Banish Cracks Forever!
Make invisible, permanent repairs to cracked walls and ceilings in under an hour. No sanding required. Once the second coat dries, it is ready to paint! No primer needed.
The specially formulated acrylic emulsion is used with a polyester mesh to bridge over cracks. It retains its flexibility as it dries, without shrinking. This allows the repair to move as the wall moves, leaving a seamless repair that will not reopen like other fillers or putties.
KRACK KOTE can be used on drywall, plaster, stucco, wood, concrete, and cement block. It cleans up easily with soap and water. The kit contains:
You can if you want, but it is not necessary at all.
I would suggest purchasing at least a quart or a gallon.
Yes, it's sandable.
You could bridge it, but there may be a bump there. It will not hold the paper down.