Sashco Slab Concrete Crack Repair Sealant 10.5 oz, Gray, Textured
by Sashco
Availability:
in stock, fast shipping!
Original price
$34.99
-
Original price
$34.99
Original price
$34.99
$34.99
-
$34.99
Current price
$34.99
Textured to Look Like Concrete, and It Handles Movement
Sashco Slab is a 100 percent acrylic latex crack repair sealant, textured so the repair reads as aged concrete rather than a shiny caulk line. Unlike a rigid filler it is rated for movement, 25 percent total joint movement to ASTM C719, which means it belongs in a joint that actually moves.
2 in
Maximum joint width
25%
Total joint movement
32 lin ft
At a 1/4 in bead
No solvents
Water based, no isocyanates
Joint Sizing
| Maximum joint size | 2 inches, the widest of the crack sealants we carry |
| Minimum bead | 1/4 inch, though Sashco recommends 3/8 inch or larger for best results |
| Backer rod | Required in joints deeper than 1/2 inch |
| Coverage | 32 lineal feet at a 1/4 inch bead |
Specifications
| Product | Sashco Slab, item 16210, 10.5 oz, Gray |
| Type | 100 percent acrylic latex, water based |
| Standards | Meets or exceeds ASTM C834 and TT-S-00230C |
| Durability | 25 percent total joint movement, 10 cycles at -15 F, ASTM C719 |
| Shore A | 32 at 21 days |
| Elongation at break | 266 percent |
| Tack free | Under 30 minutes |
| Full cure | 4 to 5 days, up to a week in cool or humid conditions |
| Application temperature | 40 to 120 F surface temperature |
| Service temperature | -30 to 250 F |
| VOC | 59.8 g/L |
How It Compares to the Other Two We Sell
We carry three products that go into concrete joints and they are not interchangeable. Slab is the mid weight option: genuinely movement rated, the widest joint capacity at two inches, and water clean up. Sikaflex Self Leveling is the heavy duty choice, carrying a full ASTM C920 Class 25 elastomeric rating, but it is limited to one and a half inches wide and it only works on horizontal joints. Liquid Nails CR-805 is capped at half an inch. Slab is not self levelling, so for a poured horizontal control joint the Sikaflex is the correct product.
Where Sashco Says Not to Use It
- Not for submersion.
- Not on driving surfaces until fully cured. Lay plywood over it if you must drive across.
- It will not stick to silicone, waxes, polypropylene, polyethylene or Kynar. Old silicone and every trace of its residue must come out first with a silicone remover.
- It is not self levelling, so it needs tooling and will not flow flat on its own.
- Expect a concave finish. Natural shrinkage dishes the joint, and a second pass may be needed to fill flush.
Curing and Weather
- Allow one to three days of cure before direct rainfall. If rain arrives sooner, cover it with plastic sheeting with airflow underneath.
- Paintable after four hours with exterior paint, one to two days interior, and a week before oil based paints.
- Cool temperatures and high humidity both slow the cure down.
Not Sure Which Joint Product You Need?
Tell us the joint width, the depth and whether it moves, and we will tell you which of the three is right. Call or text (856) 418-4895 or email info@polymericsandstore.com.
Technical Documents
Documents open from the manufacturer, so you always get the current revision. Every sheet we carry is also listed on our TDS and SDS library.
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