Hello Etienne. We can’t answer that question because we could not find a data sheet on Hydro-Force Viper Hybrid Densifier that lists the ingredients. In other words, what is combined with the densifier that make it a hybrid mixture? If it’s any kind of a sealant, then GhostShield 8505 will be repelled and not work. We recommend contacting GhostShield to ask. Better yet, contact Hydro-Force to ask what the active ingredients are and then contact GhostShield with that information.

Thank’s
Etienne

Thank you Shea. I’ll check with with the manufacture before testing. Appreciate your willingness to share your knowledge and expertise with the garage/shop community!

Hi Keith. Oil repelling sealers such as these will definitely help in that regard. However, we would recommend contacting each vendor to discuss. If the current sealer is repelling water, then chances are that it’s going to repel the additional sealer. It may require some small testing. Oil repelling sealers work well with densifiers since densifiers technically do not seal the concrete. However, it can be hit or miss when applied over another sealer.

Hi Krista. Yes, GhostShield 8505 is compatible with Pentra-Hard Densifier. In fact, it is compatible with any brand of lithium-based densifier as long as no additional sealers are added to the densifier itself. If you want maximum protection, we recommend the solvent-based 8510 over the water-based 8505. The solvent-based version can be applied in one flood coat and has proven to provide slightly better protection.

Oil repelling penetrating sealers such as GhostShield 8505 – 8510 or PS100 by Concrete Sealers USA provide superior stain resistance compared to other penetrating sealers, but they are not stain proof. There are many great reviews for these type of sealers from people with realistic expectations. Just be aware that any petroleum or chemical spills should be cleaned within a reasonable time. Otherwise, they can still penetrate the surface of the concrete eventually and stain. It’s important to remember that these sealers are penetrating and not an actual coating.