Shrink Plastic Sheets – Pack of 10 sheets (A4 sized, Transparent, Double-Sided Smooth – No Sanding)
Note: Please remove the protective plastic film before use.
 
What is Shrink Plastic?
Shrink plastic is a crafting material that you can draw or print on, then heat to shrink and thicken the design, turning it into cute miniature jewelry or decorative items.
 
During manufacturing, the plastic’s polymer chains are rapidly cooled to maintain a thin sheet. When reheated, these molecules contract, causing the plastic to shrink and become thicker. One of the most interesting parts is watching the plastic curl, shrink, and flatten again in the oven.
 
How to Use:
Prepare Your Design:
Draw, print, or stamp your desired image onto the plastic sheet
Because the sheet is thin and slightly transparent, it is ideal for tracing designs
Note: the final product will shrink to about 30% of the original size
 
Recommended Coloring Material:
Alcohol-based markers (black is commonly used for outlining)
Materials to Avoid:
Watercolors
Oil-based markers
Crayons (they melt during heating)
 
Shrinking Methods:
1. Oven (Recommended):
Bake at 160°C for 3–5 minutes
Do not leave unattended during baking
Use baking/parchment paper to line the tray
The process is complete when the plastic becomes flat, smaller, and thicker
Remove quickly and press flat with a heavy object until fully cooled
Smaller pieces will shrink faster
2. Heat Gun (300W):
Alternative method, but requires caution due to high heat
The airflow may blow the plastic away, so secure it properly
Best for small pieces
3. Hair Dryer:
May shrink very thin plastic, but not powerful enough for thicker sheets
Not recommended due to low effectiveness
4. Microwave:
Not suitable, as microwaves heat food differently and will not shrink the plastic properly
5. Direct Flame:
Will burn and blacken the plastic
Do NOT use under any circumstances