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Multicoat Coatings - Slatex Above Grade Waterproofing
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The MULTICOAT SLATEX ABOVE GRADE SYSTEM is a multi-layer protective coating which combines an elastomeric waterproofing membrane (MULASTICOAT) with a fiberglass-reinforced, Synthetic Resin modified cementitous top coating (KRETE KOTE 2000 or TOP COAT 2000).
The SLATEX ABOVE GRADE SYSTEM is designed to withstand heavy foot and vehicular traffic on walkways, decks, ramps, parking garages, roofs, etc. The SLATEX ABOVE GRADE SYSTEM can be applied to concrete, tile, work, magnesite, epoxy stone and most other surfaces or substrates in need of a waterproofing and/or fire resistant protective coating



Advantages

  • Low Cost-Minimum Down Time-Easy to Apply
  • Superior Waterproofing
  • Hard, Durable, Anti-Skid Surface
  • Maintains Surface Integrity Over Minor Substrate Movement
  • Excellent Weather-Salt-Fire Resistance
  • Superior Bonding to Substrate
  • Excellent Freeze/Thaw Resistance
  • High Impact and Abrasion Resistance
  • Waterbase-Environmentally Safe to Use and Apply


Specifications

I Description and Scope

The MULTICOATSLATEX ABOVE GRADE SYSTEM is a multi-layer protective coating which combines an elastometric waterproofing membrane (MULASTICOAT) with a fiber-glass-reinforced, synthetic resin modified cementitious top coating (KRETE KOTE 2000 or TOP COAT 2000)

The SYSTEM is designed to withstand heavy foot and vehicular traffic on walkways, decks, ramps, parking garages, roofs, etc. It can be applied to concrete, tile, wood, magnesite, epoxy stone and most other surfaces or substrate in need of waterproofing and/or fire resistant protective coating.

The scope of this specification is to describe all materials and procedures for the installation of the MULTICOAT SLATEX ABOVE GRADE SYSTEM.

II Materials

(1) Elastomeric Waterproofing Membrane
MULASTICOAT as manufactured by MULTICOAT CORPORATION

Shall be a modified synthetic latex whose cured physical properties shall meet or exceed the following test criteria:

MULASTICOAT
  TEST METHOD RESULTS
1. Tensil/elongation ASTM-D 412-83 Aged 717psi/392%
2. Bond Strength Concrete ASTM-C 297 192psi
3. Low Temperature Flexibility   -50F
4. Crack Bridging LA City Method Total Elongation -205%
5. Percolation 2" x 48" waterhead-48hrs No Loss
6. Accelerated Aging ASTM-D 756 D+E 25 cycles-Passed
7. Water Vapor Transmission ASTM-E 96-BW Grains/hr./ft.sq. .0044


(2) Cementitious Protective Coating KRETE KOTE 2000 or TOP COAT 2000 as manufactured by MULTICOAT CORPORATION

Shall be a synthetic resin modified cementitious material, furnished in dry form, mixed with a potable water at job site in necessary proportions to obtain desired consistency.

Physical properties of the cured mix shall meet or exceed the following test criteria:

KRETE COAT 2000
  TEST METHOD RESULTS
1. Weatherometer ASTM G23 2000 Hrs-Passed
2. Compression Strength ASTM C109...
45 Days air cured		 2595psi
3. Tensile Strength ASTM-C190 457psi
4. Bond Strength
(Flatwise Tension)		 ASTM-C297 225psi
5. Abrasion Test ASTM-1242A...
1000cyc-1000gms		 39 mil loss
6. Salt Spray ASTM-B117 300 Hrs-Passed
7. Water Vapor Transmission ASTM-E96A 1.26 Perms
8. 50-Cycle Freeze Thaw ASTM-C67 Passed
9. Flexural Strength ASTM-D790 Modulus of Rupture-770psi
10. Impact Resistance MIL-D-3134F Passed
11. Flame Spread ASTM-E84 Class A


(3) STITCHBONDED POLYESTER FABRIC
Shall be in accordance with the following specifications - 10" wide rolls:

a. Weight 2.75 Oz/Sq. Yd.

b. Tensile Strength MD/TD 31.6 Lb.

c. Elongation 40.6%

d. Mullen Burst 99.6 Lb.

e. Tear Strength 13.2 Lb.


(4) FIBERGLASS MESH
Physical properties shall be in accordance with the following specifications:

a. Count: 20 X 10 Leno Weave - Visual count - 12 x 6

b. Yarn: Warp - 37 1/0 0.7z ECH, Fill - ECK 1,800 yd/lb roving

c. Tensile: 150 X 150 pounds per inch of width

d. Weight: 4.5 oz. per Square Yard

e. Thickness: 0.0135 inches

5. MULTICOAT ACRATHANE COLORSEAL/CLEARSEAL
as manufactured by MULTICOAT CORPORATION

Shall be high solids synthetic waterbase latex protective coating for cleaning ease. Formula proprietary. Physical characteristics designed for compatibility with TOP COAT and KRETE KOTE 2000.

III Surface Preparation

1. All substrates must be structurally sound and free from all grease, oil, paint, dust, sealers and other foreign materials which may prevent proper bonding of MULTASTICOAT

SUBSTRATES AND SUPPORT SHOULD BE CONSTRUCTED IN COMPLIANCE WITH ALL APPLICABLE BUILDING CODES

2. Plywood substrates, including tongue and groove plywood, must be 5/8" minimum thickness, exterior grade AC, 16" maximum support spacing, edges blocked, all fastened with 8 penny ring shank nails or equivalent, on maximum 6" centers.

Moisture content should be below 15%. Use moisture meter to check. DO NOT USE OVER O.S.B. BOARD/CHIPBOARD.


IV APPLICATION

1. MULASTICOAT

Coat all plywood joints,flashings,posts,drains,coves, stairwells and other irregularities with MULASTICOAT; embed with Switchbonded Polyester Fabric; apply additional MULASTICOAT to saturated fabric, and allow to dry. MULASTICOAT is then applied over entire substrate in two(2) thin coats with roller, using firm pressure.

First coat is allowed to dry to touch, usually 1-2 hours depending on ambient temperature. Second coat is applied crisscross to first coat. Allow MULASTICOAT to fully dry before proceeding with KRETE KOTE 2000 surfacing. DO NOT ALLOW MULASTICOAT TO BE EXPOSED FOR MORE THAN 3 DAYS.

2. KRETE KOTE 2000

Before proceeding remove dust from MULASTICOAT with damp sponge.

First coat of KRETE KOTE 2000(see KRETE KOTE 2000 instructions for mixing information) is applied with roller, squeegee or trowel; fiberglass mesh is immediately embedded and troweled down firmly. Minimum two hours initial cure, longer in cool weather.

Second coat of KRETE KOTE 2000 is applied firmly with trowel. Minimum 2 hours cure time, longer in cool weather.

3. TOP COAT 2000/ OR KRETE KOTE 2000

Third coat, TOP COAT 2000 or KRETE KOTE 2000, is applied with trowel or hopper gun, depending upon whether smooth or textured finish is desired. Allow to cure a minimum of twelve(12) hours before allowing foot traffic and seventy-two(72) hours minimum for vehicular traffic, longer in cool weather.

Not responsible for cracks and delamination caused by structural movement, improper substrate or application.

After APPLICATION the cured ABOVE GRADE SYSTEM, applied to properly constructed and supported plywood substrate should meet or exceed the following test data:

TEST DATA - SLATEX SYSTEM (ABOVE GRADE)
  TEST METHOD RESULTS
1. Weatherometer ASTM G23 2000 Hrs.-Passed
2. Aging ASTM A756D & E 25 Cycles-Passed
3.
Bond Strength    
Before Aging    
After Aging    
Failure At    
ASTM C297    
     
ASTM A756D&E    
     
Plywood   Concrete
91 psi   209 psi
89 psi   218 psi
Plywood   Mulasticoat
4. Abrasion Test ASTM D-1242A
1000Rev-1000Gm Load		 39 mil Loss
5. Percolation Tests 2" Dia x 48"
Water head for 48 Hrs		 No Loss
6. Absorption Tests ASTM D570 Water Absorption 8.1%
To most Chemicals and Solvents
7. Chemical Resistance ASTM D2299 Water Absorption 8.1%
To most Chemicals and Solvents
8.
Freeze Thaw 50 Cycle    
Bond Strength    
Failure at    
ASTM C67    
     
     
Plywood   Concrete
91 psi   202 psi
Plywood   Mulasticoat
9.
Concrete Load Test    
Load Deflection    
Residual Indentation-Final    
500 lb., 5 Cycles    
     
     
     
.031 in.    
.018 in.    
10. Fire Retardant Roof Test UBC 32-7 Class B
11.
Anti-Skid Test (Leather & Rubber)    
Factor of Static Friction    
Factor of Sliding Friction    
ASTM C1028    
     
     
Dry   Wet
.87-.88   .75-.79
.52-.77   .67-.72
12. Wind Uplift test factory Mutual 1-52 Passed


4. COLORSEAL (Recommended)

Optional, for ease of cleaning and to enhance appearance. Surface must be cured a minimum of twenty-four(24)hours before applying.

V Warning:

Do not apply any components of SLATEX SYSTEM when substrate surface temperature is below 500F,above 1000F, if ambient temperature is below 500F and falling, over 1000F and expected to rise, or if precipitation is expected within 24 hour period.

VI Warranty

Materials are guaranteed with respect to uniformity and quality within manufacturers' specifications. Seller makes no other warranty, expressed or implied, regarding the use of its products. Since use of the product is beyond the Seller's control, the Buyer assumes all risks of use. Seller's sole obligation shall be to replace materials if found to be defective. Seller shall not be liable for any damages, injury, loss, direct or consequential, resulting from use of its products.
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