DESCRIPTION:
Honestjoy S20 Series coatings are solvent-free, single-component waterproof elastomeric
moisture-curing silicone coatings.
USAGE:
Honestjoy S20 Series are ideal for use as a maintenance coating system over pre-existing
elastomeric roof coatings, metal roofs, built-up roofing, mineral cap sheet, and weathered single ply
membranes (EPDM, PVC, Hypalon?, and TPO/CPA) on a roofing substrate where the membrane
surface is in sound condition, but requires a renewal of the membrane surface due to the normal
effect of aging and use.
Honestjoy S20 Series Coatings are the standard specification for liquid applied silicone coating used
in sprayed-in-place polyurethane foam roofing systems.
Honestjoy S20 Series Coatings may also be used over concrete, coatings, and over plywood
decking when properly applied over an approved base coat; please contact Gaco Western for
specific recommendation.
When properly applied, the coating system provides a seamless weather-tight seal that protects the
substrate from degradation caused by ultraviolet light, water and other normal weathering hazards.
COLOR:
S2000 White, S2022 Gray, S2048 Tan
S2029 Dark Gray available as special order only.
APPLIED PRODUCT DATA
WEATHERABILITY:
Excellent durability, color stability and chalk resistance.
TOXICITY:
Not for use in contact with edible substances or potable water.
CHEMICAL
RESISTANCE:
Excellent solvent and chemical resistance.
APPROVALS:
Underwriters Laboratory °C UL790-Class A
Factory Mutual °C FM4470 Class 1, ASTM E108 Class A
- Approved with GacoRoofFoam F2733 and F273
- Approved maintenance coating and cover over
FM approved single ply roofs, BUR,
cap sheets and metal roofs.
EnergyStar
Cool Roof Rating Council °C CRRC 0740-0012
Miami-Dade Product Control °C NOA 12-0426
Florida Product Control °C FL14724-RI
Texas Department of Insurance °C RC-353
PHYSICAL PROPERTIES:
Physical Properties ASTM Test Result
ASTM D6694
Requirement
Tensile Strength @ 73 °F D412 450 psi 150 min
Elongation at Break @ 73 °F D412 174 % 100 min
Tensile Strength @ 0 °F D412 574 psi 150 min
Elongation at Break @ 0 °F D412 169 % 100 min
Tear Resistance (Die C) D624 35.8 lbs/inch 20 min
Crack Bridging - Low Temperature @ -15 °F D522 Pass Pass
Permeance °C 20 mils DFT @ 73 °F/50% RH E96 °C B 5.0 Perms 2.5 min
Wet Adhesion
Spray Polyurethane Foam
C 794/D 903
Pass 2.0 min
Acrylic Coating Pass 2.0 min
Galvanized Metal with E5320 Primer Pass 2.0 min
BUR with E5320 Primer Pass 2.0 min
EPDM with E5320 Primer Pass 2.0 min
PVC with E5320 Primer Pass 2.0 min
8,670 Hour Immersion in 150oF Water D471 Not required
Tensile Strength D412 450 psi Not required
Elongation at Break D412 125 % Not Required
1000 Hrs. Accelerated Weathering G154
Elongation at Break @ 73 °F D412 371 % 100 min
Elongation at Break @ 0 °F D412 124 % 100 min
5000 Hrs. Accelerated Weathering G154
Elongation at Break @ 73 °F D 412 126 % Min 50%
Elongation at Break @ 0 °F D 412 124 % Min 50%
Appearance D6694 Pass No Cracking or Checking
Solar Performance
Honestjoy S2000 (white) meets the cool roof requirements of California Title 24
and the International Energy Conservation Code.
Property ASTM Method Initial
Solar Reflectance C1549 0.88
Thermal Emittance C1371 0.87
Solar Reflectivity Index (SRI) E1980 111
PACKAGED PRODUCT DATA
THEORETICAL
COVERAGE:
1.45 gallons per 100 sq. ft. provides 22 dry mils
NOTE: Actual coverage may be less due to surface profile, losses due to overspray and wind and residual coating left in the container.
SOLIDS:
Weight: Method 4041 Fed. Std. 141
Volume:
96.5%
95%
VOC:
35 g/l
FLASH POINT:
ASTM D3278
178°F (81°C)
STORAGE STABILITY:
Two years from date of manufacture when stored in sealed containers between 0 °F to 80 °F
(-17 °C to 26 °C)
APPLICATION
MIXING:
Mix before application to ensure uniform color and consistency.
THINNING:
Product should not be thinned.
PRIMER:
Existing silicone coatings should not be primed. On all other substrates, apply Honestjoy E5320
2-Part Epoxy Primer/Filler according to label directions.
APPLICATION:
Apply by brush or ? nap woven roller as received. For spray application, use as received;
consult Gaco Western's Silicone Spray Guide SG-Silicone for more information. For cold weather application, keep material stored above 65 °F (18 °C). Do not apply if rain is expected within 1 hour. For application in temperatures below freezing or above 120 °F (49 °C), contact Gaco Western.
- On smooth surfaces, apply one coat at the rate of 1.5 gallons per 100 square feet to achieve approximately 22 dry mils.
- On granulated and other rough surfaces, apply two separate coats at the rate of 1 gallon per 100 square feet per coat. Allow first coat to dry a minimum of 4 hours at 55 °F (13 °C) or higher, or until it can be safely walked on (product is moisture cure, low humidity will result in longer dry times); recoat within 4 to 48 hours.
- Coat all surfaces including expansion joint covers and flashings. Extra material is required at all edges and penetrations if neoprene sheet flashing is not used.
NOTE: Application rate is job-specific and losses due to overspray, surface profile and wind may occur. Additional material may be required to achieve 22 dry mils.
DRY TIME:
Final coat should be allowed to cure 24 to 48 hours, depending on temperature and humidity, before suitable for light foot traffic.
CLEAN UP:
Clean application tools and equipment with Honestjoy Silicone Solvent. Recirculate through lines and gun until residual coating is removed. DO NOT USE WATER OR RECLAIMED SOLVENTS.
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