PMMA (Polymethyl Methacrylate/Acrylic)

PMMA, commonly known as acrylic, offers exceptional optical clarity, UV resistance, and weather stability. It's the preferred choice for applications requiring transparency and outdoor durability.

PMMA (Polymethyl Methacrylate/Acrylic) Material Properties

Mechanical Properties

High surface hardness
Good tensile strength
Excellent dimensional stability
Scratch resistant
Rigid material
Brittle under impact

PMMA (Polymethyl Methacrylate/Acrylic) Thermal Properties

Heat deflection temperature: 75-105°C
Continuous service temperature: up to 85°C
Good UV stability
Low thermal conductivity

PMMA (Polymethyl Methacrylate/Acrylic) Processing Properties

Good processability
Excellent surface finish
Low moisture absorption
Good flow properties
Easy to polish
Can be laser cut

PMMA (Polymethyl Methacrylate/Acrylic) Parts Manufacturing Processes

Injection Molding

Excellent

Advantages

High clarity
Good surface finish
UV resistant
Dimensional stability

Key Parameters

melt temperature: 200-250°C

mold temperature: 50-80°C

injection pressure: 70-120 MPa

CNC Machining

Excellent

Advantages

Excellent surface finish
High accuracy
Clear parts
Good edge quality

Key Parameters

cutting speed: 150-250 m/min

feed rate: 0.05-0.15 mm/rev

tool type: Single-flute tools

3D Printing

Poor

Advantages

Limited applications
Prototyping possible
Design freedom
Quick turnaround

Key Parameters

nozzle temperature: 235-250°C

bed temperature: 90-110°C

layer height: 0.1-0.2mm

PMMA (Polymethyl Methacrylate/Acrylic) Technical Specifications

density

1.17-1.20 g/cm³

water absorption

0.3-0.4%

tensile strength

65-75 MPa

flexural modulus

3000-3300 MPa

impact strength

10-20 kJ/m²

light transmission

92-93%

refractive index

1.49

heat deflection

75-105°C

Processing Guidelines

molding temperature

200-250°C

mold temperature

50-80°C

drying conditions

80°C for 2-4 hours

injection pressure

70-120 MPa

recommended thickness

1.0-12.0 mm

PMMA (Polymethyl Methacrylate/Acrylic) Parts Industry Applications

Lighting

Light guides
LED covers
Diffusers
Luminaire components

Display

Point of sale displays
Sign panels
Exhibition stands
Display cases

Architectural

Skylights
Glazing panels
Privacy screens
Decorative elements

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