Low Viscosity High Strength Injectable Grout

Hind ERS 21 is a two component solvent free low viscous fast curing epoxy resin system comprising ofcomponent A (Resin) and component B (curing agent). It is designed especially for pressure injection intoconcrete for carrying structural repairs. Hind ERS 21 is supplied in pre-measured quantities and conforms toBS-6319.USESHind ERS 21 is ready to use for pressure injection into concrete for structural repairs. The system possess theproperties like low viscosity non-shrink free flowing and pourable hence it find various usages in sealing ofcrack through injection operation in expansion joint floor joint pavement joint etc.ADVANTAGESHind ERS 21 is very useful in concrete such as It can be injected into extremely fine cracks and small cavities. It has high compressive strength tensile and flexural strength. Excellent bonding and adhesion. No shrinkage during curing. Like all epoxy resin system it has high chemical resistance. Cured material is not brittle and remains slightly flexible. Reduce thermal expansion co efficient thus improves thermal conductivity.APPLICATIONSurface Preparation: Before application surface preparation is important surface should be cleaned dry freefrom loose particles oil grease or other foreign materials injection nipples are fixed in a square grid maximum500 to 800 mm c/c depending on the cracks and nature of concrete if required for effective treatment the gridmay be reduced. Before the injection starts all cracks and crevices are to be sealed with Hind ERS 21 mortarand surface sealing is to be done for other porous areas.Mixing:Mix 1 part by wt of component B with 2 parts by wt of component A i.e. Mixing Ratio = Component A:Component B = 2:1 (by wt). Mix at least 5 minutes to uniform color without any steak using a drill and paddlemixed (speed 200 RPM) so as to avoid any entrapped air. Comp B is to be poured in Comp A and stirred gently.Injection: The grout mixture should be pumped by a positive displacement plunger type pump. Inject at slowand even pressure through the injecting nipples till refusal or when the grout oozes out from nipple immediatelyadjacent to or above the one being injected.Cleaning:Clean all tools & equipment immediately after use with Xylene Toluene or suitable solvent.PROPERTIESAspect                                                                                                                   Light amberMixed ratio                                                                                                            Comp A: Comp B = 2:1 (by wt)Density                                                                                                                 1070 to 1090 kg/ m3Pot life                                                                                                                  60 minutes at 27 CCompressive strength at 27 C                                                                             35N/ mm2 (min) in 24 hrs.                                                                                                                             80 N/ mm2 (min) in 7 days.Tensile strength at 27 C                                                                                      15 - 20 N/ mm in 7 days.Flexural strength 27 C                                                                                        30 - 40 N/ mm in 7 days.Shrinkage                                                                                                             Practically no shrinkage.Chemical resistance                                                                                              Chemically resists by wide range of chemicals and oils.PACKING3 6 12 Kg Kit or as required.SHELF LIFE12 months if it is in unopened condition. Should be stored in a cool dry place away from direct sunlight.HANDLING PRECAUTIONHind ERS 21 is non-toxic but ingestion is to be avoided. Any splashes to the skin must be washed with water. Ifcontact with eyes occurs wash well immediately with water and seek medical advice.