company tower banner
IB Roof Systems Company Logo

IB Roof Systems IB Silicone FG

IB SILICONE FG COATING is a high performance, moisture curing, 100% silicone, flashing grade mastic that is designed to seal all seams and fasteners on roofs in conjunction with IB Silicone systems.

Product Type: Solvent free (100% Solids) Sealant

Application Area: Seam Sealing

Cure Method: Moisture Cure

Application Method: Brush, Trowel

Technical Data Sheet
  • TypeDocument Name
View All Documents

Knowde Enhanced TDS

Identification & Functionality

Features & Benefits

Features
  • Plasticizer free
  • 90% solids by volume
  • Brush-able/trowel-able
  • Excellent adhesion to a variety of substrates
  • Unique formulation allows breathable film while providinga watertight membrane and permitting trapped moisture toescape
  • In most cases, eliminates need for 3 course application offabric reinforcement of seams and flashings.
  • Low VOC compliant, less than 50 grams/liter
  • Available in white or gray

Applications & Uses

Application Area
Application Method
Cure Method
Product Use

IB Silicone FG is used as a flashing material for most substratesand as a sealant on fasteners, seams, and penetrations on metalroofs in lieu of 3 course application and is compatible with IBSilicone coatings. Can be applied over most substrate types.

Coverage rate (approximate)

Approximate coverage rate is 3.0 gallons per 100 square feet (48wet mils) per pass depending on substrate type and roughness.
Yield (1 gal/100 sq. ft.) = 16 wet mils/14 dry mils.
See recommendations for specific applications. Yields will varydepending upon system selected and the smoothness andabsorbency of substrate.

Application
  • Fasteners: Tighten or replace all fasteners as necessary. In no case shall joints of seams be allowed to separate greater than 1/16 inch. Stitch screw any large gaps over overlaps that cause greater than 1/16 inch opening. Apply IB Silicone FG over the fastener to completely encapsulate the screw (approximately a 1-inch circle). Allow to dry for least 4 hours before proceeding with coating application.
  • Seams: Seal all field seams and flashings by applying IB Silicone FG at the rate of 3.0 gallons per 100 sq. ft. (48 wet mils) over the seam and feather in with a chip brush or trowel to an approximate width of 3-4” wide. Seal all penetrations etc. by applying IB Silicone FG in a 2” wide bead over the seam and feather in with a chip brush or trowel to an approximate width of 3-4” wide. Achieve a smooth 48 wet mil application over the treatment area. Allow to dry for least 4 hours before proceeding with coating application. Drying: Allow to dry for least 4 hours before proceeding with coating application.
  • Adhesion Test: Adhesion of the IB Silicone FG should always be checked. Apply 6” - 12” x 1” strip of the sealant and embed a piece of IB Fabric into the coating, leaving a minimum 2” tail of the fabric exposed. Allow 2-3 days for the coating to cure and perform a 90° pull test of the fabric tail to test adhesion of the sealant to the substrate.
Limitations
  • Refer to Substrate Preparation guidelines for proper preparation,cleaning and primer roof with any applicable bond enhancing primerbefore commencing with application of IB Silicone Coatings
  • This product cures by water evaporation only. Do not attempt toapply product when weather conditions are not conducive to drying.Refer to temperature and relative humidity precautions.
  • Application of materials with power spray equipment will requiringsome masking and erection of wind screens to prevent over sprayoccurrences and damage to surrounding structures, surfaces,vehicles, property or persons.
Clean Up

IB Silicone Coating cures by reaction with moisture. Do not leavematerial on tools for prolonged periods as it will cure. Scrap off any driedmaterials.

Application guidelines

Application Equipment
Brush: No reduction necessary. Use synthetic filament brushes. Donot over-brush as material may start to pull.
Trowel: No reduction necessary. Use straight edge or notched trowel.Do not over-trowel as material may start to pull.
Mixing: No thinning or reduction is necessary.
Surface Preparation
The substrate must be free of areas of ponding water, ice, snow, rainor dew, dirt, dust, grease, oil, foreign contaminants or other debris thatwould inhibit adhesion of coating. If such conditions exist, the roofsurfaces should be properly prepared and cleaned using the specified IBcleaning solution in order to receive the new coating system.Mildew must be removed by power washing and scrubbing with a bleach solution of 1 part bleach and 2 parts water. Repeat if necessary. Rinse thoroughly and allow to dry. Most substrates require a compatible primer to be applied prior to the application of the coating. Contact IBRS Technical Department at 800- 426-1626 for recommendations regarding specific applications. Verify that all drains, fasteners, flashings, penetrations, perimeter edges, seams, scuppers, and other areas of intended application are secure and watertight. Note: Any condition that is not secure or watertight will require a 3 course application of IB Silicone FG and IB Fabric.

Properties

Safety & Health

Temperature precautions

Temperatures affect viscosity, pumping and flow characteristics of the IB Silicone FG. Heat increases and cold decreases the flow-ability. For best results, apply when the temperatures are above 50oF (10oC). Do not apply this product below 32°F (0°C). May be applied to damp surfaces and is rain tolerant during cure. Upper temperature restriction (both air and substrate) for application of Silicone FG is 120°F (49°C). If the substrate temperature exceeds 120°F (49°C), IB Silicone FG should be applied during cooler periods of the day. No product should be applied unless surface temperature is above 32°F (0°C) minimum and 120°F (49°C) maximum.

Caution

Avoid prolonged and repeated contact with skin. Do not take internally.Avoid eye contact as this material has adhesive properties. Refer toproduct Safety Data Sheet (SDS) for additional information pertaining tothis product and prior to use or handling.

Packaging & Availability

Packaging Type
Packaging

2 gallon Pail

Ordering information
Item Code Description Size Class
9-SCFGG IB Silicone FG White 2-gal 55
9-SCFGW IB Silicone FG Gray 2-gal 55

Storage & Handling

Storage

Always store in cool and dry location. For best results, keepproduct stored above 50°F (10°C) or below 90°F (32°C). Do notstore in direct sunlight or in temperatures. Keep from freezing.Allow material to set at room temperature for 24 hours prior touse.

Disposal

Empty containers must be disposed of in an approved landfill in accordance with local, state, and federal regulations.

Shelf Life

12 months from date of manufacture. (unopened container stored at temperatures between 40°F and 90°F.