First, apply a sealant bead onto plastic film (or another non-stick surface).
Gently touch the bead at intervals (e.g., every 5 minutes). When it no longer sticks to your finger, record the time as a reference for tack-free (surface dry) time.
After an initial cure period (often around 24 hours, depending on conditions), lightly touch the surface to check whether it still feels tacky.
After further curing, you can do a simple elasticity check: slowly stretch a cured strip to about 100%, hold briefly (e.g., 5 seconds), then observe cracking and recovery.
These are reference checks only. For acceptance/quality judgement, use the product TDS and relevant standards, or consult the manufacturer.
