IP20 to IP68 Sealing: Coating, Silicone Tube and Extrusion
Nano coating, silicone tube and full silicone extrusion for LED strips from IP20 to IP68, with pressure and spray testing on every outdoor assembly.
IP-rated sealing protects the strip from dust and water by coating, sleeving or fully extruding the electronics. HFY LED produces IP20 bare strip, IP54 and IP65 coated strip, IP67 silicone tube and IP68 extruded profiles, pressure-testing every outdoor assembly at 0.3 bar for 60 seconds and spray-testing finished lightbox modules for 30 minutes.
When this process applies
Sealing options are applied to standard and custom strips up to 50 m. IP68 here means protection against jets and temporary immersion to 1 m, not continuous underwater operation. Pool and fountain installations require a potted gland and a driver located outside the water, and we quote those as a project rather than a strip.
Technical specifications
| IP20 | Bare FPC with adhesive backing |
|---|---|
| IP54 | Conformal silicone coating, 30–60 µm |
| IP65 | Silicone coating or heat-shrink sleeve |
| IP67 | Silicone tube, glued end caps, potted glands |
| IP68 | Full silicone extrusion, potted cable entry |
| Pressure test | 0.3 bar for 60 seconds, 100% of outdoor builds |
| Spray test | 30 minutes, IP65 lightbox modules |
Where it is the right choice
- Bathroom and kitchen lighting requiring IP44 and above
- Exterior facade and signage work at IP65 to IP67
- Pool surrounds, spas and fountains at IP68
- Cold rooms and wash-down areas in food production
Where it is the wrong choice
Stating this explicitly matters more than a capability list: if your part falls into one of these categories, another process will cost you less.
- Continuous immersion below 1 m, which needs a different product architecture
- Chlorinated pool water in permanent contact, where silicone degrades regardless of IP rating
- Installations where the driver is inside the wet zone — sealing the strip does not protect the driver
Equipment
- 2 silicone extrusion lines with in-line curing
- Conformal coating line with UV cure
- Pressure test rigs for 100% outdoor assemblies
- Spray test booth to IPX5
Process questions
Is IP65 enough for an outdoor sign?
Only if the sign cabinet itself is watertight. IP65 protects against water jets, but a cabinet that collects condensation will still fail: the water sits on the strip rather than hitting it. For outdoor signage we recommend IP67 modules and a cabinet drain, because the failure we see most is standing water, not spray.
Does sealing affect the light output?
A silicone tube costs 3–6% of flux through absorption, and a full extrusion costs 8–12% because the wall is thicker. This is accounted for in the quoted lumen figure rather than left for the customer to discover on site.
Related capabilities and products
Send a specification, get a quotation in 24 hours
Tell us the product type, run length, wattage, CCT, CRI and IP rating. You will receive a fixed price, a lead time, and the feed and driver arrangement in writing — no obligation, and no sales call unless you ask for one.