RAP 55D
RAP 55D is a grade of impact copolymer polypropylene (PP) resin designed primarily for injection molding applications. It features a balance of rigidity and impact strength, making it ideal for manufacturing durable plastic parts. This resin offers excellent processability, dimensional stability, and resistance to chemicals and moisture. RAP 55D is used across automotive, household, industrial, and packaging sectors due to its robust mechanical properties and versatility.
Primary Uses
Injection Molding Industry
Used to produce automotive parts such as battery cases, bumpers, interior trims, and dashboards due to its high impact resistance.
Common in appliance housings (e.g., vacuum cleaners, washing machine panels) and tool casings where strength and thermal resistance are important.
Utilized in industrial components like containers, crates, and pallets that require both toughness and structural integrity.
Ideal for consumer product packaging, including caps, closures, and rigid containers.
Electrical & Electronics
Used in electrical enclosures, junction boxes, and cable reels due to its excellent insulation and mechanical properties.
Furniture & Housewares
Applied in the manufacturing of chair shells, buckets, storage boxes, and fittings requiring strength and durability.
Secondary Uses
Compounding & Blending
Acts as a base resin in masterbatch production, especially for impact-modified compounds and color concentrates.
Construction Industry
Used in pipe fittings, panels, and mounting elements requiring light weight and impact strength.
Stationery & Toys
Employed in making durable toys, folders, files, and toolkits due to its safety profile and moldability.
Basic Identification Attributes
Chemical Name (IUPAC): Poly(propene)
Common/Trade Name: RAP 55D
CAS Number: 9003-07-0
HS Code: 3902.30.00
Synonyms: Impact Copolymer Polypropylene; PP Copolymer RAP 55D
Physical & Chemical Properties
Physical State: Solid (pellets)
Color & Odor: Translucent to opaque; slight hydrocarbon odor
Melt Flow Index (230°C/2.16kg): Typically 10–15 g/10 min (varies by supplier)
Density: ~0.90–0.91 g/cm³
Impact Strength: High (due to ethylene-propylene rubber phase)
Solubility: Insoluble in water; soluble in hot aromatic hydrocarbons
Safety & Hazard Attributes
GHS Classification: Not classified as hazardous
Toxicity: Non-toxic under normal use; may emit fumes when overheated
Exposure Limits: No specific occupational exposure limits for solid form
Storage & Handling Attributes
Storage Conditions: Store in dry, cool, well-ventilated areas away from direct sunlight
Container Type: Supplied in 25kg bags, jumbo bags, or bulk silos
Shelf Life: Indefinite under proper storage
Handling Precautions: Avoid dust formation; ensure proper grounding when transferring due to static charge potential
Regulatory & Compliance Attributes
FDA compliant for food contact (check supplier certification)
Meets RoHS and REACH requirements
Manufactured under ISO and GMP conditions for industrial materials
Environmental & Health Impact
Biodegradability: Not biodegradable
Ecotoxicity: Low; inert in the environment
Bioaccumulation: Not expected to bioaccumulate
Recyclability: Fully recyclable (PP#5)
PPE Required: Gloves and eye protection when handling hot resin or during processing
Handling Guidelines: Minimize dust; avoid overheating during molding
Storage Measures: Keep containers tightly closed and stored in a dry, clean environment away from open flames and UV exposure
First Aid Measures
Inhalation: If exposed to fumes, move to fresh air; seek medical attention if symptoms occur
Skin Contact: Wash with soap and water; treat burns from hot material immediately
Eye Contact: Rinse with plenty of water; seek medical help if irritation persists
Ingestion: Not a likely route; seek medical attention if swallowed
Firefighting Measures
Fire Hazards: Combustible solid; may emit toxic fumes when burning
Extinguishing Media: Use water spray, foam, dry chemical, or CO₂
Special Precautions: Firefighters should wear full protective equipment and SCBA
Hazardous Combustion Products: Carbon monoxide, carbon dioxide, and hydrocarbon fumes

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