Polycasa CAST PMMA

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Polycasa CAST PMMA
Categories:	Polymer; Thermoplastic; Acrylic (PMMA); Acrylic, Cast
Material Notes:	QUINN CAST has an optical transparency of 93% light transmission for transparent sheets. It is significantly lighter and much more impact resistant than glass of equivalent thickness. QUINN CAST is resistant to UV rays, shows good thermal stability and low water absorption. QUINN CAST sheets are easy to handle and most fabricating and molding techniques are applicable to it, allowing attractive designs. Construction Skylights Barrel Vaults Partitions Doors Industry Signs Displays Furniture Sanitary fittings Gift Articles Shop fittings Solariums Boat Windows Projection Screens Quinn Manufacturing Group rebranded its Plastics Division as Polycasa in 2013.
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Physical Properties	Original Value	Comments

Density	1.19 g/cc	ISO 1183

Mechanical Properties	Original Value	Comments
Hardness, Rockwell M	105	ISO 2039-2
Tensile Strength at Break	75.0 MPa	ISO 527
Elongation at Break	6.0 %	ISO 527
Tensile Modulus	3.30 GPa	ISO 527
Flexural Strength	125 MPa	ISO 178
Flexural Modulus	3.00 GPa	ISO 178
Charpy Impact Unnotched	1.50 J/cm²	ISO 179
Charpy Impact, Notched	0.200 J/cm²	ISO 179

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+15 ohm-cm	DIN 53482
Surface Resistance	1.00e+14 ohm	DIN 53482
Dielectric Constant	3.6 @Frequency 50 Hz
Dielectric Strength	30.0 kV/mm	DIN 53481
Dissipation Factor	0.060 @Frequency 50 Hz	DIN 53483

Thermal Properties	Original Value	Comments
CTE, linear	70.0 µm/m-°C @Temperature 20.0 °C	ISO 11359-2
Specific Heat Capacity	2.16 J/g-°C	ISO 3146-C-60ºC
Thermal Conductivity	0.190 W/m-K	DIN 52612
Maximum Service Temperature, Air	80.0 °C	Continuous Use
	90.0 °C	Short Term Use
Deflection Temperature at 1.8 MPa (264 psi)	105 °C	no pressure specified; ISO 75
Vicat Softening Point	115 °C	ISO 306
Decomposition Temperature	>= 280 °C

Optical Properties	Original Value	Comments
Refractive Index	1.492	ISO 489
Transmission, Visible	93 %	ISO 1183

Processing Properties	Original Value	Comments
Processing Temperature	160 - 190 °C	Sheet Forming

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