| 03 63 00 |
No. 391-S |
 |
|
DESCRIPTION
REZI-WELD GEL PASTE STATE is
a high viscosity, rapid-setting, thixotropic, structural, epoxy-based,
chemical anhoring/bonding adhesive and injection resin. REZI-WELD
GEL PASTE STATE provides high mechanical properties and bond strength
to concrete and various other substrates. REZI-WELD GEL PASTE
STATE is a two-component, moisture insensitive construction epoxy,
which can be troweled, brushed, injected or pumped.
REZI-WELD GEL PASTE STATE is an easy-to-mix, easy-to-apply paste, ideal for filling cracks, anchoring, doweling, making small patches and general repairs in horizontal, vertical and overhead concrete surfaces. It is also suitable for surface sealing prior to pressure injection. When used as an adhesive, REZI-WELD GEL PASTE STATE fills all voids between the surfaces to be bonded.
| TEST METHOD | RESULTS |
| Consistency: (Per ASTM C 881) | PASS |
|
Slant Shear Bond Strength: (Per ASTM C
882) @ 2 Days @ 14 Days |
3,000 PSI (19.3 MPa) 3,800 PSI (20.7 MPa) |
| Absorption: (Per ASTM D 570) | 0.84% |
| Heat Deflection Temperature: (Per ASTM D 648) | 125ºF (51.7ºC) |
| Linear Coefficient of Shrinkage (Per ASTM D 2566) | 0.0007 |
|
Compressive Yield Strength: (Per ASTM D
695) @ 7 Days |
10,500 PSI (72.4 MPa) |
|
Compressive Modulus: (Per ASTM D 695) @ 7 Days |
500,000 PSI (3,448 MPa) |
| * All technical data is typical information, but may vary due to test methods, conditions and operators. | |
| Color: |
PART A...White PART B...Black |
| Mix ratio: | 1:1 By Volume |
| Pot life: | 5-10 Minutes at 77ºF |
| Cure time: | 7 Days at 77ºF |
| Shelf life: | 1 Year in unopened container |
| Coverage: |
20 oz. (591ml) Cartridge yields 36.1 cubic
inches 1 Gallon Neat yields 231 cubic inches |
SPECIFICATIONS
|
(For cartridge mixing and application instructions, see instruction sheet included inside the cartridge packaging unit.)
Mixing (Bulk units)...Condition all components to 60º-85ºF 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 (600-900rpm) 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. The mixed product should be uniform gray in color and not show streaks. 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 the 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.
METAL ANCHORS IN PREFORMED HOLES IN CONCRETE...Preformed holes should be approximately ¼" (6.35mm) larger in diameter than the anchor bolt diameter. The depth of the hole should be 10-15 times the bolt diameter. Fill the hole from the bottom up, about half way with mixed epoxy and place the bolt, dowel or rebar. Top off with more epoxy and finish. All anchoring and doweling configurations must be approved or designed by an engineer.
CRACKS IN VERTICAL OR OVERHEAD STRUCTURES...For non-moving cracks and joints, use a trowel
to apply the paste full depth and strike off flush at the surface
in a single pass. For structural crack injection repairs, use
a dual-component gel pump.
PATCHES IN CONCRETE STRUCTURES...GEL PASTE STATE
makes a high-strength material for patching, topping, grouting
and repairing spalls and other defects in concrete. Average thickness
of the patch or topping should be no greater than ¼ to
½" (6.35 to 12.7mm) per lift, not to exceed 1 ½".
SURFACE SEALING...Apply mixed epoxy over entire length of crack to be pressure injected. Ensure complete coverage to avoid leaking. Adjacent concrete surfaces must be mechanically abraded to ensure a proper bond. Allow for suitable cure time prior to injecting.
BONDING FRESH CONCRETE TO HARDENED
CONCRETE OR HARDENED CONCRETE TO HARDENED CONCRETE...Use a stiff masonry brush to apply a layer of
mixed epoxy to concrete surfaces. Application rate should be 85-100
square feet per gallon. Place fresh or hardened concrete to mixed
REZI-WELD GEL PASTE STATE prior to epoxy becoming tack-free. If
REZI-WELD GEL PASTE STATE becomes tack free prior to application
of fresh or hardened concrete, consult a W. R. MEADOWS representative.
NOTE: Cured concrete is defined as concrete that has achieved
a minimum 80 percent of designed compressive strength.
OTHER BONDING…To bond metal to concrete, apply
a layer of the adhesive [at 85-100 square feet per gallon (20
mils)] to the prepared surface and join immediately. Clamping
pressure, beyond what will hold parts in place, is not necessry.
SURFACE SEALING…Apply mixed epoxy over entire length of crack to be pressure injected. Ensure complete coverage of the crack face to avoid leaking. Adjacent concrete surfaces must be mechanically abraded to ensure a proper bond. Allow for suitable cure time prior to injecting.
Clean up...Clean
tools and equipment immediately with Toluene or Xylene. Clean
equipment away from all ignition sources. Avoid breathing vapors
or allowing epoxy-containing solvent to contact skin. Should this
material come in contact with the skin, wash thoroughly with soap
and water, not solvent.
PRECAUTIONS
DO NOT DILUTE. Mix complete units only. Not recommended for use
when the concrete temperature has been below 40°F (4°C)
for the past 24 hours. Do not seal cracks under hydrostatic pressure.
Do not warm epoxy over direct heat.
SAFETY AND TOXICITY
Unused epoxy will generate excessive heat, especially in large
quantities. Unused epoxy should be mixed with dry sand in the
container to help lower heat. Refer to Product Material
Safety Data Sheet for complete health and safety information.
This material last updated April, 2004.
