Div. 03930

REZI-WELD LV

Specification

NO. 392

REZI-WELD™ LV

LOW VISCOSITY INJECTION EPOXY
Provides a low-viscosity, easy-flowing injection epoxy in a unique, unitized package.

SEALTIGHT REZI-WELD LV Low Viscosity Injection Epoxy is a two-component, easy-flowing, low-viscosity structural epoxy adhesive suitable for pressure injection of cracks, and as a binder for a wide variety of maintenance, repair and concrete rehabilitation patching and grouting applications.

Technical Description
SEALTIGHT REZI-WELD LV Low Viscosity Injection Epoxy is 100% solids, moisture insensitive, very low viscosity, high modulus, and high strength structural injection resin. REZI-WELD LV is V.O.C. compliant and resists most chemicals.

REZI-WELD LV features a unique and innovative unitized packaging concept. It combines two color-coded, pre-measured, components into an easy-to-handle, single unit along with a handy, wood mixing paddle. The unitized packaging eliminates mishandling and mismatching of the components on the jobsite.

Uses
REZI-WELD LV is designed for gravity feeding or pressure injecting using two-component metering systems, hand-held bulk guns or pressure pots. It is suiable for injecting fine, non-moving structural cracks for permanent repairs.

When mixed with sand or aggregates REZI-WELD LV makee an economical, easy-to-use epoxy mortar for patching or repairing defects in concrete substrates, securing machinery base plates to concrete floors, interior non-skid pathways and structural bonding applications.

Advantages and Benefits

• Ideal for pressure injection and gravity feeding
• Advantageous as a low viscosity, epoxy adhesive binder
• Bonds cured concrete, wood, plastic or metal to concrete
• Combines with aggregate to form interior non-skid pathways
• Resists industrial chemicals as well as impact and attack from moisture
• Features low-viscosity, high-modulus, high-strength, self-leveling characteristics
• VOC-compliant
• Furnished in unitized packaging
• Can be extended with sand for other uses

Application Tools

Electric Drill with Jiffy Blade

Injection Pump

Roller

Application
SURFACE PREPARATION: All surfaces to be bonded must be free of standing water and completely clean of dirt, rust, curing compounds, grease, oil, paint, waxes and other materials which would prevent a maximum bond.

Concrete should be cleaned by mechanical abrading or sandblasting to a sound surface. Vacuum or blow dust away with compressed air. Mechanically abrade metal base plates to a bright metal finish.

Exposed steel surfaces should be sandblasted and vacuumed clean; if not possible, degrease the surface and use sandpaper or a wire brush to reveal continuous, bright metal.

MIXING NOTE: Condition all components to 60-85ºF for 24 hours prior to use. Pre-mix each component. Mechanically mix at slow speed (600-900 rpm) using a drill and Jiffy Blade or drum mixer to 3 minutes or until completely mixed while scraping the sides to ensure complete blending of components. Avoid air entrapment. Mix only very small quantities by hand for a minimum of 3 minutes or until sufficiently blended together using the supplied stirring stick. Scrape the sides of the container to ensure complete blending of components. Mix only the amount of epoxy that can be applied within the product's potlife. Potlife will decrease as the ambient temperature and/or mass size increases.

INJECTION: Epoxy can be gravity fed into horizontal cracks that are small, (1/4" [6.35mm] maximum width) and have a limited depth. For large injection projects, a self-proportioning, mixing and pressure injection equipment is recommended. For small injection projects, SEALTIGHT REZI-WELD RAPID SET PRE-PAK self-contained, barrier-type cartridge may be suitable.

INTERIOR, NON-SKID PATHWAYS: For thin applications, apply at a rate not to exceed 110 ft.² per gallon (2.70m²/liter). For heavy coverage, apply layer of sand or grit over epoxy and allow to set. Blow excess sand away. NOTE: REZI-WELD LV IS NOT TO BE USED AS A FINISHED FLOOR COVERING OR PROTECTIVE TREATMENT.

AGGREGATES FOR EPOXY-RESIN MORTARS: Combine clean, dry aggregates with freshly mixed epoxy in a ratio of 1 part epoxy to 1 to 4 parts, by volume, of graded aggregates. Patch thickness should not exceed 1-1/2" (38.1mm) per lift.

CLEANUP: Clean tools and equipment immediately with Toluene avoiding heat, sparks, open flame, breathing vapors or allowing epoxy-containing solvent to contact skin. Never wash hands with solvent.

Packaging
1 quart (.95 liter) Units
1 gallon (3.79 liter) Units
15 gallon (56.85 liter) Units

Specifications
ASTM C 881, Type I, II, IV and V Grade 1, Class B & C
AASHTO M 235 Type I, II, IV and V, Grade 1, Class B & C
USDA Accepted

Shelf Life
Two years in unopened, damage-free containers stored in a dry environment between 40º and 95ºF (4º and 35ºC).

Coverage
One gallon (3.8 liter) neat covers approximately 85-110 ft.² (2.09-2.70 m²/liter) depending on the surface porosity and end use application. One gallon (3.8 liters) mixed 1:1 with dry aggregate yields approximately 350 in.³ (5.135.45cm³) of grout.

Precautions
DO NOT DILUTE. Mix complete units only. The epoxy must be between 60º and 85ºF (16 and 29ºC) at time of mixing. Warm by placing containers into hot water. The preferred method is to store the epoxy in a warm room prior to use. Surface substrate temperature must be between 40º and 90ºF (4 and 32ºC). Do not seal cracks while under hydrostatic pressure.

REZI-WELD LV is not to be used as an exterior coating as it is not resistant to ultraviolet rays. This epoxy is corrosive. Personal protective equipment is necessary. Unused epoxy will generate excessive heat, especially in large quantities. Unused epoxy should be mixed with dry sand in the container to help lower the heat. Read and follow application information, precautions and Material Safety Data information.

Technical Data

Component Properties	Resin	Hardener
Mix Ratio (PBV=Part by Vol.) Appearance Density, lbs./gal. (kg/liter) Viscosity, cps Final Color Pot Life (1 gal. unit) @ 77ºF (25ºC)	2 PBV Clear 9.6 (1.15 kg/liter) 2,000 (mixed) Light amber (mixed) 40 mins.	1 PBV Amber 8.2 (.98 kg/liter)

PHYSICAL PROPERTIES

Property 7 Day Cure @ 77ºF (25ºC)	Typical Data	Test Method
Tensile Strength, psi Elongation, % Hardness, Shore D Flexural Strength, psi Flexural Modulus, psi Compressive Yield Strength, psi Compressive Modulus, psi Bond Strength, psi (2 days) Bond Strength, psi (14 days) Absorption, % (24 hours) Linear Coefficient of Shrinkage	7,000 (41.4 MPa) 1.6 85 11,000 (75.9 MPa) 52,000,000 (360,000 MPa) 11,000 psi (82.8 MPa) 260,000 (1,800 MPa) 2,500 (17.25 MPa) 3,200 (22.08 MPa) 0.13% 0.004	ASTM D 638 ASTM D 638 ASTM D 2240 ASTM D 790 ASTM D 790 ASTM D 695 ASTM D 695 ASTM C 882 ASTM C 882 ASTM D 570 ASTM D 2566

Div. 03930

REZI-WELD LV

Specification

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W. R. MEADOWS, INC. warrants that, at the time and place we make shipment, our materials will be of good quality and will conform with our published specifications in force on the date of acceptance of the order. THE FOREGOING WARRANTY SHALL BE EXCLUSIVE AND IN LIEU OF ANY OTHER WARRANTY, EXPRESS OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AND ALL OTHER WARRANTIES OTHERWISE ARISING BY OPERATION OF LAW, COURSE OF DEALING, CUSTOM OF TRADE OR OTHERWISE. As the exclusive remedy for breach of this Warranty, we will replace defective materials, provided, however, that the buyer examine the materials when received and promptly notify us in writing of any defect before the materials are used or incorporated into a structure. Three (3) months after W. R. MEADOWS, INC. has shipped the materials, all our Warranty and other duties with respect to the quality of the materials delivered shall conclusively be presumed to have been satisfied, all liability therefore terminates, and no action for breach of any such duties may thereafter be commenced. W. R. MEADOWS, INC. shall in no event be liable for consequential damages. Unless otherwise agreed to in writing, no warranty is made with respect to materials not manufactured by W. R. MEADOWS, INC. We cannot warranty or in any way guarantee any particular method of use or application of the performance of materials under any particular condition. Neither this Warranty nor our liability may be extended or amended by our salesmen, distributors or representatives, or by our distributor's representatives, or by any sales information or drawings.