Paver Patio Cleaning, Joint Sanding & Sealing

Film-Forming vs. Penetrating Sealers: What’s the Difference?

When it comes to protecting your patio or hardscape, choosing the right type of sealer makes all the difference. There are two main categories of sealers: film-forming and penetrating—each with distinct benefits depending on your stone type and aesthetic preference.

Film-Forming Sealers

What it is:

Film-forming sealers create a visible protective layer on top of the stone or paver surface. This coating enhances the color and provides a “wet look” or glossy finish, depending on the product.

Best for:

• Concrete pavers

• Stamped concrete

• Bricks

• Dark or dense stones (e.g., bluestone, slate)

Pros:

• Enhances color and shine (“wet look” effect)

• Provides a barrier against water, oil, and UV rays

• Can be slip-resistant with additives

Cons:

• May need reapplication every 2–3 years

• Can become slippery when wet if not treated

• Less breathable—moisture trapped underneath can cause clouding if not properly applied

Penetrating Sealers (Impregnating Sealers)

What it is:

Penetrating sealers soak below the surface into the pores of the stone or concrete, forming an invisible barrier that repels moisture and stains while leaving the natural appearance unchanged.

Best for:

• Natural stone (e.g., travertine, flagstone, limestone, sandstone)

• Porous or light-colored surfaces

• Areas where a matte, natural look is preferred

Pros:

• Maintains the stone’s original look

• Excellent moisture and stain resistance

• Breathable—won’t trap water underneath

• Long-lasting (up to 5–10 years in some cases)

Cons:

• Doesn’t enhance color or sheen

• May require more careful selection based on stone porosity

Which One Is Right for Your Patio?

• Want to boost color and create a rich, wet look? Go with a film-forming sealer on concrete or darker stones.

• Prefer a natural finish with strong protection? Choose a penetrating sealer for porous, lighter-colored natural stones.