TECNOTHANE® MPT 115 G

TECNOTHANE® MPT 115 G is an MDI-based polyurethane with a polyether backbone.

Polymer Name: Polyurethane (MDI-based)

End Uses: High Stress Technical Part, Industrial Parts, Marine Applications, Offshore Applications, Skateboards, Wheels

Technical Data Sheet
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Identification & Functionality

Blend
No
Chemical Family
Polymer Name
Single Ingredient
Yes
Technologies
Product Families

Features & Benefits

Applications & Uses

Plastics & Elastomers End Uses
Markets
Applications
Application Information

Tecnothane® MPT115G 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. “G” series is designed for improved abrasion resistance.

Technical Details & Test Data

Typical Properties

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 95±2 97±2 >98
Hardness (ShD) \ \ \ 30±2 33±2 41±2 50±2 55±2 60±2
ISO 2781  
Density (g/cm³) 1.12
ISO 37 (Tensile)  
Modulus 50% (N/mm²) 1 2 2 3 4 4 6 8 17
Modulus 100% (N/mm²) 2 3 4 5 5 7 8 12 18
Modulus 300% (N/mm²) 4 7 9 9 10 13 16 20 28
Tensile strength (N/mm²) 21 24 30 33 36 40 45 48 51
Elongation (%) 550 540 540 530 520 520 490 470 460
ISO 34-1 (Tear strength)  
DIE B/a (kN/m), 90° without nick 34 49 64 75 82 83 94 100 130
DIE B/b (kN/m), 90° with nick 9 15 21 29 34 36 44 50 65
DIE C (kN/m), crescent with nick 18 24 41 51 61 65 78 115 149
ISO 4662  
Rebound resilience (%) 77 75 75 72 71 70 63 \ \
ISO 815  
Compression set at 70ºC / 23h (%) 15 17 18 20 20 24 25 \ \
ISO 4649  
Abrasion resistance (mg) 20 15 12 13 15 15 28 28 30
Casting Information
Hardness (ShA) MPT115G RH724 RT145 Catalyst (%)* Molds T (°C) Pot life (sec) Demolding (min)
65 100 147.25 6.75 0.2-0.6 75-95 200-240 30
70 100 130.75 7.80 0.2-0.6 75-95 200-230 30
75 100 114.50 8.85 0.2-0.6 80-100 190-220 30
80 100 96.80 9.95 0.2-0.6 80-100 190-220 30
85 100 76.30 11.25 0.2-0.5 90-110 180-210 30
90 100 56.50 12.50 0.2-0.5 90-110 160-190 30
95 100 38.00 13.65 0.1-0.4 90-110 120-140 30
55D 100 18.85 14.75 0.1-0.3 95-115 80-110 25
60D 100 0 16.05 0.1-0.3 95-115 70-100 25

The amount of main components is given on parts by weight.
*Pot life and demolding time are referred to the system with catalyst quantity as above, Tecnokat D5 can be used to adjust pot life and demolding time.

Post Curing Information

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
From 75 to 92 90 16
Higher than 93 110 16

For hardness above 93 ShA the best performance is obtained through 2 annealing steps. In this sense it is recommended to let the material cool down to room temperature in between the 2 post curing processes.

Packaging & Availability

Regional Availability
  • Global
Packaging Information
Materials are available in following packaging: 25, 50 or 200 kg

Storage & Handling

Handling Information
  • 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) 50
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.

Other

Physical Properties
ValueUnitsTest Method / Conditions
Viscosity1450.0-850.0 mPa.smPa.s