Gaskets, profiles, tubes and parts in FVMQ, PVMQ and VMQ silicone for sealing electrical cabinets, cable penetrations, ventilation ducts and controlled areas. Thermal range −110 °C to +315 °C. Manufactured under ISO 9001 + EN 9100 in ISO 8 cleanroom with traceability per NF EN ISO 19443.
Elastomer components in nuclear installations operate in controlled areas and auxiliary services (no contact with the primary circuit), subjected to low-to-medium dose gamma and beta radiation, partial vacuum, differential pressure, oxidising agents and prolonged thermal cycles. The nuclear supply chain is governed by NF EN ISO 19443, complementary to ISO 9001. Chemical family selection (general VMQ, cryogenic PVMQ or fluid-resistant FVMQ) depends on the operator's qualification dossier.
Operation between −110 °C (PVMQ Series 5 cryogenic) and +300 °C continuous with peaks up to +315 °C (VMQ Series 9). Prolonged thermal cycles with mechanical properties stabilised by post-cure in sealed stainless-steel oven. NF ISO 188 accelerated ageing tests documented batch by batch.
Stable behaviour of the VMQ, PVMQ and FVMQ families under low and medium gamma and beta radiation doses in controlled areas and auxiliary services. Qualification of each formulation to its specific cumulative dose is the responsibility of the nuclear operator per its qualification dossier.
Resistance to ozone, mineral oils, dilute acids and oxidising agents. Low volatile emission after post-cure, important for environments with partial vacuum or differential pressure. NF ISO 1817 immersion testing available according to the service fluid.
Nuclear supply chain documented per NF EN ISO 19443 (complementary to ISO 9001). Each batch leaves with a unique number, compound mechanical data sheet (NF ISO 37 tensile, NF ISO 7619-1 Shore A hardness, NF ISO 815-1 compression set) and dimensional control plan per ISO 3302-1 E1 (extrusion) or M2 (moulding).
The Apt plant (France) operates extrusion and moulding of compounds for auxiliary nuclear services under ISO 9001 + EN 9100 with an ISO 8 cleanroom per ISO 14644-1. The supply chain is documented per NF EN ISO 19443. Each batch leaves with the compound CoA, mechanical data sheet, ISO 3302-1 dimensional control plan and certificate of conformity to feed the operator's qualification dossier.
Regulatory framework covering system, formulation and product for silicone components in the nuclear supply chain and advanced energy. Specific qualification to the actual nuclear application is the responsibility of the operator's dossier.
| Standard | Scope of application |
|---|---|
| NF EN ISO 19443 | Quality management system for the nuclear supply chain |
| ISO 9001 | General quality management system |
| EN 9100 | Aerospace quality management system applicable to dual nuclear+aero scopes |
| ISO 10993-11 | Subacute and subchronic systemic toxicity test of the formulation |
| NF ISO 37 | Tensile strength and elongation at break of the elastomer |
| NF ISO 34-1 | Tear resistance · type C specimen |
| NF ISO 7619-1 | Shore A hardness with penetrometer |
| NF ISO 815-1 | Compression set |
| NF ISO 188 | Accelerated ageing and heat resistance |
| NF ISO 1817 | Action of liquids · immersion test and chemical compatibility |
| ISO 3302-1 | Dimensional tolerances · M2 (moulding) and E1 (extrusion) |
| ISO 14644-1 | Cleanroom classes · ISO 8 cleanroom for critical production |
| REACH (CE 1907/2006) | Registration, evaluation and restriction of chemical substances |
| RoHS (2015/863) | Restriction of hazardous substances in electrical equipment |
Four series of the Progress catalogue cover the typical scenarios of the nuclear and advanced energy sector: extreme temperature in thermal systems, general-purpose sealing, high tear strength in zones with mechanical handling and cryogenics for very low temperature auxiliary circuits.
Peroxide-cured VMQ with high-temperature additives · Shore A 40-68 · operating range −60 / +300 °C with peaks up to +315 °C. For gaskets and sealing in thermal systems, hot air ducts and zones close to high-temperature process equipment. Highest continuous temperature in the catalogue.
Peroxide-cured VMQ · Shore A 10-90 (widest range of the catalogue) · range −60 / +200 °C (+300 °C transient). For general-purpose gaskets, profiles and technical parts in controlled areas. Multiple FDA, CE 1935, BfR coverage according to colorant for dual-use applications.
Peroxide-cured VMQ · Shore A 60-70 · range −60 / +230 °C · tear resistance 30-35 kN/m. For inflatable gaskets, bellows, panel sealing and zones with repeated mechanical handling or shear stress. FDA in compatible versions.
Peroxide-cured PVMQ · Shore A 50 · operating range −110 °C / +200 °C. Polydimethylphenylvinylsiloxane with phenyl groups for cryogenics and vibration at very low temperature. For components in very low temperature auxiliary circuits, advanced cooling systems and zones with thermal shock.
The base polymer arrives with the supplier's CoA and technical declaration documenting the chemical family (VMQ, PVMQ or FVMQ). Each banbury assigns a unique batch number maintained from formulation to final packaging — mixing, calendering, extrusion or moulding, post-cure in sealed stainless-steel oven and ISO 3302-1 dimensional control.
Each shipment leaves with a certificate of conformity under NF EN ISO 19443, compound mechanical data sheet (NF ISO 37 tensile, NF ISO 7619-1 hardness, NF ISO 815-1 compression set, NF ISO 188 ageing), E1/M2 dimensional control plan and REACH / RoHS records. Final radiological qualification to the cumulative service dose is the responsibility of the operator.
Reference catalogue for sealing of electrical cabinets, cable penetrations, ventilation ducts, sampling lines and auxiliary services in nuclear installations and advanced energy. The specific application is confirmed against the operator's dossier.
| Product | Typical application in the sector | Datasheet |
|---|---|---|
| Flat seals | Sealing of electrical cabinets, instrumentation enclosures, hatches | View details |
| O-rings | Flanged connections in auxiliary services, ducts and hydraulic systems | View details |
| Custom profiles | Cable penetrations, panel sealing, entries to controlled zones | View details |
| Cellular cords | Sealing of doors and hatches with controlled compression | View details |
| Reinforced tubing | Sampling ducts, pressurised auxiliary-service lines | View details |
| Vulcanised seals | Sealing of doors, hatches and inspection openings | View details |
| Cellular profiles Series 15 | Lightweight sealing of ventilation ducts and technical hatches | View details |
| HCR technical parts | Compression-moulded components with complex geometry | View details |
Send us the service context (sealing, conduction, instrumentation), the area (controlled, auxiliary, technical), the thermal requirements, the target chemical family (VMQ, PVMQ, FVMQ), the operator's qualification dossier and the estimated series. We confirm the applicable series (S09, S02, S07 or S05), available tests, group plant and sample lead time. No purchase commitment.
