/The quiet fix: transparent gaskets that double as a 1 rubber grommet plug If you’ve ever chased a rattle in a panel or fought dust ingress in an outdoor junction box, you’ll know why clear elastomer gaskets are having a moment. From EV harness passthroughs to lab instruments, engineers want to seal, cushion, and still see what’s going on behind the panel. That’s where FY Gasket’s Transparent Rubber Gaskets, made in No. 228 North Street, Gaobeidian City, Hebei Province, come in. They’re built like premium gaskets, but many teams spec them as a tidy, see-through 1 rubber grommet plug for unused cutouts and cable management. What’s trending, and why transparency now? Three things: IP-rated assemblies are moving downstream (even “basic” kiosks want IP65+), visual inspection without teardown saves service time, and regulatory pressure is pushing toward RoHS/REACH-compliant elastomers. In fact, we’re seeing designers swap opaque grommets for clear gaskets so they can confirm seating, cable bend radius, and moisture before closing the enclosure. Honestly, that simple visibility prevents a lot of field returns. Product snapshot and specs FY’s parts are custom-cut or molded and can be configured to act as a sealing washer, edge grommet, or an elegant 1 rubber grommet plug for knockout holes. Below is a typical configuration; real-world use may vary. Material options Silicone, EPDM, NBR, FKM (fluoroelastomer), TPE; FDA-grade silicone available Hardness (Shore A) ≈ 30–80 (ASTM D2240) Tensile strength ≈ 6–12 MPa (ASTM D412) Compression set ≈ 15–30% at 70°C/22h (ASTM D395) Temperature range -40°C to +200°C (material-dependent) Ingress protection Up to IP67/68 with correct housing design (IEC 60529) Tolerances Around ISO 3302-1 M2/M3; tighter on request From compound to carton: how it’s made Materials are mixed in-house, then tools are designed and cut for your geometry. Parts are compression or injection molded, vulcanized, deflashed, and batch-tested. Typical checks: IRHD/Shore A, tensile/elongation, compression set, dimensional CMM, and accelerated aging (ozone per ASTM D1149). Service life? In normal indoor use, I’d expect 8–10 years; harsh UV/salt fog environments may average 3–7, depending on compound and thickness. Where they’re used EV battery and charger housings; cable passthroughs and knockout covers Outdoor LED signage and CCTV junctions (quick IP seal you can visually verify) Medical and lab equipment where clarity helps inspection or fluid tracing Food/packaging machinery with FDA silicone options Marine/HVAC panels as a neat 1 rubber grommet plug for unused ports Customer sentiment? Many buyers say the clear finish makes installs faster and QC calmer—“you can literally see the seal.” Hard to argue. Vendor comparison (quick take) Vendor Lead time MOQ Material range Certs & reports Price index FY Gasket (Hebei) ≈ 10–18 days tooling; 7–12 days production Flexible Silicone/EPDM/NBR/FKM/TPE ISO 9001, RoHS/REACH; PPAP/CoA on request $$ Vendor A (catalog) Stock or 2–4 weeks Pack-based Standard silicone/EPDM Basic CoC $–$$$ Vendor B (job shop) 3–6 weeks Moderate Mixed; limited clear grades Variable $$ Mini case notes Outdoor LED cabinet: Switched from opaque grommets to clear gaskets—technicians could verify cable seating; IP67 pass rate improved by ≈11% across 500 units. Benchtop analyzer: FDA-grade silicone plugs allowed quick visual leak checks; assembly time per unit dropped about 6 minutes. Compliance, testing, and the fine print Compounds are RoHS/REACH compliant; UL 94 ratings available by formulation (ask early). Testing follows ASTM/ISO methods with CoA/PPAP support. If you’re targeting extreme UV or oils, say so—material selection is half the victory. Authoritative citations ASTM D2240 – Standard Test Method for Rubber Property—Durometer Hardness ASTM D412 – Standard Test Methods for Vulcanized Rubber—Tension ASTM D395 – Compression Set of Rubber IEC 60529 – Degrees of protection (IP Code) ISO 3302-1 – Rubber tolerances for products UL 94 – Tests for Flammability of Plastic Materials EU RoHS 2011/65/EU and REACH Regulation (EC) No 1907/2006