
Chopped Strand Mat
Chopped strand mat is a widely used reinforcing material in the composites industry. Its production process involves cutting glass fibers into 50 mm lengths. They are then randomly distributed to form a mat. Lastly, an adhesive bonds them together. Its main characteristics are as follows:
- Strength: CSM has high tensile strength. It is suitable for large parts and structural uses.
- It works with many resins, including polyester, vinyl ester, epoxy, and phenolic.
- Flexibility: The random fiber orientation lets the mat easily conform to complex shapes. This helps with hand layup and molding processes.
- Chemical and Moisture Resistance: CSM’s glass fibers resist chemicals and moisture. This improves the durability of composite structures.
- Electrical Performance: Glass fibers insulate well. So, CSM is good for jobs needing electrical insulation.
Continuous Filament Mat
A continuous filament mat is a versatile, high-performance reinforcement. It is used in the marine, construction, transportation, and energy industries. It makes glass fibers, randomizes their orientation, and bonds them with an adhesive. Its characteristics are as follows:
- High Tensile Strength: CFM can resist tensile forces in dry and wet conditions. It has increased strength in all directions.
- Excellent Wet-Out: This mat improves the wet-out of glass filaments and strands. It promotes complete resin impregnation.
- Porosity: It allows easy resin flow, aiding complete impregnation. It’s suitable for vacuum infusion and resin transfer molding (RTM).
- Adaptability: The mat can fit complex shapes without wrinkling or leaving resin-rich areas. These could cause laminate cracking.
- Compatibility: CFM works with various resin systems. They are polyester, vinyl ester, polyurethane, and epoxy resins.


Fiberglass Surface Tissue
Fiberglass surface tissue, or fiberglass veil, is a thin, lightweight, non-woven fabric. It is made from randomly oriented glass fibers. It is mainly used as a surface layer in composite laminates. It improves surface quality and adds other benefits.
- Thin and Light:
- Fiberglass surface tissue is fragile. It weighs about 25 to 30 grams per square meter. It resembles tissue paper.
- Smooth Surface:
- It covers the coarse glass patterns from CSM and other reinforcements. It creates a smooth, resin-rich surface. This is both pleasing and prevents print-through of underlying fibers.
- Enhanced Resin Flow and Wet-Out:
- This veil wets out quickly, and resin easily soaks it. This helps achieve consistent, high-quality laminates. It needs 70-100 grams of resin per square meter. This depends on the substrate and method of application.
- Enhanced Durability:
- The veil forms a resin-rich surface. This improves the laminate’s resistance to corrosion, UV radiation, and moisture. It enhances the durability and lifespan of composite structures.
- Compatibility:
- It works with various resin systems, including polyester and epoxy. So, it suits many composite applications.
Battery Separator Tissue
Battery separator tissue is critical in many batteries, like lithium-ion and lead-acid ones. It prevents short circuits, boosts ion conductivity, and improves battery safety and performance.
- Mechanical Strength:
- Glass fiber and polyolefin separators are very strong. This is crucial for keeping the battery’s structure intact during use.
- Thermal Stability:
- Cellulose-based separators are more thermally stable than polyolefin ones. So they are better for high-temperature applications.
- Electrolyte Absorption and Wettability:
- Cellulose-based separators are highly porous. They absorb electrolytes well. This boosts ion conductivity and battery performance.
- Glass fiber separators have good wettability. This ensures effective electrolyte distribution within the battery.
- Safety Features:
- Advanced separators, like those with nano-silica or hybrid materials, are better. They are more flame-retardant and thermally stable. This boosts the safety of lithium-ion batteries.


Pipe Tissue (S-PM Tissue)
S-PM tissue, or pipe-wrapping tissue, is a fiberglass surface tissue. It protects buried steel pipelines that transport oil or gas from corrosion. The main features and specifications of S-PM tissue are:
- Excellent Fiber Distribution: Ensures uniformity and consistency in application.
- High Tensile Strength: Provides durability and resistance to mechanical stress.
- Good Tear Strength: Enhances the material’s ability to withstand tearing forces.
- Flexibility: It lets the tissue shape into the pipeline, ensuring a tight, secure wrap.
Roofing Tissue
Roofing tissue, or fiberglass roofing tissue, is a specialized fiberglass. It serves as a base material for waterproofing and roofing applications. The main details about roofing tissue are:
- High Tensile Strength: Roofing tissue has a high tensile strength in both the machine (MD) and cross-machine (CMD) directions. It is durable and resistant to mechanical stress.
- Good Tear Strength: It has good tear strength. This is vital to prevent damage during installation and use.
- Flexibility and Conformability: The random orientation of the glass fibers lets the tissue fit complex shapes. This makes it suitable for various roofing applications.
- Corrosion and Moisture Resistance: Fiberglass roofing tissue resists corrosion and moisture. It boosts roofing systems’ durability and lifespan.
- Compatibility with Bitumen and Asphalt: Roofing tissue works well with bitumen and asphalt. It allows for effective impregnation and bonding, which is crucial for waterproofing.


Carpet and Wall Covering Tissue
Fiberglass tissue for carpets and wall coverings is vital. It is used in their structure and surface treatment. It has high tensile and tear strength and uniform thickness. It is also compatible with PVC. So, it is an ideal substrate for these applications. This tissue improves the durability, look, and stability of carpets and walls. It’s a valuable material for interior design and construction.
Fiberglass Mat Complete Technical Guide: Quick Reference & Selection Guide
🔍 Quick Navigation
| Section | Use When You Need |
|---|---|
| Mat Selection Table | Choose the right mat type |
| Property Comparison | Compare performance data |
| Pultrusion Guide | Optimize pultrusion process |
| Problem Solver | Fix processing issues |
| Application Matrix | Find applications |
Related Resources:
- 🏠 IncomePultrusion Homepage – Complete pultrusion solutions
- 📖 Complete Pultruded Profiles Guide – Detailed pultrusion processes
- 🔧 Pultrusion Equipment Selection – Machinery guidance
Mat Selection Table
Quick Selection Guide
| Your Requirement | Recommended Mat | Weight (g/m²) | Cost Level | Key Benefit |
|---|---|---|---|---|
| General Purpose | CSM | 225-450 | $ | Best value |
| High Strength | CFM | 300-600 | $$$ | +30% strength |
| Marine/Corrosion | ECR-CSM | 300-450 | $$ | Superior durability |
| Smooth Finish | Surface Mat | 25-50 | $$ | Professional appearance |
| Aerospace/Premium | S-Glass CFM | 200-400 | $$$$ | Maximum performance |
| Fire Resistance | FR-CSM | 300-600 | $$$ | Meets fire codes |
Mat Type Comparison
| Property | CSM | CFM | Surface Mat |
|---|---|---|---|
| Strength | ⭐⭐⭐ | ⭐⭐⭐⭐⭐ | ⭐⭐ |
| Cost | ⭐⭐⭐⭐⭐ | ⭐⭐⭐ | ⭐⭐ |
| Processing | ⭐⭐⭐⭐⭐ | ⭐⭐⭐⭐ | ⭐⭐⭐ |
| Impact Resistance | ⭐⭐⭐ | ⭐⭐⭐⭐⭐ | ⭐⭐ |
| Surface Finish | ⭐⭐ | ⭐⭐⭐ | ⭐⭐⭐⭐⭐ |
Property Comparison
Mechanical Properties Quick Reference
| Mat Type | Tensile Strength (MPa) | Flexural Strength (MPa) | Density (g/cm³) | Relative Cost |
|---|---|---|---|---|
| E-Glass CSM | 80-150 | 150-300 | 1.8-2.1 | 1.0x |
| E-Glass CFM | 120-200 | 200-400 | 1.9-2.2 | 1.3x |
| S-Glass CFM | 180-300 | 300-500 | 1.9-2.1 | 4.5x |
| ECR-Glass CSM | 85-160 | 160-320 | 1.8-2.1 | 1.2x |
Alternative Reinforcement Comparisons
| Material | Strength (MPa) | Weight (g/cm³) | Cost Factor | Best Use Case |
|---|---|---|---|---|
| Fiberglass Mat | 80-300 | 1.8-2.2 | 1.0x | General purpose |
| Carbon Fiber | 300-800 | 1.5-1.6 | 10-15x | Aerospace, premium |
| Steel Reinforcement | 400-600 | 7.8 | 0.8x | Traditional construction |
| FRP Rebar vs Steel | 500-1000 | 2.0 | 2-3x | Corrosive environments |
Chemical Resistance Matrix
| Environment | E-Glass | ECR-Glass | C-Glass | Recommended Choice |
|---|---|---|---|---|
| Seawater | Good | Excellent | Good | ECR-Glass |
| Acids (pH 2-6) | Good | Excellent | Excellent | C-Glass for severe |
| Alkalis (pH 8-12) | Fair | Excellent | Good | ECR-Glass |
| Organic Solvents | Excellent | Excellent | Excellent | Any type |
| High Temperature | Good | Good | Fair | E-Glass + HR resin |
Pultrusion Optimization
Process Parameter Quick Guide
| Parameter | CSM Optimal | CFM Optimal | Units | Notes |
|---|---|---|---|---|
| Pulling Speed | 1.5-3.0 | 1.0-2.5 | m/min | CFM needs more time |
| Resin Temp | 25-35 | 20-30 | °C | Lower for CFM |
| Die Temp (Entry) | 100-120 | 90-110 | °C | Gradual heat-up |
| Die Temp (Exit) | 160-180 | 150-170 | °C | Complete cure |
| Mat Content | 20-30 | 15-25 | % by weight | Balance properties |
Resin Compatibility Matrix
| Resin Type | CSM Binder | CFM Binder | Surface Mat | Processing Notes |
|---|---|---|---|---|
| Polyester | ✅ Standard | ✅ Standard | ✅ Standard | Industry standard |
| Isophthalic Polyester | ✅ Enhanced | ✅ Enhanced | ✅ Enhanced | Superior chemical resistance |
| Vinyl Ester | ✅ Standard | ✅ Standard | ✅ Standard | Enhanced durability |
| Epoxy | ❌ Need special | ❌ Need special | ❌ Need special | Must specify epoxy-compatible |
| Polyurethane | ⚠️ Limited | ⚠️ Limited | ⚠️ Limited | Special binders required |
Troubleshooting Quick Reference
Common Problems & Solutions
| Problem | Symptoms | Quick Fix | Prevention |
|---|---|---|---|
| Poor Wet-Out | White streaks, dry spots | Reduce viscosity 10% | Check resin temp |
| Fiber Print-Through | Visible fiber pattern | Add 30-50g surface mat | Always use surface mat |
| Delamination | Layer separation | Increase mat content 5% | Optimize cure cycle |
| Surface Defects | Rough finish | Check surface mat weight | Monitor resin flow |
| Inconsistent Properties | Variable test results | SPC implementation | Better process control |
Process Troubleshooting Decision Tree
Problem: Poor Surface Quality
├── Fiber Visible? → Increase surface mat weight
├── Rough Texture? → Check resin viscosity
├── Color Variation? → Verify cure temperature
└── Dimensional Issues? → Check die condition
Application Selection Matrix
By Industry
| Industry | Primary Application | Recommended Mat | Weight Range | Special Requirements |
|---|---|---|---|---|
| Marine | Hulls, Decks | ECR-CFM | 400-800 g/m² | UV resistance, impact |
| Automotive | Body Panels | CSM/CFM Hybrid | 300-600 g/m² | Class A surface |
| Construction | Structural Profiles | CSM | 225-450 g/m² | Cost effective |
| Aerospace | Secondary Structure | S-Glass CFM | 200-400 g/m² | Weight critical |
| Wind Energy | Blade Skins | CFM | 450-900 g/m² | Fatigue resistance |
| Infrastructure | FRP Rebar Applications | ECR-CSM | 300-600 g/m² | Corrosion resistance |
By Loading Type
| Load Type | Mat Recommendation | Why This Choice | Typical Applications |
|---|---|---|---|
| Tensile | CFM + Rovings | Maximum strength in load direction | Pressure vessels, cables |
| Flexural | CSM Core + Surface | Good stiffness, smooth finish | Beams, panels |
| Impact | CFM Heavy | Energy absorption, damage tolerance | Marine hulls, automotive |
| Multi-directional | CSM | Balanced properties all directions | General structures |
Selection Workflow
Step-by-Step Decision Process
Step 1: Define Requirements
- [ ] Performance targets (strength, stiffness, impact)
- [ ] Environmental conditions (chemicals, temperature, UV)
- [ ] Cost targets and volume requirements
- [ ] Processing method and equipment
Step 2: Screen Materials
- [ ] Use selection table to identify candidates
- [ ] Check property comparison for performance
- [ ] Verify chemical resistance if applicable
- [ ] Consider cost and availability
Step 3: Validate Choice
- [ ] Small-scale testing with target resin
- [ ] Process compatibility verification
- [ ] Cost analysis including processing
- [ ] Supply chain evaluation
Step 4: Optimize Process
- [ ] Use pultrusion process guide for process parameters
- [ ] Review equipment selection criteria for machinery optimization
- [ ] Implement quality control procedures
- [ ] Monitor and adjust based on results
- [ ] Document lessons learned
Technical Specifications Summary
Standard Test Methods
| Property | Test Method | Units | Typical Range |
|---|---|---|---|
| Tensile Strength | ASTM D638 | MPa | 80-300 |
| Flexural Strength | ASTM D790 | MPa | 150-500 |
| Impact Strength | ASTM D256 | J/m | 50-200 |
| Glass Content | ASTM D2584 | % | 25-70 |
| Density | ASTM D792 | g/cm³ | 1.8-2.2 |
Quality Control Checklist
- [ ] Weight: ±5% from specification
- [ ] Moisture: <0.5% by weight
- [ ] Binder content: Within ±0.5% range
- [ ] Visual: No contamination or defects
- [ ] Compatibility: Verified with target resin
Cost Optimization Guide
Cost vs Performance Trade-offs
| Scenario | Standard Choice | Premium Choice | Cost Difference | Performance Gain |
|---|---|---|---|---|
| General Structural | CSM 450g | CFM 450g | +30% | +25% strength |
| Marine Hull | E-Glass CFM | S-Glass CFM | +250% | +40% properties |
| Surface Finish | No surface mat | 30g surface mat | +15% | Professional finish |
| Chemical Resistance | E-Glass | ECR-Glass | +20% | 2-5x service life |
Total Cost of Ownership
| Factor | CSM | CFM | Notes |
|---|---|---|---|
| Material Cost | 1.0x | 1.3x | Initial investment |
| Processing | 1.0x | 1.1x | May need optimization |
| Performance | 1.0x | 1.3x | Strength improvement |
| Service Life | 1.0x | 1.5x | Durability benefit |
| Maintenance | 1.0x | 0.7x | Less maintenance |
Quick Contact & Support
Technical Support
| Need | Contact Method | Response Time |
|---|---|---|
| Urgent Issues | Phone: 1-800-FIBER-MAT | <4 hours |
| Technical Questions | Email: tech@company.com | <24 hours |
| Sample Requests | Online form | 5-10 days |
| Training | Schedule consultation | Custom |
Download Resources
- 📄 Material Data Sheets – Complete property databases
- 📊 Selection Spreadsheet – Interactive selection tool
- 🎥 Process Videos – Visual processing guides
- 📚 Full Technical Guide – Complete 18,000 word version
Related Technical Guides
- 🔗 Pultrusion Equipment Selection – Comprehensive machinery guide
- 🔗 Advanced Pultrusion Process – Equipment and tooling details
- 🔗 Premium FRP Products – Product specifications and applications
- 🔗 Pultrusion Raw Materials Overview – Resin, fiber, and filler selection
This quick reference guide provides essential information for rapid decision-making. For detailed technical information, request our complete technical guide or contact our engineering team.
Fiberglass mat, also known as chopped strand mat, is a non-woven material made from randomly oriented glass fibers bonded together with a resin binder. It is designed to provide strength and rigidity to various surfaces.
Fiberglass mat offers several advantages, including:
- High strength-to-weight ratio
- Excellent conformability to complex shapes
- Good water resistance and durability
- Cost-effectiveness compared to other reinforcement materials
Yes, fiberglass mat is suitable for DIY applications such as home repairs, crafts, and small-scale fabrications. Its ease of handling makes it an excellent choice for a variety of projects.
No, traditional fiberglass mat is not compatible with epoxy resin because the binder used requires styrene to dissolve properly. It is typically recommended to use polyester or vinyl ester resins with fiberglass mat.
To apply fiberglass mat:
- Prepare the surface by ensuring it is clean and dry.
- Mix the appropriate resin according to manufacturer instructions.
- Apply a primer coat of resin to the surface.
- Lay the pre-cut fiberglass mat onto the resin.
- Saturate the mat with additional resin using a brush or roller.
- Repeat for multiple layers if necessary.
Yes, combining fiberglass mat with fiberglass cloth can enhance strength and thickness in applications. This combination allows for improved performance in specific projects.



