Epoxy.com Product #692
Flexible Methyl Methacrylate (MMA) Flooring Mortar System
For use in Epoxy.com Methyl Methacrylate (MMA) Flooring, Decking & Bridge
Deck Systems
DESCRIPTION
Epoxy.com Product #692 Flexible Methyl Methacrylate (MMA) Flooring, Decking
Bridge Mortar Resin is a higher viscosity, 100% reactive, flexible methyl
Methacrylate resin used as a crack isolation or waterproofing membrane under Epoxy.com MMA Systems. Epoxy.com Product #692 Flexible
Methyl Methacrylate (MMA) resists cracking caused by horizontal substrate movement providing a crack resistant, resilient surface.
Epoxy.com Product #692 Flexible Methyl Methacrylate (MMA) offers stress relieving properties for floor slabs showing movement and/or
vibration.
Excellent for use as an intermediate layer in:
- Loading docks
- ramps
- equipment rooms
- large animal rooms
- activity rooms
- automotive and
tooling industry
- freezers
- coolers
- bridge decks
- pedestrian walkways
- parking garages
- ship decks
- joint repair
- food industry
- dairies
- beverage industry
- numerous other applications.
ADVANTAGES
- Crack resistant flexibility Elongation of 300%.
- Reduces noise created by mechanical vibrations.
- May be applied in thickness of 1/8"-¼ ".
CONSIDERATIONS
- For improved intermediate adhesion, broadcast Epoxy.com Product #692 Flexible Methyl Methacrylate (MMA) with 16-30 mesh
silica sand.
- Concrete must be dry, free of dirt, waxes, curing agents and other foreign materials.
- Do not store outside in direct sunlight , storage temperature must be < 80°F.
- On or below grade installation must have an efficient vapor barrier under the
slab (minimum 10-15 mil).
- Moisture vapor transmission must be less than 3 lbs per ASTM-F-1869 and less
than 80% RH per
ASTM F-2170.
COMPOSITION
Epoxy.com Product #692 Flexible Methyl Methacrylate (MMA) Flooring, Decking
Bridge Mortar Resin is a 100% reactive methyl methacrylate resin.
COLOR SELECTION
Epoxy.com Product #692 Flexible Methyl Methacrylate (MMA) is supplied clear
(slight haze). Color packs are available for selected colors. Color pack mix
ratio is 1 quart pigment per 5 gallons resin. See Epoxy.com MMA color card.
SURFACE PREPARATION
Surface preparation is the most critical portion of any successful resinous
flooring system. All substrates must be prepared as indicated on the
Epoxy.com Surface Preparation Guide.
MIXING AND INSTALLATION
Epoxy.com Product #692 Flexible Methyl Methacrylate (MMA) is typically used in
conjunction with fillers and fine aggregate and requires the addition of Epoxy.com Product #695 MMA
hardener to start the hardening process. The amount of hardener must be adjusted
to the respective surface temperature (see table). At temperatures below 40°F, Accelerator 101 must be
used in addition to the amount of hardener used at the 40°F level (about ½ oz by vol./gal. @ 32°F up to 2.0 oz by
vol./gal. @ -20°F).
Typical Slurry/Topping Formula
|
| Material | Weight | Volume |
| Epoxy.com Product #692 | 8.4 lbs. | 1.0 gal. |
| Epoxy.com Product #78 Leveling Filler | 20 lbs. | 1.8 gal. |
| Pigment Pack | N/A | 6.4 Vol. oz. |
| Epoxy.com Product #695 MMA Hardener | Follow chart | Follow Chart |
| |
Add hardener to the clear resin and blend; add dry powders and mix thoroughly
with propeller mixer. Blend pigment and mix for 1-2 minutes until no lumps are present. Apply mix to the
primed surface using a gauge rake or notched trowel. The above mixture will yield approximately 1.8 gal. of
slurry. Coverage is:
| 3/32 inch | 30 sq ft |
| 1/8 inch | 22-23 sq ft |
| 3/16 inch | 15.0 sq ft |
| 1/4 inch | 11.3 sq ft |
The fresh slurry coat must be broadcast to excess with a wearing coarse of
aggregate. Rates will vary from 0.25-1.25#/sq ft depending on type and size of aggregate. It is recommended to
broadcast 16-30 mesh aggregate. Do not use broadcast aggregate smaller than 30 mesh. Aggregate may be
natural or colored quartz, sand, aluminum oxide, emery, etc.
Epoxy.com Product #692 systems must be top coated, protected, or sealed with Epoxy.com
Product #693 Methyl Methacrylate (MMA) Top Coating. These can be either
pigmented or non-pigmented.
Pot Life and Hardening/Temperature
|
Temp. (°F) of
Resin, Air & Floor
Surface
|
Hardener by
Vol.(oz.)
Based on Gallon
of #692 MMA Resin
|
Pot Life (min.)
|
Hardening
Time(min.)
|
| +41 | 8.0 Approx. | 25 Approx. |
70 |
| +50 | 7.0 Approx. | 25 Approx. |
65 |
| +68 | 5 Approx. | 20 Approx. |
50 |
| +70 | 5 Approx. | 20 Approx. |
45 |
| Below 41°F Epoxy.com Product # 696 Accelerator must be used in addition to the amount of hardener
used at the 41°F level (about ½ oz by vol./gal. @ 32°F up to 2.0 oz by vol./gal. @ -20°F). |
PHYSICAL PROPERTIES |
| Percent Solids | 100% |
| Working Life, 50° - 70° | 20-25 min. |
| Recoat Time | 55-75 Min. |
| Viscosity, cps | 1,100-1,200 cps |
| Weight per Gallon | 8.3 lbs |
| Compressive Strength | 2,500-3,000 psi |
| Tensile Strength | 75-80 psi |
| Elongation at Break | 300% |
CLEAN-UP
Clean tools and equipment with lacquer thinner or MEK. Consult Material Safety Data Sheet for safety and health precautions.
STORAGE
Store in a cool and dry place, below 80°F, out of direct sunlight. Do not store
near open flame or food. Shelf life is 4-6 months in the original unopened containers.
HELPFUL HINTS
Additives and fillers can separate with storage. Stir thoroughly before using or
removing from drum.
Adequate cross ventilation should be provided. Good ventilation during the processing ensures a good cross
linking and hardening. Read, understand and follow Material Safety Data Sheets and Application Instructions
prior to use.
Use only as directed. If substrate and/or material temperature is above 90°F, DO
NOT apply material.
For industrial Use only.
Keep out of reach of children.