Description
CHT Group AS1740C is a clear, one-part, neutral-cure silicone sealant adhesive built for electronics protection and cable sealing work, and it is a straightforward calk substitute anywhere a job calls for a flowable, self-leveling seal instead of a stiff tube of hardware-store material. It ships in a 310 ml cartridge and cures through roughly 3mm of depth in 72 hours at standard room temperature and humidity, which is fast enough for most bench and line schedules.
Where this calk alternative is specified
AS1740C is formulated to protect fiber optic cable splices, seal cable entry points into distribution boxes, and provide a protective conformal coating over electronic assemblies exposed to moisture, vibration, or minor mechanical contact. It includes a UV tracer dye so technicians can verify full, even coverage under UV light before a box or enclosure gets closed up, a capability generic caulk tubes do not offer. It is compatible with copper, brass, steel, aluminum, and FR4 circuit board material, which covers most of the substrates found in a typical control panel or junction box build.
Handling this calk alternative on the bench
Dispense AS1740C from a standard 310 ml cartridge gun directly into the cavity or seam being protected, working it into corners and around lead wires so no air pockets remain. The material self-levels, which reduces tooling time versus a heavier-bodied sealant, and the working temperature range spans -62 C to 200 C once cured, so finished assemblies hold up in both cold storage and hot equipment enclosures. Keep a spare cartridge on hand for field service calls where a box has to be resealed on site.
| SKU | QTM-AS1740 |
|---|---|
| Cartridge Size | 310 ml |
| Color | Clear |
| Cure Type | One-part, neutral cure, UV tracer |
| Working Temp | -62 C to 200 C |
Browse the full silicone adhesives line for related cartridge and cure-type options, or visit CHT Group for background on this sealant family.
Need Help?
Need help matching cure time, cartridge size, or temperature range to your application? Call (800) 220-1966 or email [email protected].
