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   Urethane Grouts - Overview

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Strata-tech has more varied urethane grouts for more applications than any other grout source on the planet. Because of that, grouting people come to strata-tech.com with a variety of questions about grouts from quite a few different points of view. General information to help you understand our materials and how they relate to each other is shown below.

Click on a product name for detailed information that includes: product profile, video clips showing the
grout solid as it forms, summary of common uses, tech data sheet, extended applicator information, & MSDS.

The grouts available on Strata-tech.com can be placed in one of five categories according to the type of solid each one forms when it sets. The five types of solids are Flexible Foams, Flexible Gels, Flexible Solids, Rigid Foams, and Rigid Solids. In addition, a useful category called Support Products includes important materials which are added to and used with grouts but are not grouts themselves. And, finally, a discussion of Grout Cleaners is important to each category and applies to all six.

Flexible foams are urethane grouts which react with water to expand and set into a solid which can stretch, twist, and compress to a considerable degree without breaking. The members of the flexible foam group include ST 504 Veri-Lok Injection Resin, ST 520 Poly-Foam Injection Resin, ST 524 Poly-Foam Active Injection Resin, and ST 526 Poly-Foam Ultra Injection Resin.

Flexible gels are urethane grouts which combine with large amounts of water to become solids often described as being vaguely similar in appearance to an American dessert product called Jello Gelatin Desert. The members of the Flexible Gel Group are ST 504 Veri-Lok Injection Resin and ST 512 Veri-Gel Injection Resin. Yes, ST-504 is also shown in the Flexible Foam Group above. ST-504 is unique with respect to its membership in two categories because it can form a solid with varying properties depending on the amount of water with which it combines.

Quick List

Flexible solids are three-component urethane grout injection systems with low viscosities and controlled set times which tolerate wet and dirty surfaces and neither expand nor shrink as they set into hard rubber-like solids The members of the Flexible Solids Group are ST 540 Flex-Rok Injection Resin and ST 545 Flex-Rok Injection Resin.

Rigid foams are urethane grouts which expand and set into a solid which will support a substantial load without compressing or breaking. At the initiation point of the expansion process, some of these materials react with water and some do not depending upon their formulation and their designed work purpose. The members of the Rigid Foam Group are ST 530 Quik-Rok Injection Resin, ST 536 Poly-Foam Void Filling Resin, and ST 536 Poly-Foam ES Void Filling Resin.

Rigid solids are two-component urethane grout systems with low viscosities and controlled set times which neither expand nor shrink as they set into very hard non-flexible solids with glue-like properties and very high compression strengths. The members of the Rigid Solids group are ST 534 Lock-Rok Injection Resin and ST 538 Bed Rock Injection Resin.

Support Products are materials which are added to and used with grouts but are not grouts themselves. , for instance, ST 591 Fibrotite Oakum is an integral part of the Activated Oakum Process.

Grout Cleaners are the materials used to help with the removal of all product from the various parts of the grout system and its ancillary areas, including tools. Urethane grouts and injection resins take different forms depending upon whether they are liquids or solids. The solidified resins are removed from pump systems, parts, and tools by ST 522 Veri-Kleen Grout Cleaner. The liquid forms of the resins are cleaned with solvents or solvent substitutes. Examples of solvents used would include acetone, methyl ethyl ketone, xylene, or similar products. An effective solvent substitute would be Strata-techs ST 590 Kleen-Purge Flushing agent. A third cleanup procedure is technically not cleaning at all, but rather, involves displacing or pushing out of grout from the system using ST 592 Displacement Fluid.

Please note. Strata-tech believes that the information herein is an accurate description of the general properties and characteristics of the product(s), but the user is responsible for obtaining current information because the body of knowledge on these subjects is constantly enlarged. Also, the information herein is not necessarily the latest or most complete information available. All information herein is subject to change without notice. Field conditions also vary widely, so users must undertake sufficient verification and testing of any product or process herein to determine performance, safety, usefulness, and suitability for their own particular use.

Strata Tech warrants only that the product will meet Strata Techs then-current specification. NO WARRANTY OF SUITABILITY OR FITNESS FOR A PARTICULAR PURPOSE IS MADE. Users should not assume that all safety requirements for their particular application(s) have been indicated herein and that other or additional actions and precautions are not necessary. Users are responsible for always reading and understanding the Material Safety Data Sheet, the entire body of the product technical literature, and the product label before using any product or process mentioned herein and for following the instructions contained therein.

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