TDS

Henry Company 999 N. Sepulveda Blvd., Ste. 800, El Segundo, CA 90245
Technical Services - Phone: [phone]
E-mail: [e-mail] www.Henry.com
Rev. Date: 04/06/2017
Henry® 887 TROPI-COOL® 100% SILICONE WHITE ROOF COATING
APPLY: Coating should only be applied to a clean, dry, frost-free, and fully prepared roof substrate as described above. It may be applied with
a 1/2" to 1" nap lint-free roller, brush, or commercial airless spray rig. Containers are packaged to keep latent moisture from prematurely
starting the curing process. After opening the container, try to use it up as soon as possible. Keep containers covered and sealed at all times
during use, when practical. If a skin forms in the container, simply remove the skin, mix the product, and use the rest. It should be applied in
one coat smoothly and evenly over the entire roof surface, including parapet walls at a minimum 1.5 gallons per 100 square feet. Dry film
thickness (DFT) should be a minimum of 22 mils. Coating must be evenly applied and pin-hole free. On steep-slopes, rough or aged surfaces,
additional coats may be required to obtain a uniform, consistent thickness. Ensure coating is fully cured prior to additional coating
installations. Cure times generally require a minimum of 2 to 6 hours depending on weather conditions. Complete additional coats within 48
hours. Waiting longer than 48 hours may require initial coat to have to be washed prior to application of additional coats. Apply subsequent
coats perpendicular in fashion to the previous coat. For example, apply 1st coat north and south; apply 2nd coat east and west. Polyurethane
foam should be coated within 24 hours of application. New concrete roofs must be allowed to cure for a minimum 28 days before coating.
Commercial Airless Spray Rig: If spraying, a commercial airless spray rig capable of producing a minimum of 3500 psi at the spray gun tip is
required. The pump should have a minimum of 3 gallons per minute output and be fed by a 5:1 transfer pump to prevent cavitation. Always
use components rated for pump pressure. Hoses should be Buna-N jacketed for prevention of moisture contamination. Hoses should have a
minimum I.D. of 3/4" and an adequate working pressure. The spray gun should be high pressure (5000 psi) with a reverse-a-clean spray tip,
having a minimum orifice of 0.030 and a 50° fan tip. Do not use hoses that have been used for acrylics because the liners absorb moisture and
initiate the silicone cure process.
NSF PROTOCOL P151: Number of coats: 1-3. Maximum Field Use Dry Film Thickness (mils): 30 (maximum 15 per coat). Recoat Cure
Time/Temperature: 24 hours at 100° F (38° C). Final Cure Time/Temperature: 48 hours at 100° F (38° C).
Please consult Henry
® Product Support for any specific questions regarding the application of this product.
Coverage
Approximately 320 square feet per 5 gallon size pail (approximately 100 square feet per 1.5 gallons). Dry film thickness (DFT) should be a
minimum of 22 mils. Coverage varies depending on surface texture and porosity.
Clean-Up
Clean-up of tools and spray equipment containing uncured material may be accomplished by cleaning or flushing with VM&P Naphtha or
mineral spirits.
Spray Equipment: This product cures by reacting with moisture and should not be left in spray guns, pump equipment, and hoses for
prolonged periods unless equipment contains moisture lock hoses, fittings, and seals. Equipment without these components will transmit
sufficient moisture vapor to gradually form cured material on hose walls and at unsealed connections potentially causing an increase in
operating pressure and material flow restriction.
Precautions
DO NOT THIN. Use extreme caution when applying and walking on silicone coated surfaces. Silicone coated surfaces are extremely slippery
and can create a fall hazard resulting in death or injury. Keep away from food. Not recommended for application at temperatures below 35° F
(2° C) or if rain is expected in less than 15 minutes of application. Lower temperatures and/or less humidity will typically result in slower cure
times. When transporting, make sure the pail is secured and the lid is tight to prevent spills. Store in a cool, dry, and shaded location. Ensure
lid is completely sealed.