HDPE
High-density polyethylene
Strong, lightweight, and chemically resistant material for durable hollow products.
Density≈ 0.95 g/cm³
Temperature−50°C to 80°C
Tensile Strength20 to 35 MPa
Ideal ForBottles, containers, industrial packaging
Blow Molding
Hollow parts.Made efficiently.
Lightweight hollow plastic components designed for consistent production, functional performance, and efficient material use.
100%Hollow Form
30%Lighter Weight
HighVolume Capable
ISOCertified
Independently Certified
Engineering Workflow
From part design to hollow parts
We develop hollow plastic components by reviewing the design, developing the mold, validating material distribution, and refining the process for production.
01
DFM Review
Reviewing your designWe review wall thickness, shape, openings, draft, and material distribution before tooling. Required changes help achieve proper forming and consistent finished parts.
Wall ThicknessPart ShapeOpeningsMaterial Distribution
Deliverables
- DFM Report
- Design Recommendations
- Process Recommendations
02
Production Tooling
Building the moldOnce the design is approved, we develop the mold around the required shape, material, and production volume. The mold is then prepared for trial production.
Mold LayoutCooling ChannelsCavity FinishPart Release
Deliverables
- Production Mold
- Tool Validation
- Trial Ready
03
T1 Sampling
First blown samplesThe first parts are produced to check dimensions, wall distribution, shape, appearance, and overall performance before production approval.
Wall DistributionDimensional CheckVisual CheckFitment Testing
Deliverables
- T1 Sample Parts
- Inspection Report
- Production Approval
04
Quality Control
Checking productionProduction parts are checked throughout the run for wall thickness, dimensions, appearance, and consistency to maintain reliable output.
Wall ThicknessDimensional InspectionVisual StandardsLeak Testing
Deliverables
- Quality Report
- Batch Verification
- Approved Parts
05
Full Production
Manufacturing at scaleAfter approval, full production begins using the validated mold and process. Finished parts are inspected, packed, and prepared for shipment.
Production RunFinal InspectionPackagingLogistics
Deliverables
- Finished Components
- Quality Documentation
- Shipment Ready
Material Selection
Blow molding thermoplastics
Choose materials based on strength, flexibility, chemical resistance, wall distribution, and application. Each polymer offers different processing and performance characteristics.
PET
Polyethylene terephthalate
Clear and strong material with excellent barrier properties for consumer packaging.
Density≈ 1.38 g/cm³
TemperatureUp to ≈ 70°C
Tensile Strength50 to 75 MPa
Ideal ForBeverage bottles, food packaging, containers
PP
Polypropylene
Lightweight and chemically resistant polymer with good fatigue performance.
Density≈ 0.90 g/cm³
Temperature−20°C to 100°C
Tensile Strength25 to 40 MPa
Ideal ForContainers, household products, automotive parts
LDPE
Low-density polyethylene
Flexible material with good impact resistance and chemical stability.
Density≈ 0.92 g/cm³
Temperature−50°C to 80°C
Tensile Strength8 to 20 MPa
Ideal ForFlexible containers, bottles, packaging
PVC
Polyvinyl chloride
Versatile material available in flexible and rigid grades with good chemical resistance.
Density≈ 1.3 to 1.4 g/cm³
Temperature−20°C to 60°C
Tensile Strength40 to 55 MPa
Ideal ForBottles, containers, chemical packaging
EVOH
Ethylene vinyl alcohol
High-barrier polymer used where protection against oxygen and other gases is required.
Density≈ 1.1 to 1.2 g/cm³
Barrier PerformanceVery High
TemperatureGrade Dependent
Ideal ForFood packaging, pharmaceutical packaging, barrier containers
Production Capabilities
What blow molding delivers
Blow molding creates lightweight hollow components with controlled wall thickness, efficient material use, and repeatable production for a range of product sizes.
01
Multiple
Plastic Materials
Choose from different thermoplastics based on strength, flexibility, chemical resistance, weight, and product requirements.
02
Custom
Part Volumes
Supports different hollow component sizes and capacities based on the product dimensions and tooling requirements.
03
Lightweight
Part Construction
Creates hollow components that achieve the required volume and structural performance while keeping material use and weight efficient.
04
Custom
Colors & Finishes
Supports custom colors and surface treatments to meet functional, branding, and appearance requirements.
05
Medium to High
Production Volumes
Well suited for repeat production where efficient cycles and dedicated tooling support consistent output at scale.
06
Custom
Hollow Geometries
Supports product-specific hollow shapes, openings, handles, necks, and other formed features.
Typical values shown are general industry guidelines. Actual results may vary depending on material selection, part geometry, tooling design, and processing conditions.
Surface Finishes
Every finish has a purpose.
Blow molding supports a range of surface finishes for hollow components, from smooth cosmetic surfaces to functional textures. The right mold finish helps control appearance, tactile feel, and surface character while maintaining the intended form and quality of the finished product.
Polished
High Gloss
FinishSmooth Reflective
ProcessMold Polishing
Ideal ForPackaging, consumer, automotive
Satin
Semi Gloss
FinishSoft Reflection
ProcessFine Blasting
Ideal ForContainers, appliances, equipment
Matte
Low Gloss
FinishLow Reflection
ProcessSurface Blasting
Ideal ForIndustrial, outdoor, consumer
Textured
Controlled Texture
FinishDefined Texture
ProcessMold Texturing
Ideal ForAutomotive, tools, outdoor
Global Applications
Where blow molding performs.
From packaging and consumer products to automotive, industrial, material handling, and fluid management applications, blow molding supports the production of lightweight hollow components across a broad range of industries.
Containers & Packaging
Bottles, containers, and hollow packaging components.
Automotive Components
Reservoirs, ducts, tanks, and other hollow vehicle components.
Industrial Tanks
Tanks, vessels, and containers designed for fluid storage and handling.
Material Handling
Hollow containers, bins, drums, and industrial storage products.
Consumer Products
Hollow housings, containers, bottles, and recreational products.
Fluid Management
Tanks, reservoirs, ducts, and other hollow fluid-handling components.
FAQ
Questions we hear before every project
What types of products can you make with blow molding?
We can manufacture custom hollow products such as containers, bottles, tanks, reservoirs, ducts, and other lightweight hollow components.
Can you manufacture a custom hollow shape?
Yes. Custom shapes, sizes, openings, volumes, and external features can be developed around your product requirements.
Can you help me choose the right material?
Yes. We can recommend a suitable material based on strength, weight, impact resistance, chemical exposure, temperature, appearance, and application.
Can I get samples before placing a production order?
Yes. Samples can be produced for evaluation and approval before moving into larger production.
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Why Clients Trust CADLETE
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Ready to build?
Let’s move your hollow parts into production
From part design and mold development to material selection, sample validation, blow molding, quality inspection, and full production, we provide complete blow molding support for projects of every scale.