#9400 ETERNA-SIL PREMIUM SILICONE MASTIC

#9400 should not be applied to unprepared surfaces including but not limited to those that are wet, dusty, oily, mildewed, heavily chalked, blistered or otherwise structurally unsound. Asphaltic and/or bitumous substrates may cause discoloration or bleeding of the silicone mastic. It is recommended that the use of Tropical’s 996 Eterna-Sil Premium Bleed Blocker be used prior to the application of #9400 to mitigate this discoloration and bleeding effect from occurring. Refer to Data Sheet for complete details.

Tropical’s #9400 Eterna-Sil Premium Silicone Mastic can be applied over properly prepared surfaces that exhibit ponded water, however, The National Roofing Contractors Association (NRCA) considers ponding water an undesirable non-standard roofing practice and recommends that all roof systems be designed and built to ensure positive drainage. (See the NRCA Roofing and Waterproofing Manual). Please contact Tropical Roofing Products Technical Department for any specific questions regarding the application of this product.

All surfaces to be coated must be clean, dry, and paintable. It may be necessary to power wash and/or prime to enhance adhesion. See application specification for more details.

#9400 should be applied as received and dilution with solvent is not recommended. If settling in the package has occurred, stir or shake the material prior to use.

#9400 can be applied by trowel, stiff brush or gloved hand.

Apply #9400 to ensure a uniform build and thorough coverage typically applied in one application. If applying in multiple applications, allow adequate time between each application for the mastic to cure before applying additional material. Final cured thicknesses must be free of voids, pinholes, cracks or blisters. Refer to Data Sheet for complete details.

#9300 Eterna-Sil Perma Patch is UV stable. No top coat is required. It is not intended to be painted or covered over with any product other than Tropical Roofing Products Silicone Roof Coatings.

Recommended to be applied at 80-120 linear feet. Application rates will vary by surface, porosity, and job conditions. Please consult Tropical Roofing Products for total dry film thickness requirements.

#9400 should not be applied at ambient temperatures lower than 40˚ F. Be sure that all surfaces are not wet or damp and that rain is not forecasted during application window or for at least 1 hour after application has ended.

Cleanup of equipment containing uncured material may be accomplished by cleaning with mineral spirits or toluene. DO NOT USE water or alcohol based solvents.

Tack Free cure in 2 hours. Dry to Touch cure in 6 hours. Cure time is dependent on temperature, humidity and film thickness.

18 months from date of manufacture when properly stored in cool, shaded, and dry conditions. #9400 can be stored in unheated warehouses during the cooler months without the risk of freezing.

D.O.T. Classification: Roof Coating, Not Regulated NFMC #170080