Difference Between Greaseproof and Silicone Paper: The 40GSM Technical Guide
A professional guide to material safety, heat resistance, and identifying market deceptions in food packaging.
1. Engineering Specifications: 40GSM Fundamentals
In paper manufacturing, 40GSM (Grams per Square Meter) is the "Sweet Spot" for food-grade barriers. However, the performance difference between a 40GSM Greaseproof sheet and a 40GSM Silicone-coated sheet is determined by the surface treatment.
| Key Feature | Greaseproof Paper | Silicone Coated Paper |
|---|---|---|
| Main Function | Oil barrier for wrapping | Non-stick for baking |
| Heat Resistance | Low (Max 180°C) | High (Up to 230°C) |
| Grease Metric | Kit Level 3-7 | Kit Level 12+ |
Beware of "Pseudo-Silicone-Coated" Deception
To reduce costs, many unscrupulous suppliers are marketing Kit 7 Greaseproof Paper as "Silicone Baking Paper" for air fryers. This is a deceptive practice.
- Safety Risk: Standard greaseproof paper is not designed for direct air fryer heat and can scorch or smoke at high temperatures.
- Stickage Issue: Without a silicone layer, food will adhere to the paper fibers, ruining your product presentation.
Extreme Heat Stability
Our Double-Sided Silicone Baking Paper Roll is lab-tested to withstand 220°C (428°F) for 20 minutes of continuous heating.
Certified Safety
Safety is non-negotiable. Our silicone coating is 100% food-grade and inert. We maintain full FDA and LFGB certifications, ensuring no chemical migration.
Procurement Strategy: When to use 30GSM?
For daily applications like burger wrapping or cold deli liners, using 30GSM Greaseproof Paper is a highly cost-effective choice that saves up to 15% on material costs.
Direct Factory Partnership
Get certified, high-performance food paper without the middleman markups.