Description
The ASI 502 black 10.2 oz cartridge holds black 100% RTV acetoxy silicone from American Sealants, sized for a standard caulking gun. Black is one of ASI 502’s opaque standard colors, used where a solid black bead suits the joint in HVAC, appliance, refrigeration, and kitchen and bath work. It cures to a flexible silicone rubber, meets NSF Standard 51 for incidental food contact, and is UL Recognized. Made in the USA.
Part of the ASI 502 family. This is the black 10.2 oz cartridge. ASI 502 comes in 15 colors, 7 standard and 8 translucent. See every ASI 502 color, with the full color chart and application steps.
Key Product Details
| Property | Value |
|---|---|
| SKU | ASI-502-BLACK-10C |
| Color | Black |
| Color group | Standard (opaque) |
| Package | 10.2 oz cartridge |
| Dispensing | Standard caulking gun sized for 10 oz cartridges |
| Chemistry | One-component 100% RTV acetoxy silicone, moisture cure |
| Viscosity (Spindle 7, 4 rpm) | 902,000 cps |
| Skin formation time (70°F, 50% RH) | 10 minutes |
| Typical cure rate | 24 hours (1/8 in bead) |
| Full strength | 7 days |
| Hardness (ASTM C661) | 25 Shore A |
| Tensile strength (ASTM D412) | 264 psi |
| Elongation at break (ASTM D412) | 500% |
| Joint movement | 25% (ASTM C920 Class 25) |
| Extrusion rate | 365 g/min |
| Density (ASTM D1475) | 8.5 lb/gal |
| Gun grade | Pass, non-slump |
| QUV weathering (ASTM G154) | Pass, 10,000 hours |
| Application temperature | -35°F to 150°F |
| Service temperature | -70°F to 400°F, intermittent to 450°F |
| Primer | Not normally required |
| Paintable | No |
| Approvals | 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 (File No. E209770) VOC compliant (23 g/L, ASTM D2369) |
| Shelf life | 12 months from date of shipment at 70°F and 50% RH |
| Country of manufacture | USA |
Choosing ASI 502 Black
- Standard colors are opaque, so the bead reads as solid black on the finished joint.
- Tool within about 10 minutes of application, before the skin forms. A tooling spatula keeps the bead consistent across a long run.
- The black cartridge is the same ASI 502 formula as every other color, with the same data sheet properties.
- Black also comes in a 2.8 oz squeeze tube for touch-up without a caulking gun.
- Running production volume? Pails and drums are available on request. Call us to set it up.
Frequently Asked Questions
Is ASI 502 black food safe?
ASI 502 meets NSF Standard 51 and FDA Regulation No. 21 CFR 177.2600, and ASI’s data sheet says it’s acceptable as a sealant on surfaces with incidental food contact. The black cartridge is the same ASI 502 formula.
Can you paint over ASI 502 black?
No. ASI 502 isn’t paintable. For joints that get painted, use a paintable sealant such as ASI 174 siliconized acrylic latex.
How long does ASI 502 black take to cure?
ASI 502 skins in about 10 minutes and cures in about 24 hours for a 1/8 in bead at 70°F and 50% RH. Strength keeps building for 7 days. Cold, dry air and confined joints slow the cure.
Is ASI 502 black acetoxy or neutral cure silicone?
ASI 502 is an acetoxy cure silicone. It releases a vinegar odor while it cures and skins in about 10 minutes. For concrete, sensitive metals, or low-odor jobs, ASI makes a neutral cure silicone, ASI 335.
Related Products
- ASI 502 100% RTV Silicone family page for every color, the color chart, and application steps
- ASI 502 100% RTV Silicone, 2.8 oz Squeeze Tubes for touch-up in clear, white, and black
- Albion 7/8 in Caulk Tooling Spatula for tooling the bead
Questions on fit or color for your joint? Call (800) 220-1966 or email [email protected].
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