Description
Fast-drying micro-fissure concealer for polished granite. Tenax Pectro is a specialized surface treatment applied to polished granite to hide, disguise, and eliminate micro-fissures and webbing — the fine hairline surface cracks that appear on granite slabs and are visible under raking light or in certain lighting conditions. Applied and buffed off in approximately 5 minutes, Pectro penetrates and fills these surface imperfections without adding color enhancement or altering the stone’s natural appearance.
Available in Clear (most effective on light and medium-colored stone) and Black (for dark and black granite). 2-year shelf life.
Key Features
- Conceals micro-fissures and webbing on polished granite
- Fast-drying — approximately 5-minute drying time
- Available in Clear and Black variants
- Clear is especially effective on light and medium-colored stone
- No color enhancement — preserves the natural stone appearance
- Prevents superficial glossy or sticky films when applied correctly
- 2-year shelf life
Clear vs. Black — Which to Choose
- Pectro Clear (SKU: 1MRA00BG50) — for light and medium-colored granite and polished stone; most versatile option
- Pectro Black (SKU: 1MRT01BG50) — for dark and black granite where a clear treatment would lighten the appearance of fissures
Pectro vs. Petrolux — Which to Choose
- Pectro (this product) — micro-fissure concealer only; no color enhancement; Clear and Black variants; 5-minute dry time
- Petrolux — treats micro-fissures while also enhancing stone color and adding a topical polish; single clear formula; degree of color change varies by granite
Compatible Materials
- Polished granite (primary application)
- All colors of polished stone — Clear variant especially effective on light and medium shades
How to Apply
- Ensure the surface is clean and dry before application
- Spread Pectro evenly with a cloth or sponge until the surface no longer absorbs the product
- Immediately buff with a clean cloth to remove any excess — do not allow to dry on the surface
- Drying time is approximately 5 minutes; do not walk on the surface until fully dry
- Test on a small hidden area before first use
- Store between 65°F–77°F away from heat and direct sunlight; 2-year shelf life
Works Well With
- Petrolux — alternative micro-fissure treatment with added color enhancement and topical polish
- Tenax Ager — impregnating sealer to follow surface treatment for lasting stain protection
- Cera Black G — black granite maintenance wax; use after Pectro Black for ongoing maintenance
- Tenax Granite Polishing Powder — restore granite polish before applying Pectro
- BrioAction 3 Professional Stain Remover — clean and degrease stone before applying
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.




