A water-based, no-sheen, and economical impregnation or penetration sealing compound for all porous surfaces is called a penetrating sealer. Low viscosity primers achieve the maximum penetration for concrete, a porous substrate surface. For hardened concrete with a hard porous surface, you must dilute the primer to lower the viscosity and enhance penetration capability.
Several different types are available in the market for a penetrating sealer, including silicones, siloxanes, silanes, and silicates. They can form a chemical barrier upon penetration inside a concrete surface. This barrier shields against both harmful chemicals as well as moisture. Most penetrating sealers are breathable, allowing moisture vapour to escape porous surfaces. They also provide invisible protection as they tend not to change the surface appearance. Since they provide excellent protection amidst rough environmental conditions, they are best used outdoors.
Typical uses of a penetrating sealer
Porous surface waterproofing: This is the primary task of any penetrating sealer. It commonly protects materials with a porous surface, such as concrete, from water exposure and excess moisture. These porous surfaces tend to suffer from the risk of damage from mould growth and other issues in the absence of a reliable penetrating sealer. A premium quality penetrating sealer would allow the concrete to breathe while repealing both oils and water. It should also lengthen the material's lifespan by a substantial amount without changing the appearance of the porous surfaces.
Sheen and Stain Protection: A good quality penetrating sealer can enhance the appearance of a porous surface like concrete by giving it an attractive shine and a stain-free, substantially cleaner look. Most porous surfaces like concrete succumb to water and moisture damage. They are vulnerable to discolouration caused by materials seeping deep inside the porous surface, such as dirt. It causes staining of the concrete surface. A penetrating sealer helps the surface, allowing any substances, including oil and water, to run off properly.
Surface Material Protection: And not just concrete, a premium quality penetrating sealer can protect any porous surface material in various ways. The excessive porosity of concrete or any other material causes damage due to moisture, dirt, or seeping in. It can also end up causing aesthetic damage to any porous surface in and around your property, like the development of stains. As penetrating sealers reduce the amount of water or oil penetrating the porous surface, it protects the material significantly.
Different penetrating sealer types
Fluorinated is typically more expensive and less available, even though many consider them more effective.
Siliconates –This prevents the long term resistance against excessive oil or water absorption to offer excellent protection to porous surfaces.
Siloxanes –This is a cost-effective solution, but it has larger particles that are not particularly suited for deep penetration inside porous surfaces.
Silicates –Silicates have longer life spans, offer reliable protection against oil and water, and effectively improve the concrete's shine.
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