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No. 392 |
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LOW VISCOSITY INJECTION EPOXY
Description
REZI-WELD LV Low Viscosity
Injection Epoxy is moisture insensitive, very low viscosity, high
modulus, and high strength structural injection resin. REZI-WELD
LV resists most chemicals and features a unique and innovative
unitized packaging concept. It combines two 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
suitable for injecting fine, non-moving structural cracks for
long-term repairs. When mixed with sand or aggregates REZI-WELD
LV make 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.
Features and Benefits
Specifications
|
Packaging
1 quart (.95 liter) Units
1 gallon (3.79 liter) Units
15 gallon (56.85 liter) Units
Shelf Life
One year in unopened, damage-free containers stored
in a dry environment between 40º and 95ºF (4º and
35ºC).
TECHNICAL DATA*
|
Property 7 Day Cure @ 77ºF (25ºC) |
Typical Data | Test Method |
| Tensile Strength, psi | 7,000 (48.3 MPa) | ASTM D 638 |
| Elongation, % | 1.6 | ASTM D 638 |
| Hardness, Shore D | 85 | ASTM D 2240 |
| Flexural Strength, psi | 8,000 (55.2 MPa) | ASTM D 790 |
| Flexural Modulus, psi | 520,000 (3,585 MPa) | ASTM D 790 |
| Compressive Yield Strength, psi | 12,000 psi (82.7 MPa) | ASTM D 695 |
| Compressive Modulus, psi | 260,000 (1,800 MPa) | ASTM D 695 |
| Bond Strength, psi (2 days) | 2,500 (17.25 MPa) | ASTM C 882 |
| Bond Strength, psi (14 days) | 3,200 (22.08 MPa) | ASTM C 882 |
| Absorption, % (24 hours) | 0.13% | ASTM D 570 |
| Linear Coefficient of Shrinkage | 0.004 | ASTM D 2566 |
| Component Properties | Resin | Hardener |
|
Mix Ratio (PBV=Part by Vol.) Appearance Wt./gal, lbs./gal. (Kg/L) |
2 PBV Clear 9.6 (1.15 Kg/L) |
1 PBV Amber 8.2 (.98 Kg/L) |
|
Final Color Pot Life (1 gal. unit) @ 77ºF (25ºC) Viscosity, cps |
Light amber (mixed) 30 mins. 2,000 (mixed) |
|
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 an optimal
bond. Concrete should be cleaned by mechanical abrading or sandblasting
to a sound surface. Vacuum or blow dust away with oil-free 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...Condition all components to 60ºF to 85ºF (16ºC to 29ºC) for 24 hours prior to use. Use the double boiler method, or store material in a warm room, prior to application. Pre-mix each component. Mechanically mix at slow speed (600-900 rpm) using a drill and Jiffy® Blade or drum mixer for 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 pot life. Pot life will decrease as the ambient temperature and/or mass size increases.
CRACK INJECTING...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, REZI-WELD (IP) Injection Pre-Pak, self-contained, barrier-type cartridge may be suitable.
INTERIOR, NON-SKID TOPPING...Apply at a rate not to exceed 100 sq. ft. per gallon (2.66 sq. m/L). Then 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 (not to exceed 6 parts sand). Patch thickness should not exceed 4" (101.6mm) per lift.
Clean Up...Clean tools and equipment immediately with Toluene or Xylene. Clean equipment away from all ignition sources and avoid breathing vapors or allowing epoxy-containing solvent to contact skin. Should this material come in contact with skin, wash thoroughly with soap and water, not solvent.
Coverage
One gallon (3.8 liter)
neat covers approximately 85-100 sq. ft. (2.09-2.66 sq. m/L) depending
on the surface porosity and end use application. One gallon (3.8
liters) mixed 1:1 with dry aggregate yields approximately 350
cu. in. (5,735 cu. cm) of grout.
Precautions
DO NOT DILUTE. Mix complete
units only. Not recommended for use when the concrete temperature
has been below 40º F (4ºC) for the past 24 hours. Do
not use to seal cracks under hydrostatic pressure. Do not warm
epoxy over direct heat. REZI-WELD LV is not to be used as an exterior
coating, as it is not resistant to ultraviolet rays.
Health Hazards
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.
Refer to material safety data sheet
for complete health and safety information.
This material last updated April, 2004.
