Syntac 350 and 351

Syntac®350 and 351

Syntac® 350 is the industry standard white syntactic foam made from high grade epoxy resin and hollow glass microspheres designed specifically for fabricating thermoforming plugs and other associated tooling. Syntac® 351 is a castable syntactic composite material that is supplied pre-blended with no weighing or mixing required. After curing it is a rigid, high strength material that exhibits the same properties as Syntac® 350. Syntac® 351 is a castable syntactic composite material that is supplied pre-blended with no weighing or mixing required. After curing it is a rigid, high strength material that exhibits the same properties as Syntac® 350.

Cost effective

Industry Standard

Available in block, rods and sheets

FDA compliant CFR 177.1630 for packaging

Key Applications

Syntac® 350 materials can be polished to achieve an extremely smooth surface finish

Food packaging < 250°F (121°C) 

Dry food packaging

Alcoholic beverage packaging

Syntac®350 and Syntac®351 typical properties

Syntac®350 - Syntac®351
Imperial Metric

Color

White

White

Density
42 lb/ft³
672 kg/m³
Service temperature 350 °F 177 °C
Thermal conductivity
0.07 BTU/hr-ft-°F
0.12 W/m°K
Specific heat 0.50 BTU/lb°F
2090 J/kg°K
Coefficient of thermal expansion
17x10⁶ in/in/°F
31x10⁶ cm/cm/°C
Compressive strength 6,500 psi 45 MPa 
Compressive modulus 339,000 psi 2337 MPa
 Shore D hardness 55 °D @ 350 °F
55 °D @ 117 °C
Product Sheet
Thermoforming - Syntac 350

Syntac®350 and 351


Related Products

Trelleborg Applied Technologies products related to Syntac®350 and 351 include

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