Seal
Pressing your hands and forearms over the tape and toward the other court so the ball cannot slip between you and the net. A soft block is a net with a gap; a sealed block makes the wipe an attacker’s only hope. FIVB still punishes you if you pull the net, so the pressure is clean, not a tug of war on the white band.
Example
The pin is tight; the blocker is over, hands pressed down, no daylight. The swing dies into the block hands.
Frequently Asked Questions
What does sealing the net mean in volleyball?
It means you erase the space between your body and the net so the ball cannot cheat the block on a tight set. Wipes still happen; holes do not.