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Dayton Superior Recrete 20 Minute Repair Mortar 50lb Pail 67315
Recrete 20 Minute is a polymer-modified, fast-setting cement mortar for vertical, overhead, and horizontal concrete patches.
- Putty-like mix that can be shaped and sanded
- Interior or exterior light-traffic repairs
- Initial set about 20 minutes
$45.71
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Dayton Superior Recrete 20 Minute Repair Mortar, 50 lb Pail
Recrete 20 Minute is a polymer-modified, fast-setting cement repair mortar for vertical, overhead, and horizontal patches on interior or exterior concrete subject to light traffic. The putty-like mix holds on walls and soffits, then can be shaped, molded, and sanded after initial set. It is shrinkage compensated. Also available as the Recrete 20 Minute 50 lb bag.
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Key Features
- Putty-like mortar for vertical, overhead, and horizontal patches
- Polymer modified and shrinkage compensated
- Can be shaped, molded, and sanded after initial set
- Rapid strength gain for light-traffic repairs
- Interior or exterior use on pipe, steps, walls, and slabs
- Initial set about 20 minutes; do not retemper
Applications
- Concrete pipe, precast, steps, walls, and columns
- Sidewalks, driveways, and large floor cracks
- Vertical and overhead patches that need to hold shape
- Interior or exterior light-traffic repairs
Technical Specifications
| Property | Value |
|---|---|
| Chemistry | Polymer-modified cement repair mortar |
| Set time (ASTM C266) | Initial 20 min / final 30 min |
| Compressive strength | 2,900 psi at 3 hr; 3,500 psi at 1 day; 6,500 psi at 28 days (ASTM C109) |
| Bond strength | 1,200 psi at 1 day; 2,400 psi at 7 days (ASTM C882 mod. C928) |
| Classification | ASTM C928 R2 very rapid hardening |
| Min. thickness | 1/8 in. (do not feather edge) |
| Max. neat lift | 2 in. per lift |
| Yield | 0.45 to 0.48 cu. ft. per 50 lb unit |
| Min. application temp. | 40°F (4°C) |
| Packaging | 50 lb pail |
| Shelf life | 12 months bag / 18 months pail, dry storage |
Product documents: Recrete 20 Minute Technical Data Sheet (PDF)
Frequently Asked Questions
What is Recrete 20 Minute?
Recrete 20 Minute is a polymer-modified, fast-setting cement repair mortar for vertical, overhead, and horizontal patches on interior or exterior concrete subject to light traffic.
How fast does it set?
Initial set is about 20 minutes and final set about 30 minutes (ASTM C266). Mix only what you can place in that window. Do not retemper.
Can it be used overhead?
Yes. The putty-like consistency is intended for vertical and overhead work that needs to be shaped, molded, and sanded after initial set.
How thick can a patch be?
Minimum thickness is 1/8 in. Maximum neat lift is 2 in. Larger repairs can be extended with clean SSD pea gravel per the datasheet. Do not use it to resurface large floors.
How do the pack sizes compare?
This page is the 50 lb pail. The same mortar is also listed as the Recrete 20 Minute 50 lb bag.
Should Acrylic Bonding Agent J40 be used?
J40 is recommended as part of the mix water for freeze-thaw exposure or when higher adhesion is desired. Dilute J40 with up to 3 parts water per the Recrete datasheet.
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