Tough Stuff AC8020 provides a permanent, high-build elastomeric protective waterproofing coating that remains flexible on masonry, stucco, block, concrete, wood, metal, EPS and other common construction surfaces.
Tough Stuff AC8020 may be applied by conventional or airless spray equipment. Brush or roller may also be used for touch-up and edging work or for small areas unsuitable for spray applications. Airless spray is the most effective method for obtaining uniform film build. Back rolling will be necessary on rough surfaces to eliminate pinholes.]
Upon standing, the product will settle into a two stage suspension. It is necessary to thoroughly mix all Tough Stuff AC8020 containers prior to application. Use a slow speed mixer capable of mixing the entire contents.
Tough Stuff AC8020 has a rich thixotropic consistency. The addition of water reduces this thixotropic nature and decreases the ability to achieve heavy film builds with good vertical hold. The material is easily pumped and sprayed without thinning provided equipment is in good working condition and the coating is properly mixed and maintained at a minimum temperature of 60°F (16°C).
Existing hairline cracks should be filled by brushing or spraying with Tough Stuff AC8020 in sufficient quantity to totally hide the crack. All cracks larger than hairline should be considered as “moving” and should be routed, cleaned, and filled with a quality patching material.
All surfaces should be sprayed with multidirectional spray passes to assure positive coverage. Tough Stuff AC8020 must be applied in two separate coats to ensure proper film builds, cure rate, and a pinhole-free continuous film. The second coat shall be applied in a direction perpendicular to the first coat after it has dried. All surfaces must be uniformly coated and be free from voids, pinholes, or blisters.
The theoretical thickness given for coverage is based on smooth nonporous surfaces. Actual quantities required to achieve the minimum dry film thickness will depend upon the surface texture, method of application, and weather conditions. It is the responsibility of the applicator to apply sufficient material to achieve the minimum dry thickness required. The amount of material being applied can be measured on smooth surfaces by use of a wet film thickness gauge. For textured surfaces, a smooth board is placed on the surface of the wall. Tough Stuff AC8020 applied at the rate of one gallon per 100 square feet (.41/m2) will theoretically yield 9.6 dry mils (244 dry microns).
As work proceeds, the applicator must periodically check the quantity used and compare to square feet coated. If adequate quantities have not been used, adjust accordingly and apply additional material to previously coated areas.
It is recommended that a minimum of 15 dry mils of Tough Stuff AC8020 be applied to all vertical surfaces. All surfaces must be uniformly coated and be free from voids or pinholes to assure waterproofness.
Tough Stuff AC8020 has been tested over a wide variety of substrates, utilizing many different brands, types and sized of conventional and airless spray equipment. Airless equipment is best for field application, with the following recommended minimum:
|Pump:||.75 gal./minute minimum output capacity|
|Gun:||Any airless handgun compatible with pumps used|
|Screen Size:||30 Mesh or larger|
|Tip:||A reversible self-cleaning tip with orifice size of .021 to .031 and 40° to 60° fan.|
|SUBSTRATE||GAL./100 SQ. FT.||SQ. FT./GAL.|
|Concrete Block, Brick||2.5||40|
|Lightweight, Pumice Block||3||33|
|Split Face, Stucco, Course Textured Surfaces||3.5||29|
|Solids by Weight||67%|
|Solids by Volume||51%|
|Tensile Strength||300 p.s.i.|
|Hardness||70-80 Shore A|
|Low & High Service
|-30°F to 200°F
(-34°C to 93°C)
|Dry time @ 75° F (24°C) w/ 50% R.H.||1.5 hours @ 20 mils wet|
|Color:||White or tintable with
|Weight per US gallon:||12.6 lbs. (5.72 kg) /US gal.|
|Accelerated Weathering UV Resistance||Atlas Carbon Arc Weather Ometer Type EH-Continuous UV and water spray cycling at elevated temperature. ASTM D822, ASTM G23||After 2,000 hours of continuous exposure, 8020 showed no deterioration, no surface checking, cracking, or delamination.|
|Resistance to Wind Driven Rains||Pressurized test chamber producing 5" (12.5 cm) of water pressure, equivalent to 100 m.p.h. wind pressure (161 km./hr.). Federal Spec TTC-555B||During 40 hours of continuous testing, no apparent moisture penetrated the 8020 sample.|
|Resistance to Salt Spray||Harshaw Salt Spray Cabinet (5% NaCl fog solution). ASTM B117||After 500 hours of continuous exposure, 8020 showed no deterioration, no surface chalking, cracking, or delamination.|
|Resistance to Mildew||Five different fungus cultures grown on potato dextrose agar in an 86°F (30°C) incubator. ASTM G21||After 14 days, all 8020 samples showed absolutely no fungus growth.|
|Film Breathing Ability||Honeywell Water Vapor Transmission Rate Tester. ASTM E398||At 15 mils dry (381 microns) 8020 has a perm rating of 4.5 allowing moisture vapor within building to pass through the coating while preventing the penetration of mass water from the exterior.|
|Elongation after Aging||Atlas Carbon Arc Weather-Ometer Type EH, ASTM D822, ASTM G23, and Instron Universal Testing Instrument, ASTM D412.||After 2,000 hours exposure in the Weather-Ometer, 8020 retained 95% of its elastomeric properties.|
|Low/High Temperatures||Aged films tested in accordance with ASTM D822 in thermostatically controlled heat chamber and freezer.||Films retained their ability to be flexed 180° without cracking at temperatures from -30°F to 200°F (34 to 94°C) with no age hardening or slump.|
NOTE: Various grades of block along with stucco, split surfaces, and brick will require different coverage rates. Always apply a sample to the surface to be coated to determine exact coverage requirements.
INSTALLERS must read and understand all technical and informational
literature for Tough Stuff AC5300, including the Material
Safety Data Sheets, prior to using this product.
For chemical emergencies, spills, leaks, exposure, or accidents
in the U.S.: CALL CHEMTREC 24 HOURS A DAY / 365 DAYS A YEAR 1-800-424-9300.
|5 gallon / 19 liter pail||68 pounds (±2%)||55|
|55 gallon / 209 liter drum||713 pounds (±2%)||55|
DOT Shipping Information:
Health 1, Flammability 0, Reactivity 0, Protection B
Published technical data and instructions are subject to change without notice. Please contact your Coatings International representative for the most current information.
Revised November 2003
Important: The information in this MSDS was obtained from sources which we believe are reliable.
HOWEVER, THE INFORMATION IS PROVIDED WITHOUT ANY WARRANTY, EXPRESSED, OR IMPLIED, REGARDING
The conditions or methods of handling, storage, use and disposal of the product are beyond our control, and may be beyond our knowledge. FOR THIS AND OTHER REASONS, WE DO NOT ASSUME RESPONSIBILITY AND EXPRESSLY DISCLAIM LIABILITY FOR LOSS, DAMAGE, OR EXPENSE ARISING OUT OF OR IN ANY WAY CONNECTED WITH THE HANDLING, STORAGE, USE, OR DISPOSAL OF THE PRODUCT.
This MSDS was prepared and is to be used only for this product. If apprised of changes, updated MSDS sheets will be promptly issued. Users must make their own determination regarding the suitability of the product for their own purpose prior to use.
VIEW / DOWNLOAD a printable PDF version of this document.
Components - Chemical Name & Common Names(Hazardous Components 1% or greater: Carcinogens 0.1% or greater)
|CHEMICAL NAME (COMMON NAME)||CAS #||%||OSHA PEL (PPM)||ACGIH TLV (PPM)||OTHER LIMITS RECOMMENDED|
|Aqueous polyurethane dispersion||10|
US DOT CLASS: Non-regulated
|1) BOILING POINT||
|2) SPECIFIC GRAVITY||(Water = 1) 1.05|
|3) VAPOR PRESSURE||<1 (mm Hg at 20°C)|
|4) MELTING POINT||Not determined|
|5) VAPOR DENSITY||(Air = 1) < 1|
|6) EVAPORATION RATE||<1|
|7) SOLUBILITY IN WATER||Soluble|
|8) WATER REACTIVE||Non-reactive|
|9) APPEARANCE & ODOR||Viscous liquid, ammonia odor|
> 220°F (Pensky-Martens closed cup)
LEL: N/A UEL: N/A
Dry chemical, carbon dioxide, foam, water spray, water fog, sand/earth.
For fires involving this material, do not enter any enclosed or confined fire space without proper protective equipment, including self contained breathing apparatus and protective clothing should be worn fighting fires involving chemicals.
Salts and acids may coagulate product.
Thermal decomposition: oxides of carbon, oxides of nitrogen.
Will not occur
Seek medical assistance for further treatment, observation and support if necessary.
May cause eye irritation. Flush eyes immediately with fresh water for at least 15 minutes while holding the eyelids open. If irritation persists, see a doctor. Do not get in eyes. Eye contact can be avoided by wearing chemical safety goggles.
Wash affected skin with mild soap and water. Remove soiled clothing.
Remove the victim from futher exposure and restore breathing if required. Obtain medical attention.
Contact a physician immediately.
Rubber or plastic, solvent resistant
Chemical safety goggles/eyewash station
Dispose of in accordance with all federal, state, and local environmental regulations.
Store between 41°F and 120°F