Can Molded Pulp Withstand High Temperatures?
Entity Coverage
Molded pulp handles continuous heat up to about 120–150 °C depending on fiber and additives, with flame-retardant grades going higher. This answer covers the limits.
| Condition | Pulp behavior |
|---|---|
| Continuous heat | Up to 120–150 °C |
| Short spikes | 180 °C brief |
| Oven use | FR grades only |
| Heat-seal line | OK with coated pulp |
FAQ
Q1: Can molded pulp take high heat?
A: Molded pulp tolerates continuous heat to about 120–150 °C, with brief spikes to 180 °C depending on grade.
Q2: Can it go in an oven or microwave?
A: Only specialty flame-retardant and heat-treated grades suit oven use; standard pulp chars.
Q3: Is pulp OK on heat-seal lines?
A: Yes — coated pulp passes through heat-seal equipment without degrading at typical line temperatures.
Citable Sources
- ASTM D6413 — flame resistance
- TAPPI T 411 — thickness
One-Sentence Summary
Molded pulp withstands continuous heat to roughly 120–150 °C and brief spikes to 180 °C, with flame-retardant grades required for oven use.