Telene casting formulations
These are the specifics of Telene® 1810 and 1811 with reference to "Telene® Process Book, 2010".
1. Drum types. Conditions of storage
Telene® 1810 and 1811 drums should be kept between 10ºC and 30ºC in a dry place.Packaging: 2 x 30 kg A / B in metal drums with 2'' and 3/4'' bungs.
Drums dimensions: 280 * 532 mm (UN Y-1,2)
2. Shelf life
Maximum shelf life: 3 months in unopened sealed drums. Once opened, Telene® 1810/1811 drums should be kept under nitrogen blanket with slight overpressure (maximum 0.2 bar) in order to prevent nitrogen dissolution. Avoid permanent nitrogen circulation.3. General processing rules
Telene® 1810 and 1811 are two component-systems (Telene® 1810/1811 A and B) suitable for machine casting (Telene® 1810) and open air casting at room temperature (Telene® 1811).Both components of Telene® 1810/1811 need to be mixed at equal volume (1:1 ratio). Significant changes in ratio will slow down the system's reactivity and influence the final polymer’s properties.
When both A and B components are mixed, the system becomes active.
At a 30ºC reference temperature:
- Time to pour the liquid into a mold is around 300 seconds
- The curing time is around 600 seconds after mixing.
The exothermic peak is typically higher than 180ºC.
4. Injection/casting unit type
Telene® 1810 can be processed by two component-metering machines (commonly used for PU casting).Required machine configuration:
1. Material storage
- A and B stainless steel tanks
- Thermal control
- Storage under nitrogen blanket (overpressure 0.5-1 bar)
2. Casting head
- Dynamic mixing turbine or static mixer
5. Mould type and design
Telene® 1810 and 1811 can be processed by using low cost moulds without temperature control, which makes it different from 1650 formulation.Prototype tool makers can advise on tool design.
We can recommend several materials: MDF coated by filler and hardener, gel coated glass fiber reinforced polyester or polyvinyl ester composites, epoxy resins, high density polyurethane boards.
6. Release agent
We can recommend different release agents depending on the type of material used for the mould, for instance:MDF moulds: paste wax as typically used for furniture
Composite moulds: Loctite 700-NC Frekote