TECNOTHANE® MPT 109

Tecnothane® MPT109 has been developed to be an all-purpose system for high-demanding applications operating at low temperature, underwater, or under hydrolytic environments. It excels in elasticity and dynamic properties, with a good balance of mechanical properties. It fits well with many different tough applications like wheels, technical parts, skating, and offshore.

Do not allow excessive cooling of molded parts between demolding and post-curing.

Hardness (ShA)	Temperature (°C)	Time (hours)
From 65 to 74	70	16
Higher than 75	90	16

For hardness ≤ 78 ShA it is recommended to wait 24 h at room temperature, before post-curing cycle.
For hardness above 93 ShA, two annealing steps are recommended to quickly reach the best performances; let the material cool down to room temperature in between the 2 post curing processes.

Hardness (ShA)	MPT109	RH400	R140H	Catalyst (%)	Molds T (°C)	Pot life (sec)	Demolding (min)
65	100.00	65.50	2.00	*	70–90	300–360	60–120
70	100.00	52.50	3.50	*	75–95	300–360	60–100
75	100.00	43.50	4.50	*	75–95	240–300	40–60
80	100.00	34.50	5.50	*	90–105	240–300	40–60
85	100.00	25.50	6.50	*	90–105	220–270	30–50
90	100.00	12.00	8.00	*	90–105	180–240	25–45
92	100.00	8.00	8.50	*	90–105	160–180	25–45
94	100.00	0.00	9.45	*	90–105	140–180	20–45

The amount of main components is given on parts by weight.
*Pot life and demolding time are referred to the system without catalyst, Tecnovat D5 can be used to adjust pot life and demolding time.

The purpose of the following table is only to provide indicative data about material properties. Typical properties are referred to samples prepared according to internal conditions and measured thirty days after post curing.

ISO 7619-1
Hardness (ShA)	65±2	70±2	75±2	80±2	85±2	90±2	92±2	94±2
Hardness (ShD)	/	/	/	33±2	37±2	40±2	43±2	49±2
ISO 2781
Density (g/cm³)	1.12
ISO 37 (Tensile)
Modulus 50% (N/mm²)	2	2	2	3	5	6	7	7
Modulus 100% (N/mm²)	3	3	4	5	7	7	9	11
Modulus 300% (N/mm²)	4	6	9	10	12	14	15	16
Tensile strength (N/mm²)	24	26	32	33	34	37	40	42
Elongation (%)	450	450	470	460	460	450	430	420
ISO 34-1 (Tear strength)
DIE B/a (kN/m), 90° without nick	30	34	37	42	58	68	70	80
DIE B/b (kN/m), 90° with nick	14	14	20	25	31	29	35	37
DIE C (kN/m), crescent with nick	27	30	40	45	60	65	70	72
ISO 4662
Rebound resilience (%)	80	78	75	70	63	69	58	/
ISO 815
Compression set at 70ºC / 23h (%)	10	10	12	14	16	18	18	20
ISO 4649
Abrasion resistance (mg)	60	60	55	52	56	56	55	57

Materials are available in following packaging: 25, 50 or 200 kg

• In order to allow complete melting, pre-heat materials at following conditions (melting times are referred to 200 kg drums,stored at 20°C)

Pre-heating temperature (°C)	75
Pre-heating time (hours)	24

• After pre-heating, make sure all materials are completely melted.
• Well mix melted material by drilling or rolling the drum
• Load materials to the machine immediately after mixing.
• Materials must be stored under nitrogen blanket after use.