Extended working time for complex countertop installations. Tenax FixTop FixDeck is a slow-curing two-part epoxy thinset engineered for bonding stone, ceramic, and porcelain to plywood substrates — particularly countertop installations where the additional open time is needed to position large slabs, adjust alignment, or work through complex layouts before the adhesive sets. FixDeck delivers the same structural bond strength as standard Fixtop but with a longer working window, giving installers the time needed to get the job right. Smooth, trowel-friendly consistency for easy application and full coverage. Once cured, the bond is strong yet slightly flexible — resistant to water and suitable for both indoor and outdoor applications including shower surrounds. Key Features Slow-curing formula — extended open time for complex or large-format installations Engineered for countertop installation over plywood substrates Smooth, trowel-friendly consistency for easy application and full coverage Strong yet slightly flexible bond — resists cracking under substrate movement Water-resistant — suitable for wet areas including showers Indoor and outdoor use Suitable for mosaics, natural stone, ceramic, and porcelain FixDeck vs. Standard Fixtop — Which to Choose FixTop FixDeck (this product) — slow cure; use when you need extended working time for large slabs, complex layouts, or precise positioning Tenax Fixtop Knife Grade Epoxy — standard cure; use for faster-paced installations where extended open time is not required Compatible Materials Granite, marble, quartzite, travertine, and all natural stone Engineered quartz and engineered stone Ceramic and porcelain Mosaics Substrates: plywood, concrete backer board, and similar surfaces How to Use Ensure the substrate is clean, dry, structurally sound, and free of dust and oils Mix Parts A and B per the technical data sheet ratio; stir thoroughly with clean tools Apply with a trowel to the substrate; comb to ensure full coverage Set stone into adhesive and adjust position within the open time window Do not return mixed adhesive to the original container Allow to fully cure before grouting or applying load Seal containers tightly after use; store between 65°F–77°F away from heat and sunlight Works Well With Tenax Fixtop Knife Grade Epoxy — standard cure version for faster installations RTV Silicone Sealant — for perimeter sealing and expansion joints after installation Tenax T Tape Miter Tape — for masking edges and protecting surfaces during installation Tenax Mixing Cups 12oz — disposable cups for measuring and mixing ProToolHaus – Your Certified Tenax USA Distributor When you buy from ProToolHaus, you’re ordering from a certified distributor of Tenax USA. We carry the full lineup and stand behind every product with expert guidance, fast fulfillment, and the kind of support that only comes from working in the stone industry every day.
