Flexible Decking System Methyl Methacrylate (MMA)

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Flexible Methyl Methacrylate Decking

Installation Quick Overview


Methyl Methacrylate (MMA) Decking Installation Overview

This is a quick guide to the installation of the typical Epoxy.com Flexible Decking Systems and Overlay. This is intended to be a quick overview. Be sure to consult all of the specific tech data sheet associated with this system as well.

Step 1: Surface Preparation

Prepare the concrete for the installation of the material.  Be sure it is clean and sound: www.epoxy.com/surfaceprep.aspx.

Step 2: Crack Repair

Repair any cracks – contact Epoxy.com Technical support with details of the cracking so we can advise you on the best way to do this.

Step 3: Methyl Methacrylate Primer

Product #691 Primer – www.epoxy.com/691.aspx.

Epoxy.com Product #691 Methyl Methacrylate (MMA) Flooring Primer requires the addition of Epoxy.com Product #695 Hardener to start the hardening process. The amount of hardener must be adjusted to the respective surface temperature (see table below). 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

Epoxy.com Product #691
MMA Primer

SUBSTRATE/MATERIAL TEMPERATURE (°F)

Epoxy.com Product #695 MMA Hardener (BPO)VOL OZ.PER GALLON OF RESIN

30°F

12.7

40°F

9.0

50°F

7.5

60°F

5.5

70°F

3.5

90°F

1.8

Remember to mix only small amounts that you can use in about 10 minutes.

Spread Epoxy.com Product #691 Methyl Methacrylate (MMA) Flooring Primer evenly on the surface (no puddles) with notched trowels, and/or squeegees and back rolled with short nap mohair rollers at no less than 100 sq ft/gal. on very absorbent surfaces. Two coats may be necessary to get an even, resin-rich surface to bond with the next layer.

It is recommended to broadcast 16-30 mesh quartz sand Product #77 (approximately 4 lbs/100 sq ft) into the wet primer. This will help in the application of the coating or troweled mortar. Apply next application only after the primer is completely hardened.

Step 4:

Epoxy.com Product #692 – www.epoxy.com/692.aspx. Again be sure to mix small batches.

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 #82

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

PRODUCT #77The 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).

 

Step 5:

Sweep and vacuum all loose sand from the surface (step 4) after the material has hardened.

Step 6:

Epoxy.com Product #693 – www.epoxy.com/693.aspx.

APPLICATION

SURFACE PREPARATON

Surface Preparation is the most critical portion of any successful resinous flooring system application. All substrates must be properly prepared as outlined in Epoxy.com Surface Preparation Guide.

MIXING/APPLICATION

Epoxy.com Product #693 Methyl Methacrylate (MMA) Sealer and Coating 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 below). At temperatures below 40 ° F, Epoxy.com Product #696 Accelerator 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).

For Epoxy.com Product #693 MMA Resin

Temp. (°F) of Resin,
Air & Floor Surface

Hardener % by Wt.
Based on Wt. of
#693 Resin

Hardener by Vol.
(oz.) Based on
Gallon of #693 Resin

Pot Life (min.)

Harden Time (min.)

+40

3.0

5.5

Approx. 40

Approx. 60

+50

2.5

4.5

Approx. 30-35

Approx. 50

+60

2.0

3.5

Approx. 25-30

Approx. 45

+70

1.0

2.0

Approx. 20

Approx. 40

Epoxy.com Product #693 Methyl Methacrylate (MMA) Coating must be applied 50-100 sq. ft./gal. (16-32 mils) for safe through-hardening. To avoid yellowness do not apply more than 80 mils (20 sq ft/gal.). For outdoor applications add 1% Epoxy.com Product #693 UV Inhibitor at a rate of 1% by volume. Pigmented topcoats are achieved by adding pigment packs (1 quart per 5 gallons resin) to Epoxy.com Product #693 Methyl Methacrylate (MMA) Coating. Apply material with a notched trowel or squeegee and back roll with a short nap mohair roller.

Broadcast uncured Epoxy.com Product #693 with Epoxy.com Product #77 Broadcast aggregate at a rate of about 1 lb per square foot.

See also:

Proper mixing and installation is critical to the optimal success of all product.  See Installation Tips, Techdata, & MSDS for more details on our products.  Be sure to contact us with any questions and/or concerns that you have.

For more information please contact:

Epoxy.com
A Division of Epoxy Systems, Inc
20774 W. Pennsylvania Ave.
Dunnellon, Florida 34431
Hundreds of Systems,
Since 1980 - 35 years
Florida & Vermont
USA


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