BE-SG21 Mineral Fibre
BE-SG21 is an asbestos-free man-made mineral fibre model in the BOER BE series for sealing materials. Typical melting point ＞1000℃, fibre length/diameter ratio ≥150, shot content ≤1%; asbestos-free and RoHS/SVHC compliant, suitable for beater-add / sheet-making gaskets.
What is BE-SG21
BE-SG21 is an asbestos-free man-made mineral fibre model in the BOER BE series for sealing materials. Typical melting point ＞1000℃, fibre length/diameter ratio ≥150, shot content ≤1%; asbestos-free and RoHS/SVHC compliant, suitable for beater-add / sheet-making gaskets.
Key features
- Wet-process manufacture: uniform surface treatment and stable quality
- Low shot content and good dispersibility in formulations
- High-temperature performance: melting point is ＞1000℃
- Surface treatment improves bonding with phenolic resin and other binders
- Asbestos-free; passed SGS asbestos, RoHS and SVHC testing
Packaging & storage
Normally packed in moisture-proof laminated bags or eco-friendly paper bags, with custom packaging on request. Store in a dry, ventilated place away from moisture, open flame and strong oxidizers.
Typical parameters
| Appearance / Colour | Melting Point | Fibre Length/Diameter (L/D) | Shot Content (>125 μm) | Hardness | Density (g/cm³) | Moisture | Surface Treatment Content |
|---|---|---|---|---|---|---|---|
| 绿/黄 | ＞1000℃ | ≥150 | ≤1% | 6 | 2.82 | ＜2% | ＜6% |
Note: values above are model typical ranges; each shipment is governed by its batch test report.
Composition / raw-material information
| Substance | CAS No. | EC No. | Range |
|---|---|---|---|
| SiO₂ | 7631-86-9 | 231-545-4 | 50-63 |
| Al₂O₃ | 1344-28-1 | 215-138-6 | 24-37 |
| CaO | 1305-78-8 | 215-138-9 | |
| MgO | 1309-48-4 | 215-171-9 | ≤6 |
| K₂O | 12136-45-7 | 235-227-6 | |
| Na₂O | 1313-59-3 | 215-208-9 | |
| TiO₂ | 13463-67-7 | 236-675-5 | |
| Fe₂O₃ | 1309-37-1 | 215-168-2 | 2.5-9 |
| 纤维烧失率 | <1 | ||
| ROHS指令 | 符合 | ||
| 高关注物质测试 | 通过 |
Note: composition shows model typical ranges; subject to the batch test report.
Testing & certification
- Asbestos-free: SGS test report CANEC25025290506 (2025-10-22); all 6 asbestos types, including chrysotile, not detected (XRD/PLM, detection limit 0.1%)
- RoHS: 10-substance test passed, report CANEC25025290502
- SVHC: 250-substance test passed, report CANEC25025290504, complying with applicable REACH requirements
- Quality system: ISO9001:2015 certified, registration 0350325Q30014R2S
- MSDS/SDS: prepared in accordance with REACH Annex II (e.g. EECSSDS2605060802)
See Certifications for certificate and report numbers; originals can be requested for verification.
10 things you may want to know about BE-SG21
Q1What products or processes is BE-SG21 used for?
Q2How does BE-SG21 differ from other models in the same series?
Q3What is the melting point and heat resistance of BE-SG21?
Q4What is the shot content and dispersibility of BE-SG21?
Q5Surface treatment and resin bonding of BE-SG21?
Q6Does BE-SG21 contain asbestos?
Q7Is BE-SG21 RoHS/SVHC compliant?
Q8Is an MSDS/SDS available for BE-SG21?
Q9How is BE-SG21 packaged and stored?
Q10How can I request a BE-SG21 sample or selection support?
Other models in the same series
More models and parameters: Sealing materials series.
Need a sample of BE-SG21 or selection support?
The Boer technical team offers selection, sampling and formulation support.