Choose T7000 for a faster-setting, general screen and case bond, and T8000 when you need a softer, more flexible seal that remains removable. Both are solvent-based adhesives used in phone repair, and the difference is viscosity, dry time and flexibility. Digi4u supplies both for bench and retail use.
Last updated: August 2026 ¡¤ Reviewed by the Digi4u repair team.
About this guide: based on hands-on bench testing and repair experience; confirm official specifications with the supplier before ordering.
The main differences
| Property | T7000 | T8000 |
|---|---|---|
| Viscosity | Medium, flows well | Softer, more flexible |
| Surface dry time | Around 10-20 minutes | Longer, stays tacky longer |
| Full cure | A few hours | Longer |
| Flexibility | Firm bond | Softer, bendable bond |
| Best use | Screens, cases, quick fixes | Flexible parts, removable seals |
The practical choice is about the job: T7000 sets fast enough for a same-day screen fix, while T8000 suits parts that flex or need to come apart again. The figures in this guide are typical characteristics from common supplier formulations, and the exact viscosity and dry time vary between brands and batches – test the specific tube on scrap parts before a customer repair.
What they have in common
Both adhesives are solvent-based and work by evaporating the solvent as the bond cures. They need a clean, dry surface, and they bond better with a thin, even layer than with a thick blob. Neither is a structural replacement for screws or clips; they are the sealing layer in a repair.
When to use T7000
Use T7000 for glass-to-frame seals, screen reattachment and case repairs where the part stays still after the fix. Its faster set time makes it the everyday bench choice, and it holds well on the flat surfaces of a phone.
When to use T8000
Use T8000 when the bonded part flexes, such as a rubber bumper, a soft case layer or a part that needs to be removed in the future. The softer bond absorbs movement without cracking, and the adhesive stays workable longer during assembly.
Application tips
Clean both surfaces with alcohol, apply a thin bead along the edge, press the part into place and hold it under pressure while the adhesive sets. A pressure-holding step or a clamp improves the result because the bond forms under even contact.
Storing and applying adhesives
Both adhesives are solvent-based, which means the storage and the application decide how long they last. Keep the tubes capped and stored upright at room temperature, because the solvent evaporates slowly and a tube left open thickens into a waste of money.
Application is about the bead, not the squeeze. A thin bead along the edge presses out to a clean bond, while a thick bead oozes into buttons, ports and gaps. Use a nozzle that matches the job, and keep a needle tip for the tight areas around flexes.
The pressing step matters as much as the adhesive: the parts need even pressure while the solvent cures. A clamp or a weight beats hand pressure for a flat screen, and the pressure should stay on until the adhesive has set, not until the phone looks fixed.
Keep both tubes in the kit, cap them upright and apply a thin bead with a needle tip. The adhesive and reseal supplies at Digi4u keep the bench stocked, and the thin bead is the difference between a clean seal and a sticky phone.
For the reseal technique around the adhesive, see the safe iPhone opening guide.
Digi4u workshop notes
Our bench rule: T7000 for the flat fix, T8000 for the flexible one. Thin bead, clean surfaces and a few minutes of pressure beat any adhesive applied thick.
¡ª Digi4u repair team (bench notes)
Conclusion
T7000 and T8000 are both reliable repair adhesives, and the choice comes down to set time and flexibility. Compare the adhesive range at Digi4u.
Frequently Asked Questions
Is T8000 stronger than T7000?
They have different strengths: T7000 is firmer and faster-setting, while T8000 is softer and more flexible. Strength depends on the surface and the application.
How long does T7000 take to dry?
Surface dry takes around 10-20 minutes, with a full cure over a few hours. Temperature and humidity change the times.
Can I use these adhesives on any screen?
They suit glass-to-frame and case repairs, but model-specific adhesive strips usually give a cleaner seal for full screen replacements.
