38 gsm or 40 gsm baking paper: which should you order?
Both weights are standard silicone coated grades. The choice mostly depends on what your market already buys and whether you sell by weight, length or count.
Buyers outside mainland China mostly order 40 gsm, and buyers in mainland China mostly order 38 gsm. 40 gsm is slightly thicker and stiffer in the hand, while 38 gsm gives about 5% more area per ton. If you are matching an existing product, keep the same weight.
Side by side
| Comparison | 38 gsm | 40 gsm |
|---|---|---|
| Area per ton | About 26,300 m² | 25,000 m² |
| Length per ton at 1,000 mm width | About 26.3 km | 25 km |
| Typical buyers | Mainland China | Most export markets |
| Silicone coating | Both sides, or one side | Both sides |
| Colours | Natural brown or white | Natural brown or white |
How to decide
- Replacing a current supplier: order the weight on your existing specification, so roll weight and feel stay the same.
- Selling by length or sheet count: 38 gsm gives more rolls or sheets from each ton.
- Selling a heavier-feeling product, or into a market where 40 gsm is the norm: choose 40 gsm.
- Not sure: ask for samples of both. They are free and leave the factory the same day the courier is paid.
What stays the same
Both weights are food-contact silicone coated paper from the same paper series, in natural brown or white, in any width up to 1,800 mm. The third-party reports listed on our quality page cover this silicone paper.
Frequently asked questions
Is paper weight measured in gsm or microns?
In gsm, grams per square metre. We do not specify silicone paper by thickness in microns.
What is the minimum order for jumbo rolls?
1 ton, in either weight. A full container takes about 20 days.
Are samples of both weights available?
Yes. Samples are free; the buyer prepays the courier.
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More guides
Tell us the product, size and quantity
- Within 24 hours on working days: FOB Qingdao price per ton.
- Samples leave the factory the same day the courier is paid.
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Thank you — your request is in.
This is what happens next:
- Sun Zhao replies by email within 24 hours on working days (UTC+8), with a FOB Qingdao price or the sample courier cost.
- Lab reports (FDA, PFAS, GB 4806.8) and the FSC certificate come with the reply.
- Samples leave the factory the same day the courier is paid; production is about 20 days after a 30% deposit.
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