Black Jack All-Weather Plastic Roof Cement
Cartridge roof cement · US · manufacturer-sourced
How long does Black Jack All-Weather Plastic Roof Cement take to dry?
Short answer
Bead cure stages
Skin, tack-free and paint-ready are not the same moment
- Gun a continuous bead of Cartridge roof cement
- Tool it inside the working time
- Keep it dry until the stated water-ready time
This product’s stated stages Quoted at 73°F
- Set4–8 hours
- Full cure1–2 days
Worth noticing: Set at 4–8 hours; full cure at 1–2 days.
Common mistake: Showering or painting at skin-over, when the bead is only crusted on the outside.
Bond-strength path
Assembly, handling and full load are different stages
Time the caulk cure
Your countdown
Stated times
- Set / hardened4–8 hours
- Full cure1–2 days
From Black Jack (Gardner-Gibson) data sheet · checked 2026-10-25. Anything not listed isn’t stated by the manufacturer.
Manufacturer website: gardner-gibson.com
Conditions & fine print
- Stated conditions: 73°F (23°C)
- Dry and recoat times change with temperature, humidity and film build. Follow the current data sheet and label.
- Temperature range: 50°F to 120°F
- Region US. Formulas can differ between countries; check your container.
- Set / hardened: The source gives no conditions for this time.
- Full cure: The source gives no conditions for this time.
- Entered from the cited manufacturer documentation. Check the current label for the exact formula and region. Report outdated information
- Actual results depend on preparation, thickness, ventilation, temperature, humidity, mixing and substrate.
Confirm this is your product
Closely named formulas, colors and regional versions can use different times. Match these details to your container before starting a countdown.
- Exact listing
- Black Jack (Gardner-Gibson) Black Jack All-Weather Plastic Roof Cement
- Variant
- Cartridge roof cement
- Region
- US
- Listed use
- roof repair, flashing, leaks
- Timed stages recorded
- set, full cure
- Source checked
- 2026-10-25
Documentation: Technical data sheet copy · Form E-07, copyright 2007
Condition attached to the stated time: The source gives no conditions for this time.
About this product
A cartridge roof cement with a sheet from 2007. It sets in 4 to 8 hours and cures in 24 to 48 hours, and the cartridge should be brought to room temperature for 24 hours if the roof is below 50°F.
Using this specific product
Black Jack (Gardner-Gibson) Black Jack All-Weather Plastic Roof Cement is listed here as the Cartridge roof cement version for roof repair, flashing, and leaks. For sealing a joint, the useful question is not simply whether the surface looks finished—it is whether the exact next-action milestone shown above has been reached.
Before you start
- Confirm the package says Cartridge roof cement; related versions can use different timing.
- For roof repair, flashing, and leaks, pay particular attention to joint depth, tooling, ventilation and exposure to water.
- The source gives no conditions for this time.
How to check readiness
Probe an inconspicuous edge for a continuous skin and follow the stated water-exposure milestone. The data sheet gives 4 to 8 hours to set. Reserve full cure for demanding use, chemicals, washing, immersion or load—not merely gentle handling.
Avoid this mistake
Surface skin is not the same as through-cure, especially in a deep joint.
Compare with similar products
- Compare with Henry 925 BES SealantSet: 1 day there, 4–8 h here.
- Compare with LATICRETE Premium Acrylic CaulkSet: 2 days there, 4–8 h here.
Questions
How long does this product take to dry?
Black Jack (Gardner-Gibson) states: The data sheet gives 4 to 8 hours to set. Conditions: The source gives no conditions for this time.. The data sheet gives 24 to 48 hours to cure, depending on surface and weather. Conditions: The source gives no conditions for this time.. These are the manufacturer’s stated times, not a guarantee.
Can Black Jack All-Weather Plastic Roof Cement be applied in cold weather?
The data sheet gives an application range of 50 to 120°F, and says to keep the cartridge at room temperature for 24 hours first if it is colder than 50°F.
How long does this product take to fully cure?
Black Jack (Gardner-Gibson) states: The data sheet gives 24 to 48 hours to cure, depending on surface and weather. Conditions: The source gives no conditions for this time.. These are the manufacturer’s stated times, not a guarantee.
What affects how long this product takes to dry or cure?
Dry and recoat times change with temperature, humidity and film build. Follow the current data sheet and label. Follow the product label for your conditions.