Features
- Ideal for Industrial & Construction
- Mold & Mildew Resistant Resistant
- To UV Degradation & Weathering
- Withstands Extreme Cold & Extreme Heat
- One-Component, Easy To Use Formulation
- Adheres To Most Common Building Substrates
- Easy To Extrude At Cold Temperatures
- Non-Slump, Can Use On Overhead & Vertical Applications
- Excellent For Indoor & Outdoor Applications
- Creates A Waterproof Seal
Benefits
- 100% Silicone
- Chemical Resistant
- Creates a Waterproof Seal
- Easy to Dispense at Variety of Temperatures
- Excellent for Indoor and Outdoor Applications
- High Temperature Resistance
- Highly Flexibile/Allows for Movement
- Long Life
- Low Temperature Resistance
- Mold and Mildew Resistant
- Non-Slump – Overhead/Vertical Applications
- One-Component
- Rain Ready
- RTV
- Solvent-Free
- UV Resistant/Degredation
- VOC Compliant
- Weather Resistant
- Will Not Crack
- Withstands Extreme Temperatures
Properties
- *Intermittent temperature up to 450°F. Strength will start to develop immediately and continue increasing for 7 days after application. ASI recommends testing strength and adhesion on the 7th day. ASI 502 suggested application temperature range: -35°F to 150°F. Testing should be done to confirm temperature requirements are met. Information on this data sheet can change without notice and it is therefore not recommended that these figures be used in spec writing. If you have any questions contact manufacturer‘s sales and technical service department.
Substrates
- Glass
- Granite
- Marble
- Metal
- Ceramic
- Aluminum
- Most Types Of Wood
- Natural & Synthetic Fiber
- Most Fiberglass
- Most Painted Surfaces
- Some Plastics
Downloads
Certifications


- ASTM C920 Class 25, Type S, Grade NS, Use NT, G, O
- TT-S-01543A
- TT-S-00230-C
- MIL 46106B Type 1
- NSF Standard 51
- FDA Regulation No. 21 CFR 177.2600
- UL Recognized
- VOC Compliant (23 grams/liter ASTM D2369)
Additional information
ADDITIONAL COMMON APPLICATIONS
- Industrial, Construction
- HVAC/Ductwork Applications
- Appliance Manufacturing
- Refrigeration Units
- Walk-In Freezer Manufacturing & Installation
- Sealing Trailers
- Formed In Place Gaskets
- Sheet Metal
- Countertops
- Sanitary Seals
- Plumbing
- General Sealing & Adhering
- Marine Applications
- Telecommunications Including Coaxial Cable Connectors
- RV & Trailer Manufacturing Formed-In-Place Gasket Applications
- Kitchen & Bathroom
- Fireplace Manufacturing
- Sheet Metal Work & Sealing
Available Packaging
Notes
ASI 502 is stocked in squeeze tubes, cartridges, pails and drums. It can also be packaged in quart cartridges, sausage packs, semcos and pouches. Additional packaging may be available upon request. Inquire to ASI sales staff for additional information.
Related Products

EPO-TEK® OG142-87
Fiber Optic Epoxy Adhesive
Single component, low viscosity, UV curable epoxy for adhesive sealing and encapsulating fiber optic and optoelectronic packaging application.

ASI 335
Advanced Adhesion 100% Neutral Cure RTV Silicone Adhesive
ASI 335 Neutral Cure RTV Silicone is a one-part, non-slump, moisture cure sealant/adhesive that cures to form a tough rubber with long-term flexibility and durability.Due to the formulation, ASI 335 offers advanced adhesion to a variety of surfaces...

ASI 5900
Fast Grab Adhesive
ASI 5900 Fast Grab Hybrid Adhesive uses ASI’s innovative hybrid technology to develop immediate green strength to fixture substrates while the adhesive cures and provides a long-term, durable bond. ASI 5900 is 100% solids.It will not shrink and...

CONVERGENT STRION:FORTIFY MAX
Premium Concrete Densifier and Sealer
Not only is it remarkably easy to apply, but it can be applied at temperatures as low as 25°F – and no rinsing is required, making it not only simple but also easy on the environment. It can...

EPO-TEK® 353NDP
PROPEL FORWARD WITH EPO-TEK® 353NDP
Meet the next generation of high-performance solutions. EPO-TEK® 353NDP takes reliability, durability, and efficiency to unprecedented levels—crafted for the challenges of the AI and Machine Learning era, and critical industries like Datacom & Telecom, Defense, Aerospace, and Automotive. ...

CONVERGENT Pentra-Sil® (C&N)
pH Neutralizing Densifier and Hardener
Pentra-Sil® (C&N) cleans and neutralizes concrete floors that suffer from surface sweating and efflorescence. This treatment stabilizes the alkalinity in concrete surfaces by infusing lithium ions throughout the substrate.
EPO-TEK® OG142-87
Fiber Optic Epoxy Adhesive
Single component, low viscosity, UV curable epoxy for adhesive sealing and encapsulating fiber optic and optoelectronic packaging application.
ASI 335
Advanced Adhesion 100% Neutral Cure RTV Silicone Adhesive
ASI 335 Neutral Cure RTV Silicone is a one-part, non-slump, moisture cure sealant/adhesive that cures to form a tough rubber with long-term flexibility and durability.Due to the formulation, ASI 335 offers advanced adhesion to a variety of surfaces...
ASI 5900
Fast Grab Adhesive
ASI 5900 Fast Grab Hybrid Adhesive uses ASI’s innovative hybrid technology to develop immediate green strength to fixture substrates while the adhesive cures and provides a long-term, durable bond. ASI 5900 is 100% solids.It will not shrink and...
CONVERGENT STRION:FORTIFY MAX
Premium Concrete Densifier and Sealer
Not only is it remarkably easy to apply, but it can be applied at temperatures as low as 25°F – and no rinsing is required, making it not only simple but also easy on the environment. It can...
EPO-TEK® 353NDP
PROPEL FORWARD WITH EPO-TEK® 353NDP
Meet the next generation of high-performance solutions. EPO-TEK® 353NDP takes reliability, durability, and efficiency to unprecedented levels—crafted for the challenges of the AI and Machine Learning era, and critical industries like Datacom & Telecom, Defense, Aerospace, and Automotive. ...


Get in touch to learn more
Speak to us on 800-325-7040
Contact us