Sashco Mor-Flexx Repair, Charcoal, 10.5 oz
Sashco Mor-Flexx Mortar & Stucco Repair in Charcoal, 10.5 oz, repairs textured masonry joints with an elastic sealant. The March 2025 data sheet gives 32 lineal feet from this cartridge at a 1/4-inch bead; wider beads need more material. Check the supplied label because linked technical documents differ.
Features
- Textured sealant blends with mortar and stucco.
- Elastic repairs accommodate movement.
- A caulk gun avoids powder mixing.
- The repair is paintable after the stated wait.
- Tools clean up with soap and water.
Best for
Repairing mortar, stucco, brick, stone and faux stone joints. This is a repair sealant, not structural mortar. Concrete must be at least six months old. Avoid driveways, sidewalks and other high-traffic areas, prolonged immersion and hydrostatic water pressure.
Specs
| Color / size | Charcoal / 10.5 oz cartridge |
|---|---|
| Base / finish / use | Water-cleanup, textured sealant for masonry repairs; resin and sheen class not specified in linked TDS |
| Coverage | March 2025 TDS: 32 lineal ft at a 1/4-inch bead; wider beads reduce yield |
| Tack-free / cure | TDS: under 30 minutes / 4–5 days, depending on temperature, humidity and bead size |
| Recoat / coats | Paint after 4 hours with exterior water-based paint or 1 week with oil paint; shrinkage may require additional sealant applications for a flat joint |
| Conditions / tools | TDS: 40–120°F surface / caulk gun, damp foam or paint brush |
| Thinning / cleanup / VOC | No dilution recipe specified / warm water and soap / TDS 44 g/L; linked brochure 59.8 g/L, formula unresolved |
| Manufacturer part # | 15040 |
How to apply
- Remove loose material and dust. Wash away dirt or oils, rinse and let dry. Insert backer rod into joints deeper than 1/2 inch.
- Check the supplied cartridge label and conditions. Cut the nozzle and puncture the inner seal. Gun into the joint: minimum bead 1/4 inch; the TDS prefers 3/8 inch or larger for best results.
- Tool lightly with damp foam or a paint brush. Protect against direct rain for 24–48 hours; cool or humid conditions may need longer. Where rain comes sooner, the TDS specifies plastic sheeting with airflow underneath.
- Allow the paint and cure intervals above, following the supplied label. Clean tools and hands with warm water and soap.
Good to know
The linked performance report differs from the TDS on tack-free time and application temperature; the brochure differs on VOC. These source conflicts remain unresolved: confirm the supplied formula and label before use. Avoid polystyrene foam, silicone, waxes, polyethylene, polypropylene and Kynar.
WARNING: The 08/30/2024 SDS states serious eye irritation and possible kidney damage through prolonged or repeated oral exposure. Follow the label and SDS, ventilate, avoid breathing fumes, spray or vapors, and wear specified gloves, protective clothing and eye/face protection. Keep away from children. Its California warning names formaldehyde for cancer and ingested ethylene glycol for reproductive harm.
Questions
Can I paint the repair? Yes; observe the paint-specific intervals above.
Will the swatch match? Digital colors vary; check the color on your surface.
What do the photos show? The first is the selected Charcoal cartridge, the second shows the five-color family, and the third is the named Charcoal texture swatch. Photos do not establish VOC formula or lot.