Why Choose our Fiberglass Backing Plates
Fiberglass is now the industry standard for flap disc bases because it delivers the perfect combination of performance and safety:
High Mechanical Strength:
Each plate withstands forces exceeding 3000 N, safe for up to 15,000 rpm rotation.
Excellent Balance and Stability:
Precision pressing ensures flatness tolerance within ±0.2 mm, reducing vibration and extending flap disc life.
Strong Resin Adhesion:
High-pressure curing creates durable bonding between layers, preventing delamination during use.
Heat and Moisture Resistance:
Fiberglass and phenolic resin maintain strength even under high grinding temperatures and humid conditions.
Lightweight and Rust-Free:
Unlike metal plates, fiberglass backing plates are light, corrosion-resistant, and easy to handle in automated production.

Technical Data
| Specification | Details |
|---|---|
| Material | Alkali-free fiberglass + phenolic resin |
| Layers | 7–10 (depending on disc size) |
| Diameter | 80–180 mm (customized sizes available) |
| Tensile Strength | ≥ 3000 N |
| Max Speed | 12,000–15,000 rpm |
| Standard | EN12413 / ISO 9001:2015 |
| Color Options |
Black, Brown, Yellow, or OEM |
Applications
Base for Flap Discs (zirconia, alumina, ceramic)
Used in metal grinding, stainless steel polishing, and wood finishing
Ideal for automatic flap disc production lines
Reinforcement for resin bonded abrasive tools
Quality Assurance
Every plate produced by Master Abrasive goes through strict testing for strength, balance, and dimensional accuracy.
We follow EN12413 safety standard and provide full traceability for each batch.
Our experienced technicians ensure consistent quality from fiberglass cloth weaving to final inspection.
Packaging & Supply
1000 pcs per carton / 24 cartons per pallet
Moisture-proof and export-grade packaging
OEM logo, label, and color customization available
Fast delivery through Qingdao Port within 10–15 days
Your Trusted Partner in Abrasive Solutions
With over two decades of manufacturing experience, Zibo Master Abrasive Tech Co., Ltd. has become a trusted supplier for flap disc manufacturers worldwide.
We deliver stable quality, competitive pricing, and technical support that help our customers improve productivity and reduce production costs.
Partner with us to build better, safer, and longer-lasting flap discs.

