Delfingen Sleeving Product Selection Guide
Electro Insulation Corporation is a trusted Delfingen distributor serving North American manufacturers who need engineered cable protection from a name recognized worldwide in on-board network solutions. With over 50 years of manufacturing experience, Delfingen is a leading global automotive supplier of cable sleeving, fluid transfer tubing, protective components, and convoluted conduit used by OEMs across automotive, industrial, electrical, and appliance applications.
As your Delfingen distributor, Electro Insulation pairs decades of insulation expertise with same-day quote turnaround, hands-on technical support, deep stocking inventory, and quality systems registered to ISO 9001:2015 through NSF-ISR.
Industries We Support
Delfingen products run across automotive OEM and tier-one supply, EV battery and harness assembly, agricultural and off-highway equipment, white goods, HVAC, robotics, and medical device manufacturing.
The Delfingen sleeving portfolio meets the abrasion, temperature, flame, and fluid resistance specs that regulated industries require, while Electro Insulation handles the order flow, inventory commitments, rolling forecasts, and EDI integration that procurement teams expect from a stocking partner.
Coated and Uncoated Sleeving
Silicone-coated and acrylic-coated fiberglass sleeving in the NU-Sleeve and Nu-Flex families is the workhorse line for high-temperature environments where dielectric strength and flame resistance matter.
| Product | Product Features |
|---|---|
| NU-Sleeve SG-200 | Silicone coating |
| NU-Sleeve SG-200 HW | Heavy wall |
| NU-Sleeve VG-130 | Vinyl coating |
| NU-Sleeve SG-240 | High temperature silicone coating |
| Nu-Sleeve VPI-155 | Braided fiberglass with acrylic coating |
| Nu-Sleeve VPI-200 | Braided fiberglass with silicone coating |
| Nu-Sleeve AG-155 S | Acrylic coating |
| Nu-Sleeve AG-155 | Acrylic coating |
| Nu-Sleeve HV-565 | Acrylic coating – high voltage |
| Nu-Sleeve T117-FR | Braided fiberglass with high temp silicone coating, flame retardant |
| Nu-Sleeve T117-E | Braided fiberglass with high temperature silicone coating |
| Nu-Sleeve T117-HV | Braided fiberglass with silicone coating, excellent dielectric strength |
| Nu-Flex HT | Heat treated fiberglass |
| Nu-Flex HTS | Heat treated saturated fiberglass |
| Nu-Flex WHS-25 | Encapsulated fiberglass |
Flexible and Hard Smooth Tubing
PVC, polyurethane, silicone, and TPE smooth-walled tubing for fluid transfer, cable routing, machine guarding, and specialty convoluted applications.
| Product Name | Product Features |
|---|---|
| Silicone T117U | Silicone extruded unsupported tube |
| PVC Smooth Tubing | Flexible smooth tubing |
| TPV | Thermo-Plastic Elastomer |
| TPSO | Thermo-Plastic Elastomer |
| PUR | Polyurethane – Slit or non-slit |
| Oval Tubing | Specialty Convoluted Tubing – Slit or non-slit |
| Scroll | Rigid PVC, self-closing rigid tube |
Expandable Sleeving
The Langoflex and Conform-A-Sleeve families cover monofilament PET, PA, PPS, and PA6 sleeving used for harness bundling, noise reduction, abrasion protection, and tight-radius routing.
| Product Name | Product Features |
|---|---|
| Conform-A-Sleeve | Expandable Silicone Rubber Coated Braided Fiberglass Sleeving |
| Langoflex G | PET .010" (0.25 mm) monofilament |
| Langoflex G-FR | PET .010" (0.25 mm) monofilament flame retardant |
| Langoflex NTW | PA multifilament – High extreme abrasion resistance |
| Langoflex PET V0 | PET .010" (0.25 mm) monofilament non-flammable |
| Langoflex PA6 | Expandable sleeving – PA6 .010" (0.25 mm) monofilament |
| Langoflex DP | PET duo monofilament standard construction |
| Langoflex HD | Expandable sleeving – Polyester monofilament |
| Langoflex Sound PET | PET monofilament and multifilament – Noise reduction |
| Langoflex PPS | PPS .010" (0.25 mm) monofilament |
| Langoflex PET PA | PET .010" (0.25 mm) duo monofilament, PA .015" (0.38 mm) monofilament |
| Langoflex PET | Expandable sleeving – PET .010" (0.25 mm) monofilament |
| Langoflex TS | PET .009" (0.22 mm) monofilament |
| Langoflex Sound | Noise reduction |
| Langoflex PA | PA .010" (0.25 mm) standard construction |
| Langoflex PA-D | PA .010" (0.25 mm) multifilament dense construction |
| Langoflex PA-HD | PA .010" (0.25 mm) multifilament heavy duty construction |
Convoluted and Specialty Convoluted Tubing
Slit and non-slit convoluted tubing across polyethylene, polypropylene, polyamide, and polyester resins, including specialty profiles like Gafmil, Twin Truck, Polyflex UFW, and Techniflex for retrofit installs.
| Product | Product Features |
|---|---|
| US COT (English sizes) | Polyethylene, Polyamide, Polypropylene, Polyester convoluted tubing – Slit or Non-Slit |
| US COT (Metric sizes) | Polyethylene, Polyamide, Polypropylene, Polyester convoluted tubing – Slit or Non-Slit |
| Gafmil | Polypropylene – One piece slit closeable tube made of two C-shaped bells connected by a hinge, locking into each other |
| Cotflex | Elastomer convoluted tubing |
| Inoflex | Polypropylene, Polyamide – Customized convoluted tubing profile |
| NAG | Polypropylene, Polyester – Slit or Non-Slit |
| Syflex | Polypropylene, Polyamide – Slit or Non-Slit |
| Sinoflex | Polypropylene, Polyester – Slit or Non-Slit |
| Soflex | Polypropylene, Polyester – Slit or Non-Slit |
| Soford | Polypropylene, Polyester – Slit or Non-Slit |
| Techniflex | Polypropylene, Polyester – A tongue under the slit allowing closure after cable insertion |
| Twin Truck | Double C-shaped shell locking into each other (UFW profile) |
| Twin Flex | Double C-shaped shell locking into each other |
| Polyflex C | High temperature fluorinated plastic – Slit or Non-Slit |
| Polyflex NP | Polypropylene, Polyamide, Thermoplastic elastomer – Slit or Non-Slit |
| Polyflex AHW | Polypropylene, Polyamide, Thermoplastic elastomer – Slit or Non-Slit |
| Polyflex UFW | Polypropylene, Polyamide, Thermoplastic elastomer – Slit or Non-Slit |
Tubular, Wrappable, and Shrinkable Sleeving
Nu-Tube, Nu-Wrap, Nu-Flat, and Nu-Shrink address cut-through resistance, hook-and-loop wrap closure, woven shrinkable jacketing, and high-tenacity polyester flat braid.
| Product | Product Features |
|---|---|
| Nu-Tube PA | Cut-through resistant PA sleeve |
| Nu-Wrap PA | Hook/Loop system PA band |
| Nu-Flat PA | Polyamide multifilament – Tubular, Wrappable & Shrinkable Sleeving |
| Nu-Shrink | PET woven shrinkable sleeve |
| Nu-Crush V1 | Cut-through resistant PET HD sleeve |
| Nu-Crush SC | High tenacity polyester self-closing sleeving |
Reflective Sleeving and Heat Shield
Aluminized fiberglass constructions in the Nu-Shield and Nu-Kool families protect harnesses from radiant heat near exhaust manifolds, turbo housings, high-wattage lighting, and battery enclosures.
| Product | Product Features |
|---|---|
| Nu-Shield FG | Fiberglass woven, Aluminized foil |
| Nu-Shield FG2A | Fiberglass woven, Aluminized foil |
| Nu-Shield NW | Aluminized foil fiberglass reinforced |
| Nu-Kool SC-G | Self-closing reflective sleeve |
| Nu-Kool T-G | Reflective fiberglass sleeve |
| Nu-Kool T2-G | Reflective fiberglass sleeve – light |
| Nu-Kool T-P | Tubular PET reflective sleeve |
| Nu-Kool CP | Glass fiber fabric, Aluminized foil corrugated pipe |
Self-Closing Sleeving
Nu-Guard SC sleeving installs over existing harnesses without breaking connectors, with flame-retardant and EMI-shielded variants available.
| Product | Product Features |
|---|---|
| Nu-Guard SC-P FR | Self-closing PET flame retardant sleeve |
| Nu-Guard SC-P | Self-closing PET sleeve |
| Nu-Guard SC2-P | Self-closing PET sleeve – light |
| Nu-Guard SC2-P ADH | Self-closing PET sleeve – adhesive |
| Nu-Guard SC3-P | PET monofilament, texturized multifilament self-closing sleeving |
| Nu-Guard EMI HV | Saturated PET monofilament, tinned copper – Electromagnetic Shielding |
Tubing Accessories and Delfingen Fasteners
Delfingen fasteners, convolute closure accessories, branching components, and identification markers complete the system, with locking clips for serviceable runs and Y-split fittings for harness branches.
| Product | Product Features |
|---|---|
| Branching Accessories | Branching, Fastening & Closure Accessories |
| Convolute Closure Accessories | Branching, Fastening & Closure Accessories |
| Fastening Accessories | Branching, Fastening & Closure Accessories |
Frequently Asked Questions About Delfingen Sleeving
How long does it take to get a quote on Delfingen sleeving?
Most quotes go out the same business day. Custom configurations or large project bids may need a bit longer if we're confirming production minimums with the factory, but you'll hear back from a representative within 24 hours either way.
What certifications and compliance documents are available for Delfingen sleeving?
Delfingen sleeving carries UL, CSA, automotive, and IATF documentation across most product families. Material safety data sheets, RoHS statements, REACH declarations, and PPAP packages are available on request when your supplier qualification process needs them.
Can Electro Insulation hold blanket inventory for scheduled releases?
Yes. We support blanket orders with scheduled releases, kanban replenishment, consigned inventory programs, and VMI relationships for OEMs running production lines with steady draw. Talk to your sales representative about setting up a forecast and release schedule.
Request a Quote
Talk to a specialist about Delfingen sleeving or any of the items above. Send us your part numbers, application details, target quantities, and any required certifications, and we'll respond with pricing and lead time. Our team has supported harness shops, OEMs, contract manufacturers, and MRO buyers for over 50 years, and we can cross-reference Delfingen part numbers from competing catalogs if you're consolidating suppliers. Call 1-800-247-2114 to speak with an Electro Insulation representative directly.