Miracle Sealants 511 Impregnator"The Original Impregnating Sealer" 3.785L (US Gallon)

A very Good Product. The seller also has given good support. Used in on sand stone tiles in the garden.

Muy buen producto, lo uso para sellar ceramica en el exterior de la casa y en terraza, con una buena limpieza antes de aplicar el sellador salio como nuevo y con excelente resistencia al agua. Se aplica muy facil con una toalla humeda, se seca en minutos para pisar. 5 estrellas sin duda

The 511 Impregnator Sealer from this seller is an excellent value when compared to local stores who sell the same product. My intended application for the sealer is to seal limestone (white) blocks for prevention of moisture absorption. The blocks (exterior yard application) look great when first set but are quick to absorb moisture, and over time black mold appears which cannot be removed. Consequently, the beauty of the garden is quickly tarnished once this occurs. I called the manufacturer of the 511 sealer and explained that my intended purpose is to apply the sealer to exterior limestone blocks to prevent moisture absorbtion in an outdoor setting. They said it would achieve my purpose and suggested using at least two coats of the sealer. I first brushed the blocks with a stiff bristle brush to remove surface dust and then applied the sealer liberally to the limestone blocks. I allowed several hours between coat application on a 80 degree day. The optimal method for applying the sealer is with a 3 inch cheap paint brush dipping sealer out of a one quart plastic paint container. The sealer goes on effortlessly. I coated the top and one exterior side. I coated 60 linear feet x 8" height of limestone blocks using the one gallon product. I had over a quart of sealer left upon completion. I had a concern that the blocks would yellow or darken after the application. However, I was pleased that the original white was maintained after the sealer dried. I will follow-up on this 12/17/21 review in May / June 2022 for the purpose of how effective the product was for maintaining the original appearance of the limestone. May 2024 I am following up on a review done in 2021 concerning the performance of the 511 Impregator sealer. I applied this great sealer to limestone blocks some three years ago and amazingly no fungus, mold or other has grown on the limestone blocks placed in my wife's garden. They have retained their nice white appearance over the years. I highly recommend this sealer.

Excelente producto, muy recomendado.

I bought whole gallon and treated/prepared for rainy seasons my outdoor porch terracotta tiles. I lost count how many times I applied with sponge. Many times as I had a whole gallon. After first rain, tiles appear to be soaked/discolored, so looks like it is not working. This is deeply penetrating sealant and highly recommended by customers, so I am confused how it works for some and doesn’t for others. Perhaps that is not the best product for terracotta tiles?!