Inorganic Silicate Concrete Densifier
Common Product
MasterFormat 03 35 00 Concrete Finishing; 03 35 43 Polished Concrete Finishing

This information reflects our best understanding of product composition in 2021.

Concrete densifiers are applied to concrete to penetrate and fill pores and voids through a process of crystalline growth. They react with calcium hydroxide in the concrete or carbon dioxide in the air to create a precipitate that prevents water...

More about Inorganic Silicate Concrete Densifier

Concrete densifiers are applied to concrete to penetrate and fill pores and voids through a process of crystalline growth. They react with calcium hydroxide in the concrete or carbon dioxide in the air to create a precipitate that prevents water penetration and prevents the formation of dust on the surface. This reaction differs from that of penetrating concrete sealers, because although it physically prevents water penetration it is not designed to make the substrate water-resistant. Furthermore, when concrete densifiers react with concrete they do not release volatile organic compounds (VOCs) like penetrating concrete sealers do. 

Concrete densifiers are based on several different inorganic silicate chemistries and include sodium silicate, potassium silicate, lithium silicate, magnesium silicate, magnesium fluorosilicate, and colloidal silica formulations. This Common Product describes a lithium silicate concrete densifier. Lithium silicate concrete densifiers are typically applied to concrete with a sprayer, and can be applied before a concrete sealer is applied. Coverage varies widely depending on the porosity of the concrete. These products are seen as advantageous over potassium and sodium silicate formulations because they can prevent alkali-silica reactions (ASR). ASR occurs in the presence of water in high pH environments where hydroxyl ions from hydraulic cement react with silica-based rocks and minerals present in some aggregates, which can lead to expansion and cracking of the concrete. 

Concrete densifier formulations are relatively simple, but they can contain additives in addition to water and the inorganic silicate. Some products add silicone-based water repellents, but these were not found to be common. Other products indicate that a wetting agent (also referred to as a surfactant) is used to allow for deeper penetration of the densifier into the pores of the concrete. There is very little disclosure on what type of surfactants are used, but patents for some product formulations indicate that fluorinated surfactants, silocone-based surfactants, and alkyl phosphates could be present in some products.

Name % Wt Whole Function GS Score Sources
Water
7732-18-5
88.82% Diluent Subscribe to view
Silicic acid, lithium salt
12627-14-4
11.10% Densifier Subscribe to view
PERFLUORINATED ALKYL SUBSTANCES (PFAS), SHORT-CHAIN
0.08% Surfactant Subscribe to view
Name % Wt Part % Wt Whole Function GS Score Sources
Water
7732-18-5
88.82% 88.82% Diluent Subscribe to view
Silicic acid, lithium salt
12627-14-4
11.10% 11.10% Densifier Subscribe to view
PERFLUORINATED ALKYL SUBSTANCES (PFAS), SHORT-CHAIN
0.08% 0.08% Surfactant Subscribe to view

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Known or Potential Residuals
Known or Potential Residuals for Chemical
CASRN NAME GS SCORE TYPE FREQUENCY % WT CHEM % WT PRODUCT SOURCE
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Other Process Chemicals
CASRN NAME GS Score TYPE FREQUENCY % WT CHEM % WT PRODUCT SOURCES
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HBN Resources (2)
HBN Resources for Product
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Tool HBN's Transformation Targets: A Framework for Driving Market Change
Article Could Chemical Exposures Increase Your Chance of Catching a Cold?
Sources
Sources for Common Product Data
Source Uploaded Document Linked Document
Arris US9579764B1
Ashford Formula Brochure
Ashford Formula HPD
Ashford Formula SDS
Ashford Formula TDS
CheMondis 16871-90-2
Chemtech One SDS
Chemtech One TDS
CN101407428A
CN106083191B
Concrete Construction 20090207
Concrete Sealers USA Blog 20162604
Consolideck LS HPD
Consolideck LS SDS
Consolideck LS TDS
Deep Penetrating Concrete Sealer FAQs
Deep Penetrating Concrete Sealer SDS
Duro-Nox LS PDS
EPA 560_5-78-001
Euco Diamond Hard HPD
Euco Diamond Hard SDS
Euco Diamond Hard TDS
FHWA-HRT-06-133
LD 1800 SDS - 2010
LithiPro LP SDS
Lithipro LP webpage
LM Seal Hard HPD
LM Seal Hard SDS
LM Seal Hard TDS
Ludox HSA SDS
Lythic Densifier HPD
Lythic Densifier SDS
Lythic Densifier TDS
Mondragon-Gutierrez 2008
Nanotech US20120015199A1
Niaproof 08 SDS
Pentra-Sil SDS
Pentra-Sil TDS
PFBS - Michigan
PS103 SDS
PS103 TDS
Starseal Lithium S+ SDS
Starseal Lithium S+ TDS
Starseal Protect MFS SDS
Starseal PS Clear SDS
TEGO WET KL 245 SDS
TSD Chapters_5_8
US20190299353A1
US6749679B2