Open cracks, skimmer throats, return fittings. Twice the stick for the jobs where a 2 oz runs out halfway.
Prices come from the listing and move without warning. What you see when you land there is what counts.

Open crack you can get a scraper into takes roughly 2.5 cubic inches, so one 4 oz leaves 1.16 spare.
Gap at the skimmer throat takes roughly 3 cubic inches, so one 4 oz leaves 0.66 spare.
Seam around a return fitting or light niche takes roughly 2 cubic inches, so one 4 oz leaves 1.66 spare.
Those volumes assume the crack has been opened to the eighth of an inch the data sheet calls for. Measure yours and run it through the putty calculator if the repair is long.
| Pack size | 4 oz |
|---|---|
| Yield of mixed putty | 3.66 cubic inches |
| Working life | 5 to 15 minutes |
| Set time | 20 to 30 minutes |
| Full cure | 1 to 2 hours |
| Compressive strength | 8,000 psi |
| Shrinkage | under 1 percent |
| Density | 118 lb per cubic foot |
| Service temperature | -40 to 250 °F continuous, up to 300 °F intermittent |
| Cured color | White |
| Structural use | No. Not intended for structural applications. |
| UPC | 094828303207 |
The listing records the color as Yellow. Our data sheet gives the cured color as White, and that is the one that matters once the repair has gone off.




Hairline cracks, chips, a loose tile, the seam round a light ring. One stick covers a repair of about a cubic inch and a half.

Step treads, spa floors, spalled patches bigger than your hand. Two cartridges, cut equal lengths from each.