ADTEX™

Definition

ADTEX™ is a family of functional polyolefin tie-layer resins developed by Mitsubishi Chemical Group Performance Polymers (MCPP) for multilayer plastic fuel tanks, fuel system components, and fluid-handling tubing in automotive applications Depending on the supplier and context, it may designate either:
- Functional polyolefin tie-layer resins that act as adhesive interlayers to bond otherwise incompatible polymers in co-extruded or blow-molded multilayer structures (e.g., plastic fuel tanks, fuel/vapor lines, coolant tubing).
- Engineered textile and nonwoven reinforcements and surfacing materials (veils, scrims, tapes, and fabrics) used in composites and laminates to improve mechanical performance, bonding, and surface finish.

Adhesion between dissimilar polymers: Promotes robust bonding between non-polar polyolefins (e.g., HDPE) and more polar barrier or functional layers (e.g., EVOH, PA), enabling durable multilayer constructions.
Chemical resistance and low swelling: Designed for prolonged exposure to gasoline, diesel, ethanol blends, and glycol–water coolants with controlled dimensional change.
Thermal durability: Grades available for continuous service typical of under-hood and thermal-management circuits (approximately up to 100–110 °C, grade dependent).
Processability: Optimized for co-extrusion, blow molding, and tubing extrusion; maintains interlayer adhesion through forming and service.
Permeation control support: By enabling effective barrier layers, helps multilayer systems achieve low hydrocarbon permeation targets.
Lightweighting: Facilitates substitution of metal or thick single-material parts with lighter, high-performance multilayer plastics.

Reinforcement and toughening: Adds in-plane strength, stiffness, and interlaminar toughness in thermoset and thermoplastic composites, improving stiffness-to-weight ratio.
Dimensional stability: Tailored weave/nonwoven architectures mitigate print-through, warpage, and distortion during molding and thermal cycling.
Adhesion promotion: Carrier scrims/veils and surface chemistries improve bonding at laminate–substrate and fiber–matrix interfaces.
Surface finishing: Surfacing veils enhance Class A appearance and paintability by reducing fiber imprint and smoothing surface roughness.
NVH and damping: Certain constructions provide acoustic absorption or damping to reduce noise, vibration, and harshness.
Electrical/dielectric control: Select variants offer controlled dielectric behavior or partial conductivity to support EMI shielding layups or ESD pathways.
Thermal and chemical resistance: Fiber and binder choices provide resistance to automotive fluids, humidity, and elevated temperatures.
Process compatibility: Available constructions suited for infusion, RTM, prepreg/autoclave, compression molding, and overmolding.
Lightweighting: Enables weight reduction in panels, closures, and structural inserts.

ICE and hybrid vehicles: Tie-layer grades enable lightweight multilayer plastic fuel tanks and fuel/vapor components that meet permeation regulations; textile grades contribute to lightweight, dimensionally stable composite panels and structural parts.
Electric vehicles: Tie-layer grades support multilayer coolant lines and other fluid-handling tubes for battery and power electronics thermal management; textile grades are used in battery enclosures, underbody shields, and covers where surface quality, stiffness, and integration of thermal or EMI functions are important.
Manufacturing efficiency: Both families are engineered for consistent handling and high-throughput, automated processing (co-extrusion, blow molding, infusion, RTM, compression molding, autoclave, and overmolding).

Multilayer plastic fuel tanks (e.g., HDPE/EVOH/HDPE) with adhesive tie layers between incompatible polymers.
Fuel and vapor lines, filler pipes, and related components requiring chemical resistance and low permeation.
Battery cooling and thermal-management tubing carrying glycol–water mixtures in multilayer constructions.
Other co-extruded or blow-molded multilayer ducts, reservoirs, and containers.

Exterior Class A composite body panels and closures (surfacing veils to minimize fiber print-through and enhance paint finish).
Battery enclosures, covers, and underbody shields (reinforcing and surfacing layers compatible with flame-retardant systems).
Structural inserts, seat structures, interior modules, and composite–metal hybrids (adhesive carriers and bond-line control).
Laminates requiring damping or acoustic absorption within sandwich constructions.

Confirm which ADTEX™ family is intended; the mark is proprietary and may refer to different product lines depending on the supplier.
Tie-layer grades are typically specified by base polymer type (functionalized polyolefin), melt index, density, adhesion to specific substrates (e.g., HDPE/EVOH, HDPE/PA), processing method, and fuel/coolant resistance. Permeation performance is governed by the complete multilayer design.
Textile grades are specified by fiber type (glass, carbon, aramid, polymeric), areal weight (g/m²), thickness, drape, permeability, binder/sizing chemistry, resin compatibility (epoxy, vinyl ester, polyester, PA, PPS, PEI), and any FST or flammability ratings.
Grade-specific technical data sheets and processing guides should be consulted to verify chemistry, operating temperature ranges, mechanical properties, and regulatory compliance.

Related: tie-layer resin; functionalized polyolefin; adhesive interlayer; compatibilizer; co-extrusion adhesive; surfacing veil; glass/carbon veil; scrim; reinforcing fabric; nonwoven reinforcement; interleaf; adhesive carrier; structural tape.
Not strict synonyms: prepreg, core materials, or structural adhesives (though ADTEX™ materials may be used alongside these in a build-up).

ADTEX™ is a trademark of its respective owner(s). Always consult the originating supplier’s documentation for the exact product scope and properties.