The Difference Between Film-Forming and Impregnating Sealers in Exterior Cleaning
Impregnating Sealers – When providing exterior cleaning services, it’s essential to educate customers on the importance of sealing their surfaces after cleaning. A well-applied sealer extends the life of patios, driveways, and other exterior surfaces while protecting them from weathering, staining, and deterioration. However, not all sealers are the same. The two primary types—film-forming and impregnating sealers—offer different levels of protection and finish. Understanding their differences will help you recommend the best solution for your customers.What is a Film-Forming Sealer?
A film-forming sealer, as the name suggests, creates a protective layer on the surface of the material. This layer acts as a shield, preventing moisture, dirt, oil, and other contaminants from penetrating the substrate.Key Benefits:
- Creates a glossy or satin finish, enhancing the appearance of the surface.
- Forms a barrier that prevents staining and water penetration.
- Often used on concrete, block paving, and natural stone to enhance colour.
- Provides a sacrificial layer that can be reapplied when worn.
Best Applications:
Film-forming sealers are ideal for decorative surfaces, driveways, and areas where customers want an enhanced aesthetic appeal. They work best on surfaces that experience moderate foot or vehicle traffic and where additional slip resistance can be incorporated.What is an Impregnating Sealer?
Unlike film-forming sealers, impregnating sealers penetrate deep into the substrate and provide protection from within. They chemically bond with the surface to create a hydrophobic barrier that repels water and contaminants without altering the natural appearance of the material.Key Benefits: Impregnating Sealers
- Maintains the natural look of the surface with no visible coating.
- Offers long-lasting protection against water, oil, and organic staining.
- Allows the surface to breathe, preventing moisture buildup that can lead to damage.
- Ideal for high-traffic areas and porous materials such as sandstone and limestone.
Best Applications:
Impregnating sealers are perfect for natural stone, brick, and other porous materials where maintaining the original appearance is essential. They are especially useful in areas with high exposure to moisture, such as patios and outdoor pathways.Which Sealer Should You Recommend?
When advising customers on the best sealer for their exterior surfaces, consider these factors:- Aesthetic Preference: If they want a glossy or enhanced colour effect, a film-forming sealer is the best option. If they prefer a natural look, an Impregnating Sealers is ideal.
- Traffic & Wear: For driveways and areas with heavy foot traffic, an Impregnating Sealers offers durable, long-lasting protection. Film-forming sealers may require more frequent reapplication.
- Moisture Exposure: In damp environments, impregnating sealers allow the surface to breathe, reducing the risk of trapped moisture and subsequent damage.