Product No 910 Flashing Sealant

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DESCRIPTION: PRODUCT NO. 910 FLASHING SEALANT is a high performance one-part, moisture curing, and room temperature vulcanizing (RTV) 100% silicone flashing sealant combined with reinforcing materials to provide strong seal-ability around roof fasteners, transitions and penetrations. PRODUCT NO. 910 FLASHING SEALANT has ultrahigh strength and remains very durable. It will maintain its integrity on fasteners and penetrations with movement. PRODUCT NO. 910 FLASHING SEALANT exhibits excellent unprimed adhesion to concrete, metals and most other roofing substrates, provided they are clean, dry and free of dust and frost. PRODUCT NO. 910 FLASHING SEALANT is unaffected by sunlight (ultra-violet rays), ozone, temperature extremes, rain and snow. It has a long service life, and it was designed to perform between -60°C to 200°C (-76°F to 392°F).

USES: •Repair material for metal and SPF roofs •Seal fasteners, seams and details on low and semi-steep sloped roofs •Pipe penetrations through roof decks in metal flashings •Concrete, metal and most construction substrates •Mold and mildew resistance

SURFACE PREPARATION: All penetrations must be clean, dry and free of contaminants before PRODUCT NO. 910 FLASHING SEALANT is applied. Dust and loose particles must be blown out of the joint with oil-free compressed air, moving only in one direction. An oily surface may reduce adhesion.

APPLICATION: Always test adhesion before applying to different substrates. PRODUCT NO. 910 FLASHING SEALANT is ready-to-use and requires no mixing or additives. Apply PRODUCT NO. 910 FLASHING SEALANT to roofing substrate, fastener or penetration using appropriate caulking gun, brush, trowel, joint knife or plastic spatula to achieve a uniform membrane over the transition surfaces. Top coat with PRODUCT NO. 990 FOREVER-COAT Silicone Roof coating when dry to touch. PRODUCT NO. 910 FLASHING SEALANT can be applied in a single coat. Spread uncured PRODUCT NO. 910 FLASHING SEALANT to extend a minimum of 4” (100 mm) over the surface of the roof. Regularly monitor wet film thickness during application to ensure adequate uniform coverage. Coverage may vary depending on application technique and nature of substrate. Curing begins as soon as the sealant comes in contact with air. Application at temperatures below 4°C (40°F) will slow curing, while increased levels of humidity will aid curing. Tooling should be done before skin-over takes place. Remove wet material from application/spreading tool with a rag before the material cures. Carefully use appropriate cleaning agent, such as citrus solvent or odorless mineral spirits, to remove cured material from tools. For best results, follow precautions on packaging.

STORAGE: PRODUCT NO. 910 FLASHING SEALANT, when stored in original, unopened container in dry, shaded conditions, away from sources of heat or ignition, and stored below 32°C (90°F), has a shelf life of 12 months from date of manufacture.

HANDLING PRECAUTIONS: Product safety information required for safe use is not included. Before handling, read product safety data sheets and container labels for safe use and health hazard information. Safety data sheets are available on the TRC website at: www.

PHYSICAL PROPERTIES: 100% Silcone Flashing Sealant Durometer Hardness 43 points (ASTM D2240, Shore A) Tensile Strength 160 psi (11 kg/cm² ) (ASTM D412) Elongation at Break 67% (ASTM D412) Tear Resistance 27 ppi (4.7 kN/m) (ASTM D624, Die B)

*NOTE: Percentages stated are + or -5% Approx. Shipping Weights: (All approximate weights include container) weight per gallon approximately 14 lbs.

LIMITED WARRANTY AND DISCLAIMER: To the best of our knowledge, the technical data contained herein is true and accurate at the date of issuance and is subject to change without prior notice. User must contact Tucson Rubberized Coatings to verify correctness before specifying or ordering. No guarantee of accuracy is given or implied. Liability, if any, is limited to replacement of product unless installed by an approved contractor in accordance with Tucson Rubberized Coatings warranty procedures and program. For limited manufacturerʼs warranty and disclaimer information, visit our website at:

Additional information

Weight 65 kg
Dimensions 15 × 15 × 18 cm
Durometer Hardness

43 points

Tensile Strength

160 psi (11 kg/cm² )

Elongation at Break


Tear Resistance

27 ppi (4.7 kN/m)




5 Gallon