Publié le 2021-04-15
Synthene offers a simple and practical range to meet all your needs for the realization of rigid parts in vacuum casting. You can find all you need to know in this article: Synthene - Vacuum casting
Based on the technology already proven for the PR700, the PR7 Series offers the great advantage of a single isocyanate for 4 systems with different properties.
With a single isocyanate: Synthene PR7-XX, and a shelf life of 18 months, the PR7 series allows for optimal stock management with adapted packaging: 1kg and 5kg for the different products.
Synthene PR700: vacuum casting resin par excellence. Simulating an ABS, black, with a flexural modulus of 2300Mpa, this resin also offers a very good temperature resistance: 130°C.
Synthene PR777 : Semi-rigid resin similar to HDPE or PP. (1000 Mpa flexural modulus) With an intermediate stiffness, it has a very good impact resistance and a mixing ratio PR777Polyol + PR7XX Iso of 1/1.
Synthene PR740 : Semi-flexible, alternative to the old PR891. Very easy to use, it has a good colorability. With a simple mixing ratio (100/120) it allows to realize parts with a great flexibility, up to the hinge effect.
Synthene PR750 : THE reference high temperature resin (HDT of 150°C) that can be colored. It flows very easily (viscosity of about 1000mPas.s) while remaining slightly flexible (2200Mpa modulus of lesion)
|Products||POLYOL||PR7XX ISO||Viscosity Mpa.s||Module||Contretype||HDT (°C)|
The low aggressiveness of these resins makes them ideal for vacuum casting, allowing the production of 30 to 40 parts in a polyaddition silicone mold (RTV 4234-T4).
The very short demolding time allows to increase the production rate of the parts: demolding between 45 and 60min at 70°C.
Health and safety: All Synthene PR7 series products (Synthene PR740, Synthene PR777, Synthene PR700, Synthene PR752) are mercury free, non CMR, and meet the requirements of European Directives: 2011/65/EU (RoHS), 2002/96/EC, 2000/53/EC, 2000/11/EC.
These different products are compatible with the SYNFILL-G Charge. Questions about the Synthene SYNFILL-G ? Find our dedicated article : Synfill-G from Synthene, the new glass fibre filler for reinforcement
Synthene PR-700 : Black resin intended for the production of prototypes or small series. Any need for the production of parts requiring high thermal resistance and/or high mechanical properties.
|Flexion modulus (MPa)||1700||2700||3000||3400|
|Maximum flexion stress (MPa)||70||92||95||105|
|Deflection temperature under load (°C)||130/B||118/A||136/A||142/A