HYTAC LPX
HYTAC-LPX is a new epoxy syntactic plug assist material aimed at providing heavy gauge thermoformers with a proven solution that meets the demands of large plug requirements.
HYTAC-LPX is designed for custom-cast requirements where wood cannot provide the required quality and where heated aluminum is too expensive. It is available as a solid syntactic or as the outer layer of a two-part system consisting of a core of epoxy coated large, hollow composite spheres and an exterior of high-performance syntactic foam. LPX is a specialized formulation that enhances friction and reduces the risk of cracking in large geometries.
Low thermal conductivity and specific heat
The syntactic foam structure of HYTAC-LPX maintains the low thermal conductivity desired in a plug assist material.
Easily machined or formed
HYTAC-LPX may be cast to near net shape and/or machined using conventional equipment.
Typical Properties
| Color | Off-white |
| Density (ρ) | 48-52 lb/ft3 [768-833 kg/m3] |
| Thermal Conductivity | 0.10 BTU/hr-ft-°F [0.17 W/m°K] |
| Coefficient of Thermal Expansion (CTE) | 22 x 10-6 in/in/°F [41 x 10-6 m/m/°C] |
| Compressive Strength | 8,530 psi [58.8 MPa] |
| Service Temperature | 350°F [176° C] |
| Flexural Toughness (ASTM D790) | 5.8 psi [39.9 kPa] |
Applications
HYTAC-LPX now makes it possible for heavy gauge thermoforming applications to realize the same material distribution/sheet thickness reductions and energy savings as are expected in thin-gauge thermoforming.
Resources:
HYTAC LPX Data Sheet (PDF)
HYTAC LP_Appliance_Case Study (PDF)