Description
The Tenax Epoxart Kit 2:1 is a very fluid, high-adhesion epoxy system engineered specifically for lamination, fiberglass netting, and colored materials. Its water-thin viscosity wets out mesh cleanly, flows into laminated buildups without starving the bond line, and cures clear and glossy. With about an hour of working time in the cup and polish-ready in 24 hours at shop temp, it's the middle-of-the-road timing option — more open time than the 4:1, faster than the 3:1.
Key Features
- Very fluid, high-adhesion formula — wets out fiberglass mesh cleanly; flows into laminated buildups without starving the bond line
- Built for lamination and colored materials — Tenax's designated system for fiberglass netting and pigmented stone
- Water-clear cure — cures nearly invisible, maintaining the stone's natural color and pattern
- Deep penetration — reaches the full depth of cracks for a structurally sound, lasting repair
- Superb adhesion — bonds tenaciously to granite, marble, quartzite, and natural stone
- Medium hardness — Shore D 77–80; flexes slightly to resist re-cracking under stress
- UV stability: medium-good — consistent with its intended use in laminated edges and colored stone where the resin line is buried in the buildup or under pigment
Cure Times (from Tenax TDS rev 03, 09/2025)
- Gel time in cup @ 77°F (25°C): 55–75 min
- Tack-free @ 77°F (25°C): ~240 min
- Ready to polish/cut @ 77–95°F (25–35°C): 24 hrs
- Ready to polish/cut @ 59–77°F (15–25°C): 48 hrs
- Minimum cure temp: 59°F (15°C)
- Service range after cure: -13°F to 140°F (-25°C to +60°C)
Ideal Applications
- Lamination and fiberglass mesh backing on stone slabs
- Colored materials where resin line is buried in the buildup or under pigment
- Hairline crack repair in granite countertops, slabs, and tiles
- Consolidating micro-fissures in marble and natural stone before fabrication
- Stabilizing stone prior to cutting, polishing, or installation
Epoxart Kit A+B — Which Ratio Do You Need?
Same proven Tenax epoxy chemistry, three cure profiles. Every kit includes Part A (resin) and Part B (hardener) — always mixed together by weight. All three cure to the same hardness (Shore D 77–80). The difference is cure speed, flow, and sunlight stability.
| Spec | 2TO1 | 3TO1 | 4TO1 |
|---|---|---|---|
| Mix ratio (A : B, by weight) | 2 : 1 | 3 : 1 | 4 : 1 |
| Mixed consistency | Thin syrup — very fluid, wets out mesh and laminations | Thin syrup — thinnest of the three, deepest soak-in | Runny honey — stays where you put it |
| Working time in the cup — 77°F (25°C) | 55–75 min | 150–180 min | 7–8 minutes |
| Tack-free — 77°F (25°C) | ~240 min | 300–360 min | 100–110 min |
| Ready to polish / cut — shop temp 77–95°F (25–35°C) | 8-24 hrs | 24–48 hrs | 6–8 hrs |
| Ready to polish / cut — cool shop 59–77°F (15–25°C) | 48 hrs | 48–72 hrs | 24–48 hrs |
| Sunlight stability (3-yr Xenon test, ISO 11341) | Medium-good — made for laminated & colored work | Good — best of the three | Good |
| Best for | Crack repairs, Lamination, fiberglass netting, colored materials | Porous / fractured stone, outdoor work | Production speed, halo-sensitive white materials |
| Cured hardness (Shore D) | 77–80 | 78–80 | 78–80 |
| Minimum shop temp to cure | 59°F (+15°C) — all kits | ||
| Service temp after full cure | -13°F to 140°F (-25°C to +60°C) — all kits | ||
Every kit, every time:
- Mix Part A + Part B by weight, not volume — the ratio is in the kit name.
- Stone must be completely dry and clean before resining.
- 4TO1 users: mix only what you can apply in about 5 minutes. Pot life is 7–8 minutes at 77°F (25°C).
- Never use PVC containers; keep resin away from copper and brass.
- Gloves and safety glasses required. See the SDS before use.
- Store sealed in original containers at 68–77°F (20–25°C). Do not let the resin freeze. Shelf life 24 months.
Data: Tenax S.p.A. technical data sheets rev 03 (03/09/2025). Laboratory values, indicative — always test on your specific material.
Kit Contents
- Epoxart A-5008 — 1 kg (Resin, Part A)
- Epoxart B-BM50 — 0.5 kg (Hardener, Part B)
- Total kit weight: 1.5 kg
- Mix ratio: 2 parts resin : 1 part hardener (by weight)
How to Use
- Clean and thoroughly dry the stone surface — remove all dust, oils, and debris from the crack.
- Measure by weight: 2 parts resin (Part A) to 1 part hardener (Part B).
- Mix thoroughly using clean corrosion-resistant plastic tools — never PVC, copper, or brass.
- Apply directly into hairline cracks or onto mesh — the water-thin formula self-levels and wicks in by capillary action. Wear safety gloves and glasses.
- Allow to fully cure before grinding, polishing, or loading the surface.
- Reseal containers tightly after use; never let the resin freeze.
Storage & Shelf Life
- Store below 35°C (95°F), away from heat, direct sunlight, humidity, and freezing
- Shelf life: 24 months sealed at 68–77°F (20–25°C)
Not sure which Epoxart ratio is right for your job?
Read our full comparison: Tenax Epoxart 2:1 vs 3:1 vs 4:1 — Which Stone Epoxy Ratio Do You Actually Need?
Choosing the Right Epoxart Kit
- Epoxart 2:1 (this product) — very fluid, high-adhesion; best for lamination, fiberglass netting, and colored materials
- Epoxart Kit 3:1 — thinnest flow, longest open time; best for porous/fractured stone and outdoor work
- Epoxart Kit 4:1 — fastest cure, natural effect; best for production speed and white/color-sensitive stone
Works Well With
- Tenax Epoxart Kit 3:1 — use after 2:1 lamination for larger void filling with maximum penetration
- Tenax Epoxart Kit 4:1 — for fast-cure surface consolidation and facework
- Tenax Fixtop Knife Grade Epoxy — knife-grade 2-part epoxy for bonding, laminating, and setting stone
- Tenax Mixing Cups 12oz (50/Sleeve) — disposable cups for measuring and mixing epoxy components
- Tenax Colored Knife Grade Polyester — for surface chip and void repairs after crack consolidation
Technical data from Tenax S.p.A. technical data sheets rev 03 (03/09/2025). All values are laboratory results and indicative; always test on your specific material.