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SEMI-RIGID FLEXIBLE EPOXY JOINT FILLER
Description
REZI-WELD FLEX is a gray, two-part, pourable consistency, premium-grade,
moisture insensitive, epoxy joint filler formulation. When cured,
it is semi-rigid, with a Shore D Hardness of 60.
Uses
REZI-WELD FLEX was developed for use as a joint filler
for saw cuts and construction joints in interior concrete floors
subject to load bearing, wear or impact conditions, such as warehouse
and industrial plants. These are floors which are typically subjected
to hard-wheeled vehicles (such as forklifts).
REZI-WELD FLEX is also suitable for filling or repairing random
cracks in slabs, or as an embedded control wire sealant.
Features
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Color (mixed):
Gray
Shelf Life
2 years (in unopened, undamaged container)
Packaging
1 gallon (3.79 liter) Unit
10 gallon (37.85 liter) unit
Coverage
231 cu. in (3785 cu. cm) per 1 gallon unit
TECHNICAL DATA*
| Typical Physical Property | Test Method | ACI Report 302.1 | Typical Value |
|
Solids % by weight Mix Ratio (A:B) Color (A & B mixed) Consistency Pot Life (1 gal. unit), minutes Thin film tack-free time, hours |
ASTM D 1259 by volume visual Appearance ASTM C 881 ASTM C 879 |
100 % min. |
100% 1:1 Gray Pourable 20 mins. 3.5 hrs. |
|
Tensile adhesion to concrete:@ 3
days: 75º F (24º C), PSI |
ASTM D 5329 | 290 PSI | |
|
Hardness: Shore D (7days) Shore A (7 days) |
ASTM D 2240 |
50 min. |
60 95 |
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Tensile strength: 75º F (24º C), (3 days), PSI 75º F (24º C), (7 days), PSI |
ASTM D 638 |
660 PSI 770 PSI |
|
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Elongation: 75º F (24º C), (3 days), % 75º F (24º C), (7 days), % |
ASTM D 638 | 6 % min |
72% 53% |
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Water Absorption: 75º F (24º C) (24 hrs.), % by weight |
ASTM D 570 | 0.56% | |
| Shrinkage | ASTM D 2566 | Negligible |
| LINEAL FEET PER UNIT | |||
|
Joint Depth 1" 1-1/4" 1-1/2" 1-3/4" 2" |
Joint Width 1/8" 154 123 102 88 77 |
3/16" 102 82 68 58 51 |
1/4" 77 61 51 43 38 |
| LINEAL METERS PER UNIT | |||
|
Joint Depth 25mm 32mm 38mm 44mm 51mm |
Joint Width 3mm 50 meters 39 meters 33 meters 29 meters 25 meters |
6mm 25 meters 20 meters 17 meters 14 meters 12 meters |
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APPLICATION
Joint Preparation and Design...Joints must be level, clean and free of frost
and standing water. Remove curing compounds, form release agents,
old sealant and/or contaminants from joint surfaces by sandblasting
or mechanical abrading. Blow any dust, dirt and laitance out of
the joint with oil-free compressed air prior to application. To
prevent run out from cracks in the bottom of joints, apply a small
amount of fine dry sand. Install full depth. Do not use with soft
backer rod. Tape joint sides to allow for easy removal of overfill.
Joint frequency, width and depth shall be
as specified by the design engineer. It is suggested that the
width of a typical saw cut shall be 1/4" (6.4mm) maximum.
The suggested depth of the saw cut should be 25% of the slab thickness,
but no less than 1" (25.4mm) in depth.
Mixing...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 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 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.
Dispensing...Pour properly mixed product directly from can, dispense through a bulk caulking gun or positive displacement pump. Fill joint to top. If leakage occurs, reapply as necessary prior to product becoming tack-free.
Clean-up...Prior to curing, clean all tools and equipment with toluene or xylene. Spilled material must be collected with absorbent material and disposed of in accordance with local, state and federal regulations. Remove solid material mechanically.
SAFETY AND TOXICITY
Avoid direct contact with this
product. Both components may cause irritation as well as skin
and respiratory sensitization. Component B is corrosive and may
cause tissue destruction. In case of contact, immediately flush
affected areas thoroughly with water for at least 15 minutes.
Seek immediate medical attention. 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 Material Safety Data Sheet for complete
health and safety information.
PRECAUTIONS
Do not use in vertical or sloping
joints, or in areas subject to continuous water immersion. Do
not use in joints designed for any significant movement (i.e.
expansion or contraction joints). Do not apply when concrete temperature
is below 40ºF (4ºC). This product is recommended for
interior use only. It is not suitable for areas subject to sudden
extreme temperature changes. Concrete must be a minimum of 28
days old, but for optimal results, allow the concrete to cure
for a minimum of 56 days prior to installation. REZI-WELD FLEX
may discolor during curing when applied in areas heated by artificial
heaters, which generate carbon dioxide, or when exposed to certain
UV lighting systems or sunlight.
This material last updated April, 2004.
