House with sealed paver driveway

1. Surfaces must be clean and free of any contaminants before sealing. Have a cleaner on hand for use on the finished surface for any spot clean-ups to maintain your investment.

2. Before application, make sure your surface is completely dry and allow enough time to dry after application. If you live in an area with frequent rain or simply don’t want to wait multiple days after pressure cleaning to seal your surface, our water-based Cobble Loc family of products can be applied on damp surfaces, allowing you to clean and seal in the same day. Move any vehicles before application and if they need to be driven during the drying period, ensure they are accessible.

3. If you are re-coating a surface, as a general rule, you should use the same type of sealer or coating - solvent-based over solvent-based, water-based over water-based. In many situations, our water-based Cobble Loc products can be applied over previous solvent-based applications, however we always recommend an adhesion test when applying a different sealer over a previous application. And remember, your reseal application is only as good as the previous sealer application!

4. Don’t know what type of sealer was previously used? Apply a small patch of xylene over an area of the surface that still has sealer on it. If the patch re-emulsifies back to its liquid state, the previous sealer was xylene-based. If the patch becomes gummy, the previous sealer was water-based. Due to the variety of products available, apply sealer on a test area first to determine compatibility.

5. Always consider safety as a factor after your sealing application and determine whether you should add a non-skid additive to your application.

6. Determine what type of sealing product is best for your surface. Some situations require the use of a breathable, penetrating sealer, such as Cobble Impregnator, instead of a film-forming sealer. If your surface is unable to dissipate moisture, has other moisture retention issues, or if you have pavers installed over a concrete slab without good drainage, we recommend a penetrating sealer to ensure your surface can breathe and to avoid hazing that could come with using a film-forming sealer.