LSR-injected optics, gaskets, sealing profiles and transparent tubing in platinum-cure silicone with high light transmission, UV and ozone resistance and IP65-IP67 sealing. Formulations tested UL94 V-0 and EN 60598. Manufacturing under ISO 9001 in ISO 8 cleanroom with batch-by-batch traceability.
Silicone components for LED lighting operate under continuous UV radiation, humidity, outdoor exposure and prolonged thermal cycles without yellowing, losing light transmission or breaking luminaire sealing. Electrical safety of the luminaire is governed by EN 60598; the degree of protection (IP65, IP66, IP67) by IEC 60529; polymer flammability by UL94 V-0. Each formulation is tested before series approval and each batch ships with the compound CoA and dimensional control plan.
Platinum cure with no volatile by-products that degrade light transmission. Translucent and transparent versions for LSR-injected optics, secondary lenses and light guides in LED luminaires. Colour stability after thermal cycles and prolonged UV exposure.
IEC 60529 sets the degree of protection against dust and water. IP65: dust-tight and resistant to water jets. IP66: powerful jets. IP67: temporary immersion. Silicone selection (solid or cellular Series 15) and gasket geometry drive the final rating after assembly.
Series with UL94 V-0 coverage tested in the formulation, required in luminaires installed in regulated sectors (public, transport, healthcare, industrial). For railway scenarios, EN 45545-2 also applies to flame-retardant series S16 and S33.
Natural resistance of VMQ and PVMQ to continuous UV radiation without yellowing, to atmospheric ozone and to weather humidity. Suitable for outdoor lighting, industrial floodlights, urban lighting and architectural luminaires with exposure to the elements.
The Apt plant (France, 550 m² ISO 8) runs extrusion and moulding of optical compounds under ISO 9001. Top Tech Silicones (Italy, 1,500 m²) concentrates LSR injection with six dedicated presses, including an optical line for secondary optics, lenses and light guides injected directly onto the luminaire body. Each batch ships with the compound CoA, mechanical data sheet and reference to applicable UL94 / EN 60598 tests.
Regulatory framework on electrical safety, sealing, flammability and manufacturing for LED luminaires, industrial floodlights and architectural lighting systems. The final IP65-IP67 validation corresponds to the luminaire manufacturer.
| Standard | Scope of application |
|---|---|
| EN 60598 | General safety requirements for electrical luminaires |
| IEC 60529 | Classification of IP protection ratings (dust + water) · IP65, IP66, IP67 |
| UL94 V-0 | Vertical flammability test of polymers · formulation test |
| EN 45545-2 | Fire behaviour for luminaires installed in railway rolling stock |
| ISO 9001 | Quality management system |
| ISO 14644-1 | Cleanroom classes · ISO 8 room for production of optical components |
| ISO 3302-1 | Dimensional tolerances in elastomers · E1 (extrusion) / M2 (moulding) |
| NF ISO 37 | Tensile strength and elongation at break |
| NF ISO 34-1 | Tear strength · type C test piece |
| NF ISO 188 | Accelerated heat ageing of the elastomer |
| REACH (CE 1907/2006) | Registration, evaluation and restriction of chemical substances |
| RoHS (2015/863) | Restriction of hazardous substances in electrical and electronic equipment |
Four series in the Progress catalogue cover typical sector scenarios: transparent optics with platinum cure for LSR-injected lenses, high mechanical tear strength for sealing gaskets, cellular flame retardancy for railway luminaires and general all-purpose for enclosure sealing.
Platinum-cure VMQ · Shore A 20-90 (widest range in the platinum-cure catalogue) · range −60 / +200 °C (+300 °C transient). Translucent and transparent versions for secondary optics, injected lenses, light guides and diffuser elements. No volatile by-products that degrade light transmission over time.
Platinum-cure VMQ · Shore A 40-80 · high tear (33-55 kN/m) · no volatile by-products. For sealing gaskets, enclosure sealing of industrial floodlights and luminaires with frequent handling during maintenance. Added mechanical resistance without losing platinum purity.
Platinum-cure VMQ · Shore A 50-65 · range −60 / +180 °C (+215 °C transient). For LSR injection directly onto luminaire body or plastic enclosure · secondary optics, sealed connectors and optical components with complex geometry. Available only in extrusion and LSR.
Flame-retardant cellular VMQ catalysed with platinum · closed-cell structure · EN 45545-2 HL1 and HL2 classification. For sealing profiles in railway luminaires, on-board floodlights and systems with dual sealing and fire behaviour requirements.
The base polymer arrives with the supplier CoA and technical declaration of light transmission, refractive index and UV stability. Each banbury assigns a unique batch number maintained from formulation to packaging · mixing, calendering, LSR injection or extrusion, post-curing in a sealed stainless steel oven and ISO 3302-1 dimensional control.
Each shipment ships with a certificate of conformity, the compound mechanical data sheet (tensile NF ISO 37, hardness NF ISO 7619-1, tear NF ISO 34-1, ageing NF ISO 188), reference to the applicable UL94 V-0 tests, E1/M2 dimensional control plan and REACH / RoHS records. The IP65-IP67 validation of the assembled unit is confirmed by the luminaire manufacturer.
Reference catalogue for industrial and architectural LED luminaires, floodlights, LED displays, outdoor electronics, urban lighting and luminaires on board transport. The series choice is driven by optical demand, IP rating and applicable sector standards.
| Product | Typical application in the sector | Data sheet |
|---|---|---|
| LSR-moulded optics | Secondary lenses, light guides, diffuser optics moulded onto the housing | View details |
| Flat gaskets | Sealing of industrial luminaires and projectors with IP rating | View details |
| Platinum-cured O-rings | Optical closures in sealed luminaires, projectors and sealed housings | View details |
| Custom profiles | Sealing of architectural LED strips, perimeter and decorative luminaires | View details |
| Series 15 cellular profiles | Lightweight compressive sealing in technical luminaires and LED panels | View details |
| Cellular cords | Continuous sealing in lighting panels and outdoor housings | View details |
| Silicone tubing | Optical cabling, fibre ducts and outdoor LED line protection | View details |
| Vulcanised seals | Sealing of industrial projector housings and urban luminaires | View details |
Send us the type of luminaire (industrial, architectural, urban, transport-mounted), the target IP rating (IP65, IP66, IP67), the required light transmission, the exposure conditions (continuous UV, weather, temperature) and applicable standards (UL94 V-0, EN 60598, EN 45545-2 if rail). We confirm the applicable series (S12, S10, S30 or S33), available tests and sample lead time. No order commitment.
