MarkForged's High-Strength, High-Temperature Fiberglass (HSHT) is a material uniquely designed for users who need strong parts for applications in higher temperature environments, over 105°C.
An example of parts that would need HSHT fiberglass are prototypes that are used in under-hood automotive applications. The exception would be in the engine component itself where the temperature reaches much higher than 140°C.
The following is useful information regarding printing with HSHT Fiberglass:
- Printing with HSHT Fiberglass is approximately 50% slower than printing with Standard Fiberglass.
- If printing with Nylon, is is normal for a slight yellowing of the printed Nylon to occur when printing with HSHT Fiberglass.
The following chart outlines the product specifications for HSHT as well as Standard Fiberglass:
|Tensile Strength (MPa)||Fiber: ASTM D3039||600||590|
|Tensile Modulus (GPa)||Fiber: ASTM D30309||21||21|
|Tensile Strain at Break (%)||Fiber: ASTM D3039||3.9||3.8|
|Flexural Strength (MPa)||ASTM D790*||420||210|
|Flexural Modulus (GPa)||ASTM D790*||21||22|
|Flexural Strain at Break (%)||ASTM D790*||2.2||1.1|
|Compressive Strength (MPa)||ASTM D6641||192||140|
|Compressive Modulus (GPa)||ASTM D6641||21||21|
|Compressive Strain at Break (%)||ASTM D6641||N/A||N/A|
|Heat Deflection Temperature (°Celcius)||ASTM D648
*Measured by a method similar to ASTM D790