EQUIPMENT SERIES
Silicon cutting coolant
DIASC / Sanchao ↗A water-soluble synthetic fluid that cools and lubricates diamond wire and carries away debris when sawing silicon wafers and polysilicon.
All values come from Sanchao's coolant page. Sanchao calls the fluid non-toxic, kind to skin and free of pollution; the page carries no SDS or test report to go with that.
General illustration of wafer processing equipment, not a photograph of this model. Ask the manufacturer for current photographs and layout drawings of the configuration offered.
START WITH YOUR PRODUCTION TASK
Get the current SDS and technical sheet for the exact grade, check them against your water, materials and plant, then trial cut quality, residue, circulation and fluid use with Sanchao's guidance.
SOURCE-LINKED DATA
Published specifications
Values below are published by the manufacturer, each with the date its source was checked. Ask for the figures that apply to your configuration and material in the quotation.
The manufacturer has not published a complete specification table for this entry. Request the exact offered drawing and operating limits.
01 · Manufacturer information
What the coolant is and how Sanchao describes its safety
The fluid is a synthetic, water-soluble mix: surfactants and lubricants, rust inhibitors and further additives, according to Sanchao. It cools the wire, lubricates the cut and flushes out silicon fines. Sanchao names wafer and polysilicon sawing with diamond wire among its uses. The page also mentions a German-origin formulation and a long history; ask for formulation or licence papers if that matters to your purchase.
Sanchao says the fluid causes no toxicity, skin harm, pollution or corrosion. For handling and waste planning, ask for the current SDS, hazard classification, material compatibility results and wastewater guidance for the grade you will receive. Check those papers against your own site rules before the first drum arrives.
Source: DIASC cutting coolant page
02 · Manufacturer information
Coolant property and pack values
| Entry | Sanchao value | Ask about |
|---|---|---|
| Dilution | 1:20 with water | Whether the ratio is by volume or mass, and which way round concentrate and water are counted. |
| pH | 8.0–9.2 | Concentrate or diluted, at what temperature and by which method. |
| Defoaming | ≤2 ml | The test procedure and the state of the sample. |
| Specific gravity, water=1 | 1.02–1.15 | Temperature, concentrate or dilute, and the grade supplied. |
| Surface tension | ≤30 dyn/cm | Test method and concentration. |
| Shelf life and packs | Two years; 25 kg and 200 kg | Storage conditions, batch expiry, container type and transport rules. |
Source: DIASC cutting coolant page
03 · PVYard procurement analysis
Papers and site details to settle
Grade documents
Exact grade name, SDS, technical sheet, lot and expiry, plus Sanchao's storage, handling and upkeep instructions.
Fit with your process
Your saw, wire, silicon type, water quality and cleanliness targets; ask Sanchao to confirm metals, seals and filters are compatible.
Loop control
Dilution basis, what to monitor, filtration, top-up and the point at which the bath is replaced.
Site duties
Assess fluid and waste streams against your plant rules using the documents for the grade and site; plan disposal as for any industrial fluid.
Source: DIASC cutting coolant page
04 · PVYard procurement analysis
Trial the fluid and the cut together
Settle the grade
Have the SDS, the test conditions behind each property and the dilution basis in hand before cutting.
Record the loop
Note water and plant conditions and the fluid and process controls Sanchao approves.
Check the silicon
Measure geometry and damage, residue and cleaning results and any downstream effect, with traceable stock.
Follow bath life
Track foaming, filtration and fines load, fluid use and replacement, and who handles and disposes of spent fluid.
Source: DIASC cutting coolant page
05 · PVYard procurement analysis
Cutting-coolant questions
Is there an SDS behind the non-toxic wording?
None is published on the page. Ask for the current SDS and hazard assessment.
Is 1:20 all I need to mix the bath?
No. Ask for the ratio basis and mixing guidance for the supplied grade, your water and your process.
Do these property values predict wafer yield?
No silicon cutting data is published. Your trial sets the yield figure.
Source: DIASC cutting coolant page
TURN THIS INTO A CLEAR REQUEST
Ask about this product
Include the product-specific questions above and replace every bracket with your actual requirement. Save your edited text to your sourcing brief, then review it before submitting an enquiry. Saving a brief does not send it to a manufacturer.
Sources
Manufacturer information and our buying guidance are labelled section by section above. Each source below shows the date it was checked.
DIASC cutting coolant page ↗
Source check: 2026-10-11 · Coolant page with property values, pack sizes, shelf life and listed silicon uses.