PKSC 4300: Seal Curves Exam
1. What is the purpose of seal curves?: Seal curves are used to understand how seal strength vary
with time, energy, and pressure
2. What is the most common type of seal curve?: Seal strength vs temperature
3. What settings should be utilized with seal curves?: - a seal curve should utilize you machine
settings
- peelable seals should use the average
- seal breaks should use the max
4. What is the MST or SIT?: MST = minimum seal temperature
SIT = seal initiation temperature
5. What are the two broad categories of seals for seal curves?: seals that peel and seals
that break
6. Where is the best place on the seal curve to operate your sealer?: where the seal
curve is flat and consistent
7. Why does the seal curve rise or fall at the end?: - may fall because too much energy will
degrade the polymer
1. What is the purpose of seal curves?: Seal curves are used to understand how seal strength vary
with time, energy, and pressure
2. What is the most common type of seal curve?: Seal strength vs temperature
3. What settings should be utilized with seal curves?: - a seal curve should utilize you machine
settings
- peelable seals should use the average
- seal breaks should use the max
4. What is the MST or SIT?: MST = minimum seal temperature
SIT = seal initiation temperature
5. What are the two broad categories of seals for seal curves?: seals that peel and seals
that break
6. Where is the best place on the seal curve to operate your sealer?: where the seal
curve is flat and consistent
7. Why does the seal curve rise or fall at the end?: - may fall because too much energy will
degrade the polymer
