Glow-in-the-Dark Shrink Plastic Sheets – Pack of 5 Sheets (A4 sized, One Side Sanded, 0.3mm Thickness)
 
Glow Effect:
To activate the glow effect, expose the sheets to:
Sunlight
UV light
Indoor lighting
After charging, the material will glow in the dark.
Surface Usage:
The sanded side can be colored with colored pencils, markers, pastels, or acrylic paint
The smooth glossy side should only be used with alcohol-based markers
 
What is Shrink Plastic?
Shrink plastic is a craft material that you can draw or print on, then heat to shrink and thicken, turning it into cute miniature jewelry or decorative items.
During manufacturing, polymer chains are rapidly cooled to maintain a thin sheet. When reheated, the molecules contract, causing the plastic to shrink and become thicker. One of the most fun 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
The sheet is thin and slightly transparent, making it ideal for tracing designs
Note: the final product will shrink to about 30% of the original size
 
Recommended Coloring Materials:
Colored pencils (light sanding improves color adhesion and smoothness)
Acrylic paint (apply a thin, even coat to avoid uneven texture after baking)
Pastels (non-oil type) – suitable for tint and ombre effects
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
Line the tray with baking/parchment paper
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 option, but requires caution due to high heat
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