Steam Showers/Wet Applications
• Use an approved waterproof sealer for mud bed applications and follow manufacturer’s recommendations for sealer installation. For liquid-applied waterproofing materials, apply to within 1” of any drains to prevent weep hole blockage. The use of pre-sloped, waterproof trays (instead of mud beds) is highly recommended.
• Shower, steam shower, pool, fountain and wet area installations must be protected from moisture and allowed to cure for 7 days before use.
• Do not apply or clean up this product like traditional cement-based or epoxy grouts; StarGlass Grout is a new technology that requires a simpler and easier application and clean-up process.
• Follow all manufacturers’ instructions for all other setting materials, waterproofing, anti-fracture membranes, etc. to be used on the job.
• Minimum recommended grout joint width is 1/16".
• Maximum recommended grout joint width is 1/2” for horizontal and 1/4" for vertical applications.
• Ensure that grout joints are fully packed, especially in tight and irregular joints. Take special care in all wet and outdoor applications.
• Do not use as a setting mortar.
• Not for use in heavy industrial applications (i.e. chemical plants), in areas subjected to harsh or persistent chemicals, or areas exposed to very aggressive cleaning routines such as steam or pressure washing.
• StarGlass Grout is not a replacement for a waterproofing membrane. When a waterproofing system solution is required, please contact StarQuartz Technical Service.
• Protect grout from staining agents and chemicals during the cure process.
• Grouting when tile surface is above 90°F (32°C) is not recommended. Cool tile surface with damp sponge if tile surface is above 90°F (32°C). Be careful not to add excessive water during the tile cooling process.
• Do not use vinegar or acid solutions for clean-up; this could damage uncured grout.
• Always use protective clothing (gloves and eye protection) when working with grout.
• Prior to regrouting applications, remove 1/8” of old grout and any surface contaminants. Be sure to rinse any residual solvent/cleaner off grout joints, then allow joints to completely dry before re-grouting.
• Do not use for commercial or wet environment re-grouting installations, including showers, steam showers, and outdoor applications.
• Seal porous tile and stone surfaces with a water-based sealer, including the sides of the tile and stone, prior to grouting with StarGlass Grout.
• Outdoor installations must be protected from moisture (rain) for 7 days. If rain is forecast within 7 days, protect by tenting the grouted area (at least 1 foot above surface).
• Not for use in hot tubs.
• Wait 7 days before rigorously cleaning tile and grout surface.
• Wait 7 days prior to exposing grout to full submersion.
• Use care on soft, highly polished surfaces to avoid scratching. Test a small area.
Use of a sealer is always recommended on polished marble, stone, slate and other natural, porous tiles.
• Use of enzymatic floor cleaners will void all warranties.
• Do not ingest. Keep out of the reach of children.
• Do not use StarCure® Urethane Grout Cure Accelerator with StarGlass Grout.
• Do not use solvent-based adhesives or sealers with StarGlass Grout.
• Protect grout from freezing. Do not grout outdoors or in unheated areas when temperatures are expected to be below 40°F (5°C) within 3 days. If product freezes, return to room temperature and use as directed.
• For Chemical Emergency, call CHEMTREC 24 hours, (800) 424-9300 in North America, (703) 527-3887 International (collect).
• For more information, consult the MSDS for this product.
Availability and Cost
StarGlass Grout is available at authorized resellers throughout the U.S. and Canada. Contact StarQuartz Industries, Inc. at (866) 220-4500 or info@StarQuartz.com for more information.
StarGlass Grout requires occasional cleaning with water and common grout cleaners. For best stain resistance, always clean up spills immediately.
StarGlass Grout is guaranteed to remain suitable for use up to a period of two (2) years if stored unopened at temperatures between 32°F (0°C) and 100°F (38°C). After opening, StarGlass Grout 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.
Available in 9 lb. and 18 lb. units
Click here to see our complete warranty.
StarGlass Grout is a revolutionary new technology which employs state-of-the-art urethane chemistry. As yet, there is no current ANSI or ASTM standard for this technology (ANSI 118.3 pertains only to epoxy grout products); however, for comparative purposes, physical and chemical properties are listed below. Epoxy grouts are hard, brittle and lack flexibility. StarGlass Grout is designed to have the perfect balance of physical properties in order to provide flexibility, strength and adhesion to a variety of materials, making it the best choice for a wide variety of applications. Specifications are subject to change without notice
Water Cleanability Pass
Initial Set >2 hrs
Service Strength Pass
Vertical Joint Sag Pass
ASTM C267 Chemical Pass
Compressive Strength >3,500 psi
Linear Shrinkage 0.25%
Water Absorption <1%
Color 15 available
*Results shown are typical and reflect test procedures used by the Tile Council of North America (TCNA) for ANSI 118.3 and 118.3 modified. Actual field performance will depend on installation methods, site conditions and other environmental factors.
|Interior or Exterior||Exterior, Interior|
|Use On Material||Tile: Natural Stone, tile - ceramic, Tile: Porcelain, Tile, Tile: Glass|
|Eco-replacement for||Epoxy Grout|
|Chemically-sensitive safe||Yes learn how to test a non-toxic product for tolerance|
|Test before use||Yes, test on inconspicuous area|
|Coverage||Depends on tile size and joint width - dowload chart|
|Square Feet / Box|| Square Feet|
|Boxes / Pallet|| Boxes|
|Square Feet / Pallet|| Square Feet|
|Boards / Box|| Boards|
|Pieces / Box|| Pieces|
|Weight / Box|| Pounds|
|Thickness or Height||"|
|Veneer Cut Thickness|
|Use With These Prodcuts|
|Number of Colors|| Colors|
|Critical Radiant Flux|
|Face or Pile Weight|
|Pile Height (High)|
|Pile Height (Low)|
|Resistance to Insect Pests|
|Roll Length|| '|
|Stitches Per Inch|
|Surface Texture, Construction, Style|
|Tufts per Sq. In.|| Tufts / Sq In|
|Bundles per Pallet|| Bundles|
|Bundles per Square 6" Exposure|| Bundles|
|Bundles per Square 7" Exposure|| Bundles|
|Bundles per Square 7-1/2" Exposure|| Bundles|
|Bundles per Square 8" Exposure|| Bundles|
|Pounds per Bundle|| Pounds|
|Pounds per Pallet|| Pounds|
|Pounds per Roll|| Pounds|
|Pounds per Square|| Pounds|
|Pounds per Square 6" Exposure|| Pounds|
|Pounds per Square 7" Exposure|| Pounds|
|Pounds per Square 7-1/2" Exposure|| Pounds|
|Pounds per Square 8" Exposure|| Pounds|
|Lin Feet per Bundle|| Lin Feet|
|Lin Feet per Pallet|| Lin Feet|
|Rolls per Pallet|| Rolls|
|Squares per Roll|| Squares|
|Tiles per bundle|| Tiles|
|Tiles per Lin Foot|| Tiles|
|Ingredients||download Material Safety Data Sheet (MSDS)|
|VOC Content||Zero VOC Grams/Liter|
|Use On Material - Condition||Tile: Natural Stone, tile - ceramic, Tile: Porcelain, Tile, Tile: Glass|
|Use On Instructions|
|Application Method||float, sponge, trowel|
|Application Temperature Range||warmer than 55 ° f|
|Application Instructions||see pdf|
|Surface or Product Preperation||Surface should be clean, dry and oil free|
|Recommended # of Coats||1|
|Re-coat After||as needed|
|Drying Time||open time 4 hours, tack free in 8 hours, foot traffic in 24-48 hours, fully cures in 72 hours. Use accelerator in wet or dry applications to speed up cure time|
|Appearance When Dry||satin finish|
|Cleans Up With||neutral cleaners, Water|
|Storage||Store in cool dry place out of sunlight|
|Recycling or Disposal||dispose of excess product in accordance with all local, state and federal regulations., do not through out containers unless completely empty. spread out contents onto dry cardboard or newspaper and thoroughly dry outdoors. you may also absorb with cat litter, sand or other dry material|
|Floor Item Type|
|Janka Hardness Rating|
|Number of Plys|| -Plys|
|Range of Resistance|
|Risk in Dry Climates|
|Shade (1 Light) - (7 Dark)|
|Strips / Plank|| -Strips/Plank|
|Surface Treatment Color|
|Touch Up Kit|
|Can be indoor?|
|Can be outdoor?|
|Max Gallons Per Minute|| - GPM|
|Max BTU's / Hour|| - BTU's / Hour|
|Multi Control Capabilities|
|Temperature Range (with remote)|
|Residential Finish Wear|
|Commercial Finish Wear|
|Forest Stewardship Council (FSC)|
|FSC Chain-of-Custody #|
|LEED® Qualifications||Indoor Environmental Quality/4.1 Low-Emitting Materials/Adhesives and Sealants: 1 point, Materials & Resources/5 Regional Materials: 1 to 2 points, Materials & Resources/4 Recycled Content: 1 to 2 points, Indoor Environmental Quality/5 Indoor Chemical and Pollutant Source Control: 1 point, Indoor Environmental Quality/4.2 Low-Emitting Material/ Paints and Coatings: 1 point|
|LEED® Regional Materials Zip Code|
StarQuartz, StarGlass Urethane Grout
Beautiful non-toxic translucent grout for glass and metal tile that's water-proof, stain-proof and crack-resistant
StarQuartz, StarGlass Urethane Grout
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