PB/PB Scratch-Resistant Series

Asahi Kasei's DELPET™ Piano Black (PB) series is a methacrylic resin that combines a high jet black color and high gloss without the need for painting. Products with excellent scratch resistance are also available.

PB Series

Having a high level of jet black quality without the need for paint
Realize glossiness

The DELPET™ Piano Black series has the same weather resistance as regular black acrylic, but is blacker than regular black. It also has a high gloss even without clear coating. We also offer products with excellent scratch resistance which will maintain a beautiful appearance for a long time.

PB/PB Scratch-Resistant series details

PB/PB Scratch-Resistant series features

Anyway, a luxurious black appearance is realized.

With high weather resistance, it maintains its appearance for a long time

Paintless design reduces environmental impact

Glossy finish with no need for clear coating

There are also grades with friction resistance.

Molding processability and mechanical strength equivalent to general acrylic

Image showing the jet black PB series

The DELPET™ Piano Black (PB) series has less external light reflection and achieves a high level of jet blackness compared to general black methacrylic resins.

Image showing the jet black PB grade

PB series Jet Black and Weather Resistance data

* The property value is a representative value and not a guaranteed value.

The DELPET™ Piano Black (PB) series combines high jet black color with weather resistance. Therefore, it is suitable for outdoor use where a jet black color needs to be maintained for a long time.

PB grade data

Scratch resistance test for PB series

Generally, scratches are more noticeable on surfaces that are jet black, but the DELPET™ Piano Black (PB) Scratch-Resistant series combines jet black color with scratch resistance.

Scratch resistance test

Applications of the PB/PB Scratch-Resistant series

Automobile exteriors (tail light rims, pillars, rear garnish, etc.)

Home appliances

Automobile interiors

Musical instruments

Physical Properties of PB series

* The property value is a representative value and not a guaranteed value.

Physical property items Test method Unit General Grade Bimodal grade
PB01 PB21 PB22 PB23
Heat resistance High fluidity Solvent resistance Good fluidity, solvent resistant
1. Flow characteristics Melt flow-rate
(230°C､37.3N)		 1133 g/10min 2 1.8 0.6 1.0
Spiral length/wall thickness: 2mm, resin temperature: 250°C, mold temperature: 60°C, resin pressure: 75MPa Asahi Kasei PMMA method cm 27 33 27 30
2. Mechanical Properties Tensile modulus 527-1/1A/1 MPa 3300 3300 3300 3300
Tensile breaking stress 527-1/1A/5 MPa 77 77 77 77
Tensile failure strain 527-1/1A/5 % 6 5 7 6
Bending elastic modulus 178 MPa 3300 3300 3300 3300
Bending strength 178 MPa 130 130 130 130
Charpy impact strength without notch 179/1eU kJ/m2 22 22 24 24
Charpy impact strength notched 179/1eA kJ/m2 1.4 1.3 1.4 1.4
3. Thermal Properties Deflection temperature under load（1.8MPa） 75-1,2 °C 100 100 98 98
Vicat softening temperature 306B50 °C 108 108 106 106
4. Other Properties Lightness L* SCE-based spectrophotometry (light source: D65/10 degree field) - <1.0 <1.0 <1.0 <1.0
Chromaticity a*/b* - -0.3/-1.3 -0.3/-1.3 -0.3/-1.3 -0.3/-1.3
Water absorption (23°C､24hr) 62method1 % 0.3 0.3 0.3 0.3
Density 1183 g/cm3 1.19 1.19 1.19 1.19
Rockwell hardness M scale 2039-2 - 100 100 95 98
Mold shrinkage Asahi Kasei PMMA method % 0.2~0.6 0.2~0.6 0.2~0.6 0.2~0.6

PB Scratch-Resistant series physical properties

* The property value is a representative value and not a guaranteed value.

Physical property items Test method Unit General Grade Bimodal
PB014 PB013 PB033 PB233
Resistant to fabric scratch Heat resistance Good fluidity and heat resistance Good fluidity and heat resistance
1. Flow characteristics Melt flow-rate
(230°C､37.3N)		 1133 g/10min 3.1 2.0 6.0 1.0
Spiral length/wall thickness: 2mm, resin temperature: 250°C, mold temperature: 60°C, resin pressure: 75MPa Asahi Kasei PMMA method cm 31 27 34 30
2. Mechanical Properties Tensile modulus 527-1/1A/1 MPa ｰ 3300 3300 3300
Tensile breaking stress 527-1/1A/5 MPa 75 77 75 77
Tensile failure strain 527-1/1A/5 % 5 6 5 6
Bending elastic modulus 178 MPa 3020 3300 3300 3300
Bending strength 178 MPa 116 130 120 130
Charpy impact strength without notch 179/1eU kJ/m2 20 21 19 22
Charpy impact strength notched 179/1eA kJ/m2 1.3 1.2 1.2 1.2
3. Thermal Properties Deflection temperature under load（1.8MPa） 75-1,2 °C 94 100 100 98
Vicat softening temperature 306B50 °C 104 109 109 107
4. Other Properties Lightness L* SCE-based spectrophotometry (light source: D65/10 degree field) - 0.4 <1.0 <1.0 <1.0
Chromaticity a*/b* - 0.1/-0.3 0.1/-0.4 0.1/-0.4 0.1/-0.4
Water absorption (23°C､24hr) 62 method1 % ｰ 0.3 0.3 0.3
Density 1183 g/cm3 1.19 1.19 1.19 1.19
Rockwell hardness M scale 2039-2 - ｰ 100 98 98
Mold shrinkage Asahi Kasei PMMA method % 0.2~0.6 0.2~0.6 0.2~0.6 0.2~0.6

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