June 2011 2011
BECKOSOL AQ ® 520 Prod uct uc t Code: 91888-0 91888-00 0 Epoxy Modified Alkyd Latex DESCRIPTION BECKOSOL AQ 520 is an epoxy modified alkyd latex designed for use in sealers for concrete and masonry products. BECKOSOL AQ 520 provides an easy to apply product for DIY and professional applicators to achieve a “wet look” to concrete paving products without adding gloss. APPLICATIONS APPL ICATIONS •
Concrete and masonry sealers
FEATURES • • • • •
Excellent “wet look” appearance Low VOC, typical “wet look” formulation <100 g/L Low odor Low viscosity Easy application properties
TYPICAL PROPERTIES PROPERTIES Appearance Percent Solids by Weight Percent Solids by Volume Viscosity, Brookfield, 50 RPM, #3 spindle Pounds per Gallon Pounds per Gallon, Solids pH Odor Volatile Content (Percent)
Milky liquid 51 49.7 230 cps 8.51 8.67 8.3 Mild Water, n-propoxy propanol, Proprietary Surfactant, (45.5%, 2.0%, 1.5%)
STORAGE
Store in a cool, d ry place, preferably preferably un der 80° F to ensure a useful shelf life of at least six mon ths. Protect from freezing. freezing. SAFETY Read the BECKOSOL AQ 520 520 Material Material Safety Safety Data Sheet Sheet before handling, stor ing, or using this produc t.
BECKOSOL ® AQ 520 Clear Concrete “ Wet Lo ok” Sealer Formula 4586-49 Formulation
Coating Performance
Raw Material
#/100
Gal/100
399.47
47.00
Cobalt Hydrocure II, 5%
2.04
0.27
(1)
Activ 8
0.45
0.06
(2)
NatureShield 40
11.50
1.44
(3)
BYK 093
2.52
0.29
(4)
424.40 840.38
50.95 100.0
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BECKOSOL AQ 520
Deionized Water Total
Based on 7-Day Ambient Cure on Red Concrete Pavers Darkening, ΔL compared to -6.5 uncoated paver Water Whitening 1 hour exposure No Whitening 4 hour exposure No Whitening Water drop (1cc), to No Whitening evaporation Water Absorption 1 cc water spot >7 hours Adhesion, based on 7-Day Ambient Cure on Unetched Concrete Adhesion, Patti Pull Test, Dry Concrete Pull-Off Strength, psi 835.8 100% concrete Failure Mode failure Chemical Resistance, tested on Cementitious Backer board, 24 Hour spot test. 72 hour recovery Gasoline No Effect Engine Oil Slightly Darkened Very Slightly Transmission Fluid Darkened Very Slightly Sodium Hydroxide, 1N Darkened Isopropanol No Effect Ethanol No Effect Brake Fluid No Effect Antifreeze No Effect Bleach No Effect Hydrochloric Acid, 1N Stained Propylene Glycol Very Slightly Darkened Salt Water, 5% solution No Effect
Supplier
Thin as needed with deionized water to application viscosity Suppliers: (1) OMG – OM Group (3) Michelman
(2) R.T. Vanderbilt Co. (4) BYK
Formulation Physicals NV by Weight NV by Volume VOC (g/l) Pounds per Gallon pH Viscosity, Stormer, KU Viscosity, #2 Zahn, seconds
25.0 % 24.0% 69.8 8.40 8.7 47.0 14.0
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BECKOSOL AQ 520 Page 2
QUV-A 340 Expos ure (20 hours UV @ 60°C, 4 hours condensation @ 50°C) Tested on Red Concrete Pavers Beckosol AQ 520 “Wet Look” Sealer
Commercial Solventborne “WetLook” Sealer 726.0
VOC, g/L 69.8 Initial Readings 1 ΔL (compared to uncoated -6.58 -6.97 paver) 60° Gloss 0.5 0.4 After 1000 Hours Exposure 1 ΔL (compared to uncoated -1.03 -1.78 paver) Recoatability Ease of recoating Easily recoats Easily recoats 1 ΔL after recoat (compared to -6.57 -5.67 uncoated paver) 1 The larger the negative value the darker the appearance on the paver.
Commercial Waterborne “Wet-Look” Sealer 96.0 -1.61 0.8 0.21 Easily recoats 0.24
Microscopy of Coated Pavers 40X Beckosol AQ 520
Commercial “Wet Look” Solventborne
Good “Wet Look” App earan ce
Poor “Wet Look” App earan ce
High Tg Latex (Poor wetting & coalescence)
Commercial “Wet Look” Waterborne Acrylic (Film formation on surface)
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BECKOSOL AQ 520 Page 3
