 |
|
|
|
|
|
|
 |
 |
|
||||
 |
 |
 |
 |
 |
|
|
 |
|
|||||
|
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
 |
|
Div.
03930 |
|
|
Specification NO. 390
REZI-WELD™ 1000
MULTI-PURPOSE CONSTRUCTION EPOXY
Description
SEALTIGHT REZI-WELD 1000 is a medium
viscosity, two-component, construction grade structural epoxy adhesive.
It is moisture insensitive and chemical resistant. High modulus, high
strength REZI-WELD 1000 is color coded to assure proper mixing, self-leveling
and easy to apply.
As a neat mix, REZI-WELD 1000 is used to bond fresh concrete to fresh or old concrete and to bond metals and other materials to hardened concrete. REZI-WELD 1000 is also used to secure metal anchors, bolts, rebars and dowels in concrete.
Mixed with sand or aggregates, REZI-WELD 1000 may
be used to patch spalls or defects in concrete. A thin film coating sprinkled
with sand or grit, becomes a durable, non-skid pathway.
Features and Benefits
- Offers high-modulus, high-strength and self-leveling characteristics
- Resists many industrial chemicals and is moisture insensitive
- Easy-to-apply…VOC compliant
- Furnished in unique, color-coded, unitized, pre-measured packaging to assure proper mixing…eliminates mishandling and mismatching components
- May be extended with sand or aggregates to patch minor spalls and defects in concrete
- Provides a non-skid interior or exterior pathway when sprinkled with sand or grit
- Furnished in unique, color-coded, unitized, pre-measured packaging to assure proper mixing eliminates mishandling and mismatching of components
Specifications
ASTM C 881, Type I, II, IV &
V, Grade 2, Classes B & C
AASHTO M 235, Type I, II, IV & V, Grade 2, Classes B & C
USDA Accepted
Packaging
1 Quart (.95 Liter) Unit
1 Gallon (3.79 Liter) Unit
2 Gallon (7.58 Liter) Unit
10 Gallon (37.9 Liter) Unit
| Color: | Part A…White |
| Part B…Black | |
| Mix ratio: | 1:1 by volume |
| Pot life: | 45 minutes at 77 °F |
| Cure time: | 7 days at 77 °F |
| Shelf life: | 2 years in unopened container |
| Storage: | 40-95 °F (4-35°C) |
| Coverage: | 1 gal. neat yields 231 cubic inches |
APPLICATION
FOR INDUSTRIAL AND PROFESSIONAL USE ONLY
Surface Preparation… Mechanically abrade all
surfaces to be bonded. All surfaces to be bonded must be free of standing
water and completely clean of dirt, rust, curing compounds, grease, oil,
paint and unsound materials which would prevent a solid bond. Vacuum or
blow dust away with oil-free, compressed air. Smooth surfaces require
sanding or other mechanical abrasion. 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 60-85° F for 24 hours prior
to use. 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 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.
BONDING FRESH CONCRETE TO HARDENED CONCRETE...Use a stiff brush to apply a layer of mixed epoxy to concrete
surface. Spread a thin, uniform coating at a rate of 85 to 110 square
feet per gallon, not to exceed 1/4" in thickness. Place fresh concrete
as soon as possible after applying the adhesive. If epoxy becomes tack-free,
consult a W.R. MEADOWS, INC. representative.
OTHER BONDING...To bond cured concrete or metal to concrete, apply
a layer no less than a 1/64" (.40mm) to the prepared surface and
join immediately. Clamping pressure, beyond what will hold parts in place,
is not necessary.
AGGREGATES FOR EPOXY-RESIN MORTARS...Combine clean, dry aggregates
to freshly mixed epoxy in ratio of one part epoxy to one to four parts
of dry, clean graded aggregate by volume. A rotary drum mixer with a stationary
paddle is recommended for blending aggregates and epoxy. Apply a thin
coating of aggregate-free epoxy to the prepared surface as a primer. Patch
thickness should not exceed 1-1/2" (38.1mm) per lift.
METAL ANCHORS IN PREFORMED HOLES IN CONCRETE...Preformed holes should be approx. ¼" (6.35mm) larger
in diameter than the anchor bolt diameter. The depth of the hole should
be 10-15 times the bolt diameter. Consult Engineer for job specification
requirements. 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.
INTERIOR NON-SKID PATHWAYS...Apply mixed epoxy at a rate not to
exceed 80 square feet per gallon. Spread sand thinly over wet epoxy and
embed the grains with a mohair roller. For heavy coverage, apply a layer
of sand or grit over the epoxy and allow it to set. Blow excess sand away.
NOTE: REZI-WELD 1000 IS NOT TO BE USED AS A FLOOR COVERING OR PROTECTIVE
TREATMENT.
TECHNICAL DATA
| Test Method | Actual | Required per ASTM C 881-99, TYPE IV |
| Gel Time
Per ASTM C 881-99¹ Viscosity Per ASTM D 2393 Mixed |
37 minutes
3,500 cps |
Minimum 30
minutes Maximum 10,000 cps |
| Compressive Strength Per
ASTM D 695-96 @ 1 day @ 7 days¹ |
10,000
psi (70 MPa) 12,500 psi (79 MPa) |
Not Required Minimum 10,000 psi (70 MPa) |
| Compressive Modulus Per
ASTM D695-96¹ @ 7 Days |
530,000 psi (3655 MPa) | Minimum 200,000 psi (1,400 MPa) |
| Slant Shear Bond Strength
Per ASTM C 882¹, Moist Cured @ 2 days (Old to Old Concrete) @ 14 days (Old to Old Concrete) @ 14 days (New to Old Concrete) |
1,250
psi (8.6 MPa) 1,900 psi (13.1 MPa) 2,100 psi (14.5 MPa) |
Minimum
1,000 psi (7.0 MPa) Minimum 1,500 psi (10.0 MPa) Minimum 1,500 psi (10.0 MPa) |
| Tensile Strength Per ASTM
D638-98¹ @ 7 days |
7,250 psi (51 MPa) | Minimum 7,000 psi (48 MPa) |
| Tensile Elongation Per
ASTM D638-98¹ @ 7 days |
1.5% | Minimum 1% |
| Heat Deflection Temp.
Per ASTM D648-98¹ @ 7 days |
135ºF (57ºC) | Minimum 120ºF (50ºC) |
| Linear Coefficient of Shrinkage Per ASTM D2566¹ @ 7 days | 0.002 | Maximum 0.005 |
| Water Absorption Per ASTM
D570-98¹ @ 7 Days |
0.41% w/w | Maximum 1.0% w/w |
| All Technical Data is
typical information, but may vary due to testing methods, conditions
and operators. ¹ Independent Reports Are Available Upon Request. |
||
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 the skin, wash thoroughly with soap and water, not
solvent.
Limitations / Precautions
Not recommended for use when the concrete temperature has been below 40°F
for the past 24 hours. Do not thin with solvents or use to seal cracks
under hydrostatic pressure. Do not warm epoxy over direct heat…use
the double-boiler method or store material in warm room, prior to application.
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. SEALTIGHT REZI-WELD 1000 is not to be used as an exterior coating.
In bonding applications, cured epoxy will require mechanical scarification
prior to adhering subsequent toppings.
This material last updated June, 2002.
| Div. 03930 |
|
|