O'Brill Company

Construction Specialty Suppliers

       6626 N. Milwaukee Ave.

Niles, IL 60714

773-775-1122 or 847-647-0005

FAX 847-647-7819

Since 1967

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Rezi-Weld LV




NO. 392


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.

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

bulletIdeal for pressure injection and gravity feeding
bulletAdvantageous as a low viscosity, epoxy adhesive binder
bulletBonds cured concrete, wood, plastic or metal to concrete
bulletCombines with aggregate to form interior non-skid pathways
bulletResists industrial chemicals as well as impact and attack from moisture
bulletFeatures low-viscosity, high-modulus, high-strength, self-leveling characteristics
bulletFurnished in unitized packaging
bulletCan be extended with sand for other uses

Application Tools

Electric Drill with Jiffy Blade

Injection Pump



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 60-85F 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. per gallon (2.70m/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.


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

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 40 and 95F (4 and 35C).

One gallon (3.8 liter) neat covers approximately 85-110 ft. (2.09-2.70 m/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. (5.135.45cm) of grout.

DO NOT DILUTE. Mix complete units only. The epoxy must be between 60 and 85F (16 and 29C) 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 40 and 90F (4 and 32C). 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.)
Density, lbs./gal. (kg/liter)
Viscosity, cps
Final Color
Pot Life (1 gal. unit) @ 77F (25C)
9.6 (1.15 kg/liter)
2,000 (mixed)
Light amber (mixed)
40 mins.
8.2 (.98 kg/liter)

7 Day Cure @ 77F (25C)
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)
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)
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

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.

Home Up 1100 - Clear Series 1200 - White 1300 - Clear 1600 - White 164 588 Precision Grout Ceramar Cera-Rod CG-86 Control Joints CS-309-25 CS-309-30 Deck-O-Foam Direct Fire Parking Sealant Duogard Duogard II Evapre Expo-Gloss Fibre Expansion Joint Gardox Hi-Spec Hydraset Hydraset-Free Intralok Lin-Seal Lin-Seal Emulsion Lin-Seal White Liqui-Hard Meadow-Plug Med-Cure Mel-Dek Mel-Drain DB Mel-Gard Melnar Mel-Prime SB VOC Mel-Prime WB Mel-Rol Pac-It Plastic Joint Materials Pourthane Premoulded Membrane Premoulded Tongue and Groove Protection Course PVC Waterstops Red Rosin Paper Rezi-Weld 1000 Rezi-Weld 3-2 Rezi-Weld Gel Paste State Rezi-Weld Gel Paste Rezi-Weld LV Rezi-Weld Rapid Set Roof Traffic Pads Sealex Sealmastic Sealmastic Emulsion Sealtight 1190 Sealtight 158 Sealtight 3405 Sealtight Acry-Lok Sealtight Air-Shield Sealtight CR-90 Sealtight Deck-O-Seal Sealtight Futura-15 Sealtight Kool-Rod Sealtight Meadow-Crete FNP Sealtight Meadow-Crete GPS Sealtight Meadow-Crete H2 Sealtight Meadow-Patch 20 Sealtight Meadow-Patch 5 Sealtight Meadow-Patch T1 Sealtight Meadow-Patch T2 Sealtight Patch-Prime Sealtight Poly-Grip Sealtight Poly-Jet 1614 Sealtight Poly-Jet 200-E Sealtight Poly-Jet 3406 Sealtight Premoulded Membrane Sealtight Rezi-Weld Flex Sealtight Safe-Seal 3405 Sealtight Sealex E-Z Sealtight Ultrite Degreaser Sealtight Seal Cure CS-309-25 Sewer Joint Sof-Seal Tiah Vibraflex Vocomp-20 Vocomp-25 Vocomp-30

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Copyright 2002 O'Brill Company
Last modified: August 09, 2004