Key Differences Between Caulking and Sealing
1. Composition and Flexibility
- Caulk is generally more rigid once dried and is used for filling gaps and cracks.
- Sealants are more flexible and work better for areas with high expansion and contraction.
2. Application Areas
- Caulking is commonly used for indoor applications such as baseboards, window trims, and bathtubs.
- Sealing is ideal for outdoor applications like roofs, driveways, and joints in concrete slabs.
Choosing the Right Material
When to Use Caulk:
- Sealing small cracks in drywall and wood.
- Applying a paintable finish on trim and molding.
- Preventing moisture damage in kitchens and bathrooms.
When to Use Sealant:
- Sealing expansion joints in sidewalks and driveways.
- Protecting exterior structures from weather damage.
- Waterproofing outdoor masonry and metal surfaces.
Conclusion
Both caulking and sealing have distinct uses in home improvement. Selecting the right one based on flexibility, application, and durability ensures long-lasting protection for your property.