Family Handyman

Done with the caulking job but the tube’s only one-third empty? Dip the caulk tube nozzle into a can of Plasti Dip rubber coating. You’ll create an airtight seal that’s easy to peel off when the next job calls. Thanks to Kevin Lind for this tight tip.

Check out these Tips For Caulking. Use these tips for perfect results every time!

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Four Common Formulas

  • Acrylic Latex: $2 to $5: Acrylic latex caulks are the easiest to apply and smooth out. They’re also the only sealants that clean up with water. Look for versions labeled “siliconized” or “plus silicone.” Adding silicone to acrylic latex improves adhesion and flexibility.
  • Polyurethane: $6: Poly caulks are generally tougher than other sealants, making them a good choice for driveways and other areas that take a beating. But their gooey consistency makes them hard to work with. Check the label before painting; you may have to wait several days.
  • Solvent-Based: $6 to $9: Many solvent-based caulks are great for roofing because they don’t degrade in direct sunlight and can be applied to wet surfaces. But they’re gooey and hard to apply neatly.
  • Hybrid: $7 and up: Most hybrid caulks combine silicone and polyurethane for top-notch adhesion, flexibility and longevity. They’re easier to apply neatly than polyurethane, but not as easy as acrylic latex. Most aren’t labeled “hybrid,” so we’ve pointed out the hybrids in the various photos. Cost is a clue: High-quality hybrids are usually the most expensive caulks on the shelf.

Exterior Siding and Trim: Choose a Hybrid or Polyurethane

Exterior Siding and Trim: Expensive Caulk is Worth It

Interior Painting: Choose Acrylic Latex

Interior Painting: A Superior Acrylic Latex Caulk

Kitchen and Bath: Just Check the Label

Kitchen and Bath: What About Silicone?

Concrete and Masonry: Choose a Specialty Caulk

Concrete and Masonry: Self-Leveling or Not?

Roofing: Consider the Elements

Roofing: Choose Solvent-Based Sealants

Gutters: 100 Percent Waterproof

Gutters: Go With a Hybrid or Solvent-Based Product