Related Clues:

• Gum
• Resin used in varnishes
• Varnish resin
• Bathtub sealant
• Make watertight
• Make leakproof
• Sealing material
• Leak fixer
• Make airtight, in a way
• Stop up, in a way
• Filler for a gun
• Make watertight, in a way
• Work on a joint
• Fill the crevices of, as a window frame
• Tree that yields a chewable resin