|
|
|
|
 |
|
Multicoat Coatings - Multi-Tex Stucco System
|
|
|
|
|
|
|
|
|
|
The Ultimate Stucco System
A Durable, Fire Retardant, Weather Resistant Exterior Stucco System.
The MULTICOAT Multi-Tex Stucco System consists of a high build flexible acrylic emulsion applied to a special non-combustible lightweight autoclaved cementitous wall board. It forms a cost-effective, durable weather-resistant exterior stucco finished (primed) wall, installed on wood or steel frame, residential or commercial structures.
Advantages
- Replaces Sheet Panel
- Flexible
- High Impact and Abrasion Resistance
- Resists Moisture Penetration and Formation of Fungus and Mildew
- Resistant to Salt Spray, Freeze/Thaw, and Most Chemicals
- UV Resistant
- Easy to Install
- Multiple Finishes-Smooth-Medium-Rough
- Multiple Color Choice
- Waterbase Stuco Emulsion-Environmentally Safe
|
Click the picture for a larger view
|
|
 |
Installation
|
Surface Preparation:
Pre-Primed fibercement board must be structurally sound, and surface must be free from grease, oil, paint, dirt, dust, sealers, laitence, and other foreign materials that may PREVENT PROPER BONDING. Proper expansion joints should be installed according to applicable local building codes. (Recommended: Approximately every 16 feet when wall has no openings.)
Note: A moisture barrier or house wrap may be necessary in some applications. Check local building codes.
|
Properly Attach Wall Board to Structure
(leave min. 1/8" gap between panels)
|
Application:
STEP1: Install pre-primed fibercement wall board panels on existing structure using galvanized nails (wood) or self-tapping ceramic coated screws (steel), 6" centers. Leave minimum 1/8" space between panels (refer to diagrams). Caulk all joints with polyurethane caulk. Allow caulk to thoroughly cure. Tape all caulked joints with Multicoat elastomeric 3" joint tape.
Use 6" tape on all corners (refer to diagrams).
STEP 2: Clean wall board with water-dampened sponge. Leave slightly damp. Immediately apply Multicoat STUCCO MIX directly to wall board with trowel or sprayer, and finish to desired texture.
(A skim coat may be necessary over joints when substrate is not level)
Note: Smooth texture requires a minimum two coats, trowel finished. See (COVERAGE).
(Additional coat(s) may be necessary to properly hide joints)
|
Caulk all Joints with Polyurethane Caulk
(allow to cure)
Apply Multicoat Elastomeric Joint Tape to Corners and Joints
|
Coverage:
Stucco Textures - Each 5-gallon pail of STUCCO MIX will cover approximately 80-125 sq. ft., depending on texture.
Smooth Texture - Each 5-gallon pail of STUCCO MIX will cover approximately 100-125 sq. ft., two coats.
(All coverages may vary depending on application methods)
|
Apply Multicoat Stucco Mix to Wall Board to Desired Texture
|
|
|
Specifications
I Description and Scope
The MULTICOAT MULTI-TEX STUCCO SYSTEM consists of a high build flexible Synthetic Latex emulsion applied to a special, non-combustible, lightweight, autoclaved cementitious exterior wall board.
It forms a cost-effective, durable weather-resistant exterior stucco finished wall, installed on wood or steel frame,residentiall or commercial structures.
The scope of this specification is to describe all materials and installation procedures required for the application of the MULTI-TEX STUCCO SYSTEM.
II Materials
1)MULTI-TEX STUCCO MIX COATING
As manufactured by MULTICOAT CORPORATION
Shall be a high build waterbase flexible synthetic latex combined with various sand fillers to obtain desired coating texture.
Physical properties of the cured coating shall meet or exceed the following test criteria:
| STUCCO MIX |
| |
TEST |
METHOD |
RESULTS |
| 1. |
200 Hour Weatherometer |
ASTM G23 |
No marked evidence of surface cracking, blistering, flaking, chalking, crazing or any other deleterious. |
| 2. |
Moisture Resistance |
ASTM D2247 |
No blistering or cracking of surface. |
| 3. |
Freeze-Thaw |
Section VI D of acceptance criteria for EIFS |
No change in color, no cracks, no crazing, no delamination. |
| 4. |
Abrasion Test (Falling Sand) |
ASTM DE968 Method A |
Initial wear started at 3200 liters |
| 5. |
Fungus |
Mil-Std-810B (Method 508) |
Passed |
| 6. |
Moisture Vapor Transmission |
ASTM E96 |
4.56 Perms, the coating is not a vapor barrier |
| 7. |
Mildew Resistance |
Fed. Spec. 6271 |
Passed |
| 8. |
Salt Spray Resistance |
ASTM-B117 |
Passed 18 cycles |
| 9. |
Wind Driven Rain Resistance |
TTC-555b |
Passed 24 hours |
| 10. |
Fire Hazard Classification |
ASTM E-84 |
Fuel contribution -0, smoke development -5, Flame spread -10. |
|
2) CEMENTITIOUS WALL BOARD-As Manufactured by MAXI-TILE, INC.
Shall be fiber cement board, Maxi Panel or approved equal.
Physical properties of cemenititious wall board shall be equal to or exceed the following criteria:
ICBO #5139, City of Los Angeles RR #25252, SBCCI PST & ESI Report #9556
a. Thicknesses 1/4", 5/16", & 7/16"
b. Installed Weight
1/4" 1.9 lb/sq ft
5/16" 2.4 lb/sq ft
7/16" 3.3 lb/sq ft
c. Density 86 lb/cu ft
d. Bending Strength
Transversal 2,000 psi
Longitudinal 2,500 psi
e. Thermal Resistance R = 0.17
f. Shrinking: Ambient to oven-dry 0.06%
g. Swelling of Thickness (after 7 days of full saturation) 0.2%
h. Flame Spread 0
i. Smoke Density 0
3) ELASTOMERIC JOINT TAPE Manufactured by MULTICOAT CORPORATION
Shall be synthetic grey adhesive / sealant backed by special synthetic fabric.
Physical properties of Joint Tape shall be in accordance with the following specifications:
a. Appearance: Greyish white fabric with grey adhesive/sealant
b. Bonding Time: Immediate aggressive grip - 24 hr. full bond
c. Backing: Polyester fabric 2 mil.
d. Adhesive: "The Gray Matter" 11 mil
e. Temperatures:
Application - 30 deg.F to 110 deg.F
Operating Limits - -10 deg.F to 180 deg.F
f. Low Temperature Flexibility - Passes/No Cracking
g. Tensile Strength - 570 psi (with 75% elongation)
h. Shelf Life - 18 mo. to 2 years.
i. Peel Strength - 5 lbs. per linear inch
j. Water Resistance - Excellent. Surface must be dry before application.
4) BOSTIK 1100 FS CAULK
a. Cure Time: Tack Free - 100 minutes. Complete Cure @50% R.H. 72 deg.F 36 hours
b. Shore A: 38
c. Tensile (psi): 325
d. Elongation %: 950
e. Temperature: -20 to 200 deg.F
III Application
A. SURFACE PREPARATION
Wall board and supporting framework must be structurally sound. Surface must be thoroughly cleaned of all grease, oil, paint, dirt, dust, sealers, and other foreign substances which may prevent proper bonding. Proper expansion joints should be installed in according to local building codes (Recommended approximately every 16 ft. maximum when wall has no openings)
B. APPLICATION
1. Install cementitious wall board panels WALL BOARD on existing structure using galvanized nails (wood) or self-tapping ceramic coated screws (steel), 6" centers. Leave minimum 1/8" space between panels. Caulk all joints with polyurethane caulk. Allow to cure 24 hours. Tape all caulked joints with MULTICOAT ELASTOMERIC 3" JOINT TAPE. Use 6" tape on all corners. Corner bead if necessary.
2. Clean wall board with water-dampened sponge. Leave slightly damp. Immediately apply MULTICOAT STUCCO MIX directly to wall board with trowel or sprayer; finish to desired texture.
3. Caulk expansion joints after application and cure of MULTI-TEx STUCCO MIX
IV Warranty
Materials are warranted 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.
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
