Description
A true 100% two-part epoxy — not water-based. Tenax Fixtop Knife Grade Epoxy is a professional-grade epoxy adhesive formulated for bonding, laminating, and setting stone, ceramic, porcelain, metal, and composite panels in both interior and exterior applications. Unlike polyester mastics, Fixtop does not dissolve or break down in water, making it the correct choice for shower surrounds, wet areas, and outdoor installations where moisture resistance is non-negotiable.
Easy to mix and spread, Fixtop works best applied in a thin layer and delivers a strong, permanent bond with no issues from expansion or contraction. Available as a quart kit (Part A + B combined), or in gallon and 5-gallon sizes sold as Part A and Part B separately.
Key Features
- True 100% two-part epoxy — not water-based; permanent, waterproof bond
- Shower & wet area safe — will not dissolve, delaminate, or break down in water
- Indoor & outdoor use — no issues with expansion or contraction
- Broad substrate compatibility — stone, marble, granite, mosaics, porcelain, ceramic, hardwood, cement board, laminate, plywood, metal, honeycomb panels
- Works best in thin layers — easy to mix and spread; clean tools with acetone or butyl acetate
- 2-year shelf life — stored between 65°F–77°F, away from heat and direct sunlight
Ideal Applications
- Stone to stone bonding and lamination
- Metal to stone and concrete to metal
- Ceramic or porcelain to stone
- Stone to honeycomb panel systems
- Shower surrounds and wet area installations
- Mosaic setting on interior and exterior surfaces
- Outdoor stone and tile installations
Variant Guide
- 1 Quart Kit — Part A and Part B combined; ready to mix, ideal for smaller jobs and repairs
- 1 Gallon Part A / Part B — sold separately for high-volume shop use; order equal quantities of each
- 5 Gallon Part A / Part B — bulk sizing for production fabrication shops
How to Use
- Ensure surfaces are completely dry and clean before application
- Measure Part A and Part B in correct ratio by weight or volume (refer to technical data sheet)
- Mix thoroughly with clean plastic tools — avoid copper, brass, or similar metals
- Apply in a thin, even layer; bond surfaces immediately
- Clean tools with acetone or butyl acetate before epoxy cures
- Keep containers closed after use; 2-year shelf life at 65°F–77°F
Works Well With
- Tenax Colored Knife Grade Polyester — polyester alternative for interior-only dry area repairs
- Tenax Tixo Xe Transparent Knife Grade — transparent polyester for light-veined stone repairs
- Tenax Mixing Cups 12oz (50/Sleeve) — disposable cups for measuring and mixing epoxy components
- Tenax #9 Razor Blade — for trimming cured adhesive flush
- Tenax Ceramic Razor Blades — for trimming on ceramic and porcelain surfaces