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Your cart is empty.ASI 502 is a 100% RTV Silicone that is UL & NSF Recognized. ASI 502 is a one-part, moisture-curing RTV (room temperature vulcanizing) silicone that cures to a strong, silicone rubber that maintains long-term durability and flexibility. ASI 502 100% RTV Silicone is a non-slump sealant and can be applied to vertical or overhead surfaces without flowing or sagging. Because ASI 502 is a 100% RTV silicone sealant, it has excellent resistance to weathering including ozone, ultra-violet radiation, freeze-thaw conditions and airborne chemicals. Fully cured, ASI 502 has excellent adhesion to glass, metal, porcelain, ceramic, wood, most plastics and many other nonporous substrates. ASI 100% RTV Silicone (ASI 502) can be applied to surface temperatures from -18°C to +50°C (0°F to +120°F) and after curing, withstands constant operating temperatures from -70 to +400 degrees F. Typical Uses ASI 502 is an excellent sealant and/or adhesive for many industrial applications where a long-term, permanently flexible bond or seal is required.
wayne
Reviewed in the United States on September 9, 2024
Worked great for the project I had. Would buy again.
DWH
Reviewed in the United States on September 21, 2024
I installed a dash cover in my Chevy Avalanche that had cracked in two places. They sell you tubes that are difficult at best to squeeze the stuff out. This worked perfectly and was sufficient for the entire project. I have a battery operated caulk gun that dispensed this perfectly in no time at all. This stuff really sticks. God help you if you don't get things positioned right.
Speario760
Reviewed in the United States on December 2, 2024
The media could not be loaded.
Nathan
Reviewed in the United States on November 28, 2024
Fast ship and good price
MD
Reviewed in the United States on June 16, 2023
This product was first used on my house by a contractor and after two years noticed that the product had not cracked or shrunk away from the house. Recently we decided to remove vinyl siding from our home and had to recaulk some areas. We checked Amazon and found the same product here and immediately ordered it. For us, this is the only caulk we'll use on the exterior of our home. Highly recommend this product and seller. Will order again. Thank you!
Mary
Reviewed in the United States on December 12, 2022
This sealant is the best! I used it to seal my countertops, broken brick, holes in a wall etc. i highly recommend.
R AJAY PILLAI
Reviewed in India on April 4, 2019
As described product.
Jared
Reviewed in the United States on September 28, 2017
This it top of the line stuff. I used it to seal my desk before putting down epoxy. Since Epoxy gets hot while curing I thought it would be a good idea to get some heat resistant silicon. Worked great! Then I added too much glitter to the epoxy and ruined it. But still the silicon worked well. I used some cheap stuff from home depot and the epoxy ate right through it and ran all down my wall. Huge mess and about $20 in epoxy wasted. That's what inspired me to get this stuff. It's also really easy to work with and looks professional.
Karen Kent
Reviewed in the United States on April 2, 2017
This silicone cures fairly quickly to a memory holding state in about 20 minutes. I have so far not used this in food grade applications but incidental contact with water and electronics.In regard to other reviewers I've done some research on this for food applications. This sealant meets both 21 CFR 175.105 "Adhesives" and 21 CFR 177.2600 "Rubber articles intended for repeated use." as printed on the tube. Note that Title 21 applies to Food and Drugs so both of those headings apply to the safety of these substances in food applications. It is not known to me if there is any further risk of using a sealant in food applications vs a molding type silicone but I do know that the reasoning behind tin/platinum based curing (aka vulcanization) in silicone molding is that the end result is very flexible so that its stretchy. I wouldn't describe this as stretchy although it does remain rubbery after it has cured. Generally silicone caulk like this uses acetic acid and that is what you smell while it is curing. This process causes the silicone to bind up forming acetate and be tough compared to molding silicone but it is still flexible. Before you worry acetic acid and water is vinegar. But in pure form it is a skin irritant hints the labeling.
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