Here’s How to Choose the Correct Caulking or Sealant

Caulking & Sealant Types

Here are the main differences to be aware of between caulking and sealants, which are a more specific type of caulk, plus a couple of options that are variations of the two.

Specialty Caulking

In many cases, an all-purpose caulk or sealant will get the job done. But sometimes, you may get more utility from a specialty caulk. Here’s what to consider.

Fast Drying

Most regular caulking is dry to the touch after 30 minutes, but full curing can take up to 24 hours. Only then can it be painted. If you’re in a rush, opt for fast-drying caulk, which can be painted just one hour after application

Sanded or Unsanded

Sanded caulking has a grainy texture that helps it adhere to wet surfaces or sanded grout and expand safely into larger gaps. This makes it a good choice for 1/8-inch gaps or larger. Unsanded caulking has a smooth texture and clean finish. It suits countertops and backsplashes, but may not bond well to wet surfaces and sanded grout.

Specialty Formulas

Depending on your project, you may get superior performance from a specialty caulk like butyl caulking (can be applied to wet outdoor surfaces), gutter sealant (cures quickly and is extra flexible), marine silicone sealant (extremely water and temperature-resistant) or plumber’s putty (a malleable putty used to seal leaks in plumbing fixtures).

Caulking Accessories

Get the best possible results on DIY caulking projects with the right caulking gun and accessories. Here are several options to consider for your indoor and outdoor jobs.

Ratchet Rod Gun

This inexpensive caulking gun uses a serrated rod that “catches” with each hand squeeze. They’re a good basic tool for general use.

Smooth Rod Gun

Also known as a dripless caulking gun, this type of caulking gun features a thumb lever to release pressure without letting any extra caulk or sealant ooze out

Revolving Frame Gun

This type of caulking gun has a swivel frame type that allows you to run your caulking bead around corners without interruption for a cleaner, smoother look

Caulking Multi-Tool

Ensure professional-looking results with this scraper and blade tool. It removes old caulking and sealant and neatens the bead on new seams for a clean look.

Power Gun

The pneumatic electric or pneumatic battery-powered caulk gun trades the standard hand trigger for a precise finger trigger. This helps reduce hand and wrist fatigue while allowing you to better focus on your bead.

Caulking Tape

This decorative tape covers mildew and can seal seams without any mess. It’s not a caulk substitute, but a good temporary fix between caulk jobs