Polyester-based thermoplastic elastomer
Tefabloc™ TPC

ABOUT

Tefabloc™ TPC is a combination of hard and soft segments.
This is a polyester-based thermoplastic elastomer composed of polyether copolymers.
It offers excellent abrasion resistance, heat resistance, and oil resistance. Furthermore, it is compatible with hard resins such as ABS/PC/PMMA, allowing for two-color molding or heat fusion via insert molding.
It is widely used in pen grips made from PCs and other materials, waterproof gaskets for electronic components, and automotive parts that require high mechanical strength.
As of April 2017, the product name "Primaloy" has been changed to "Tefabloc™".
TPC refers to a mixture containing polyester elastomer components.
*The product name used on the packaging, delivery specifications, SDS, etc., for this product will be "Tefabloc™".

FEAUTURE

Features of Tefabloc™ TPC

■We offer a wide range of hardness levels in our product lineup.
- - Duro hardness A45 to Duro hardness D65
- - It has a superior tactile feel.
■Heat fusion with hard resins is possible.
- A Series
  Strong adhesion is achieved through two-color molding or insert molding with materials such as ABS, PC, and PMMA.
■Excellent heat resistance, abrasion resistance, oil resistance, and mechanical strength.
- B Series
■Easy to mold and process.
- Molding is possible using general-purpose extrusion and injection molding machines.
- Sprues and runners are recyclable.

Heat-sealable rigid resin

classification	Specific example	Recommended fusion temperature (°C)	remarks
Amorphous resin	Polycarbonate resin (PC)	200～240	Flame-retardant grades tend to have reduced strength.
	Styrene-based resins (ABS, AES, AS, GPPS, HIPS)	200～240
	Acrylic resin (PMMA)	200～240
	Polyphenylene ether resin (PPE, PPE/PS)	230～250	PPE/PA type is not suitable.
Crystalline resin	Aromatic polyester resins (PBT, PET, PET-G)	230～250	Preheating recommended (GF-enhanced items are essential). The moisture content of the adherend is a factor.
	Cellulose resin (cellulose propionate, cellulose acetate)	200～240	The moisture content of the adherend is a factor.
	Biodegradable plastics (PLA, PBSL)	200～240	The moisture content of the adherend is a factor.
	Polyamide resins (PA6, PA66, PA12, PA-MXD)	230～250	Preheating recommended (GF-enhanced items are essential). The moisture content of the adherend is a factor.
Polymer alloy	PC/ABS, PC/PBT	200～250
thermosetting resin	Phenolic resin, polyimide resin	200～240
thermosetting resin	Unsaturated polyester resin	200～240

Tefabloc™ TPC Fusible Resin Grade List

This document lists polyester elastomers (A series) that can be bonded to rigid resins such as PC, ABS, PMMA, PA, and POM.

We have confirmed that the grades marked with a checkmark are suitable for fusion bonding.

resin	Cylinder temperature /℃	A1400N	A1400C	A1500N	A1600N	A1602N	A1606C	A1610N	A1700N	A1704N	A1706C	A1710N	A1800N	A1900N	EPO-18 Development Product	EPO-20 Development product
		Grade Name
PC	220	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔
PC	240	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔
ABS	220	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔
ABS	240	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔
PMMA	220	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔
PMMA	240	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔
PA	220
PA	240							✔				✔
PA-GF	220
PA-GF	240							✔				✔
Copolyester /Tritan™	240	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔	✔
PBT	220													✔	✔	✔
	240													✔	✔	✔
	280													✔
PBT-GF	220														✔	✔
PBT-GF	240													✔	✔	✔
POM	220														✔	✔
POM	240														✔	✔

Product lineup and physical properties table

A Series (Low Hardness, Good Thermal Adhesion)
B Series (Good heat resistance, good oil resistance)
PTB Series

Tefabloc™ TPC A Series

Tefabloc™ TPC A Series
A standard grade of flexible injection molding material that can be heat-fused with rigid resins.

item	Test method	unit	A1400N	A1500N	A1600N	A1700N	A1800N	A1900N
Density	ISO 1183 reference	g/ cm³	0.95	0.98	1.00	1.02	1.07	1.12
MFR (230℃, 21.2N)	ISO 1133 reference	g/10min	4	6	5	8	29	25
Duro hardness A (after 15 seconds)	ISO 7619-1 Reference	-	45	61	67	76	85	93
Tensile stress at break	ISO 37 Reference 1A Test specimen, Test speed: 500 mm/min	MPa	5	6	8	8	12	13
Elongation during cutting	ISO 37 Reference 1A Test specimen, Test speed: 500 mm/min	%	750	810	930	810	980	1000
Fusion strength PC 220℃	Base material: PC, ABS Cylinder temperature: 220°C, 240°C Mold temperature: 60℃ Injection molding material thickness: 2mm, base material thickness: 2mm Fusion strength (width 25 mm, 200 mm/min., 90° peel) Stress at peel Peak value (n3 average)	N/25mm	93	141	185	275	412	507
Fusion strength PC 240℃		N/25mm	68	142	179	263	407	514
Fusion strength ABS 220℃		N/25mm	69	125	143	192	234	175
Fusion strength ABS 240℃		N/25mm	63	124	142	189	231	176

*The above figures are representative values and not guaranteed values.

*The product name on the packaging, delivery slip, SDS, etc., of this product will be "Tefabloc™".

Issued:Sep.2025

A functional grade characterized by good release properties and high transparency.

Test items	Test method	unit	A1602N	A1704N	A1400C	A1606C	A1706C
Features			Good release type	Good release type	high transparency	high transparency	high transparency
Density	ISO 1183 reference	g/ cm³	1.00	1.08	0.94	1.00	1.02
MFR (230 ℃,21.2N)	ISO 1133 reference	g/10min	3	11	1	4	13
Duro hardnessA (after 15 seconds)	ISO 7619-1 reference	-	69	81	47	68	78
Tensile stress at break	ISO 37 reference 1A test specimen, Test speed: 50 mm/min	MPa	9	8	4	7	9
Elongation during cutting	ISO 37 reference 1A test specimen, Test speed: 50 mm/min	%	840	480	630	880	880
Fusion strengthPC 220℃	Base material:PC,ABS Cylinder temperature: 220℃,240℃ Mold temperature: 60℃ Injection molding material thickness: 2mm, base material: 2mm Fusion strength (Width 25mm, 200mm/min, 90-degree peeling) Stress during delamination Peak value (average of n=3)	N/25mm	166	141	38	185	285
Fusion strengthPC 240℃			197	143	40	205	279
Fusion strengthABS 220℃			193	146	36	153	250
Fusion strengthABS 240℃			152	144	45	161	244
HAZE (Test specimen2mmthick)	ISO 14782 reference	%	－	－	76	35	45

*The above figures are representative values and not guaranteed values.

*The product name on the packaging, delivery slip, SDS, etc., of this product will be "Tefabloc™".

Issued:Sep.2025

PA/PBT Functional Grade

Test items	Test method	unit	A1610	A1611N (Product under development)
Features			PA fusion	PBT fusion
Density	ISO 1183 reference	g/ cm³	1.00	1.00
MFR (230℃, 21.2N)	ISO 1133 reference	g/10min	7	16
Duro hardness A (after 15 seconds)	ISO 7619-1 Reference	-	67	68
Tensile stress at break	ISO 37 Reference 1A Test specimen, Test speed: 500 mm/min	MPa	9	4
Elongation during cutting	ISO 37 Reference 1A Test specimen, Test speed: 500 mm/min	%	850	580
Fusion strength PBT 240℃	Base material: PBT Cylinder temperature: 220°C, 240°C Mold temperature: 60℃ Injection molding material thickness: 2mm, base material thickness: 2mm	N/25mm	－	80
Fusion strength PBT 220℃		N/25mm	－	75
Fusion strength PA 240℃	Base material: PC, ABS Cylinder temperature: 220°C, 240°C Mold temperature: 60℃ Injection molding material thickness: 2mm, base material thickness: 2mm Fusion strength (width 25 mm, 200 mm/min., 90° peel) Stress at peel Peak value (n3 average)	N/25mm	60	－
Fusion strength PC 220℃		N/25mm	180	－
Fusion strength PC 240℃		N/25mm	170	－
Fusion strength ABS 220℃		N/25mm	100	－
Fusion strength ABS 240℃		N/25mm	90	－

*The above figures are representative values and not guaranteed values.

*The product name on the packaging, delivery slip, SDS, etc., of this product will be "Tefabloc™".

Issued:Sep.2025

Tefabloc™ A Series Physical Properties List

B Series (Good heat resistance, good oil resistance)

Tefabloc™ TPC B Series
Excellent heat resistance, wear resistance, oil resistance, and mechanical strength.Injection molding grade

item		Measurement method Test	unit Unit	B1600N	B1700N	B1900NR	B1910N	B1920N	B1921N	B1932N
MFR Melt Flow Rate		ISO1133 reference 230℃, 21,2N	g/10min.	2	4	23	26	23	20	45
density Density		ISO1183 Reference Method A	g/ cm³	0.97	0.98	1.12	1.14	1.16	1.19	1.23
Duro A hardness (after 15 seconds) Durometer Hardness		ISO7619 Reference w/ 15 sec.	－	63	69	-	-	-	-	-
Duro D hardness (after 15 seconds) Durometer Hardness		ISO868 reference w/ 15 sec.	－	-	-	39	45	49	53	60
Tensile test Tensile Test	Tensile stress at break Tensile Fitness	ISO37 reference Type 1A 500 mm/min.	MPa	6	9	-	-	-	-	-
Tensile test Tensile Test	Elongation during cutting Elongation	ISO37 reference Type 1A 500 mm/min.	%	590	730	-	-	-	-	-
Bending test	Flexural modulus	ISO178 reference	MPa	-	-	96	145	183	170	355
Wear resistance	Abrasion resistance test	MCC Test Method Kintoba No. 3, 500g * 5000 times	%	-	-	0.064	0.051	0.027	0.010	0

*The above figures are representative values and not guaranteed values.

*The values in the table above are subject to change without notice.

*Please evaluate and judge the quality suitability, safety, and legality of the product for your intended use.

*The product name used on the packaging, delivery specifications, SDS, etc., for this product will be "Tefabloc™".

*TPC refers to a mixture containing polyester elastomer components.

*Reproduction of this data and information without prior written consent is prohibited.

Issued:Sep.2025

Tefabloc™ B Series Physical Properties List

PTB Series

item		Measurement method Test	unit Unit	PTB201	PTB202	PTB203	PTB204
MFR Melt Flow Rate		ISO1133 reference 230℃, 21,2N	g/10min.	14	23	21	18
density Density		ISO1183 Reference Method A	g/ cm³	1.01	1.02	1.04	1.05
Duro A hardness (after 15 seconds) Durometer Hardness		ISO7619 Reference w/ 15 sec.	－	43	48	67	73
Tensile test Tensile Test	Tensile stress at break Tensile Fitness	ISO37 reference Type 1A 500 mm/min.	MPa	3	6	8	8
Tensile test Tensile Test	Elongation during cutting Elongation	ISO37 reference Type 1A 500 mm/min.	%	280	400	550	750
Compression permanent set	ISO 815 reference	70℃, 22hrs	%	37	41	54	59
Oil swelling resistance test	MCC method	IRM903, 80℃ 24hrs	D Vol.%	0	8	19	28
Static friction coefficient	Friction and wear testing machine	Load against SUS: 50g 100 mm/min.	-	1.04	1.05	1	1.52
coefficient of kinetic friction	Friction and wear testing machine	Load against SUS: 50g 100 mm/min.	-	1	1	1	1
Rebound elasticity	JIS K6253 reference	Lübke system	%	78	76	76	81

*The above figures are representative values and not guaranteed values.

*The values in the table above are subject to change without notice.

*Please evaluate and judge the quality suitability, safety, and legality of the product for your intended use.

*The product name used on the packaging, delivery specifications, SDS, etc., for this product will be "Tefabloc™".

*TPC refers to a mixture containing polyester elastomer components.

*Reproduction of this data and information without prior written consent is prohibited.

Issued:Sep.2025

Tefabloc™ PBT Series Physical Properties List

Recommended molding conditions

What are polyester elastomers?

Examples of robotic hand applications

Fusion with Tritan

For the export of chemical products, we will check the regulations of each country and then respond regarding whether or not we can provide them.
Please be sure to include information such as the exporting country.
Please note that for some products, we may not be able to offer or provide a different grade.

CASE

Application example

CONTACT

Before you start worrying about selecting and developing resin materials
Please contact Mitsubishi Chemical.

Polymer Compounds Business Group Products
Useful resources are available here.

Documents

Please feel free to ask any questions.
Please contact us.

Inquiry

RELATION

Related Products

Olefin-based thermoplastic elastomer

Tefabloc™ TPO

Styrene-based thermoplastic elastomer

Tefabloc™ TPS

The above information is based on the latest available information as of the date of creation and may be revised in the future based on new information.

Furthermore, this information is provided as general technical information and reference material, and we do not guarantee the accuracy or completeness of the content.

Product performance and characteristics may vary depending on usage conditions, processing conditions, etc. The final decision regarding applicability and design is the customer's responsibility.

We will check the regulations of each country regarding the export of chemical products and then respond whether or not we can provide them. Please be sure to include information such as the exporting country.

Depending on the product, we may suggest a different grade or may not be able to provide the product at all.

Mitsubishi Chemical Corporation
Polymer Compounds Business Group

Inquiry

Polyester-based thermoplastic elastomerTefabloc™ TPC

Features of Tefabloc™ TPC

Heat-sealable rigid resin

Tefabloc™ TPC Fusible Resin Grade List

Product lineup and physical properties table

Tefabloc™ TPC A Series

B Series (Good heat resistance, good oil resistance)

PTB Series

Recommended molding conditions

Related articles

What are polyester elastomers?

Examples of robotic hand applications

Fusion with Tritan

Application example

Various types of grips

Pen grip

rubber seal

Before you start worrying about selecting and developing resin materialsPlease contact Mitsubishi Chemical.

Related Products

Tefabloc™ TPO

Tefabloc™ TPS

Polyester-based thermoplastic elastomer
Tefabloc™ TPC

Before you start worrying about selecting and developing resin materials
Please contact Mitsubishi Chemical.