Vinyl Ester GF30-CSM
Reinforced grade
GF30-CSM = glass-reinforced laminate, ~30 wt% chopped strand mat
Standard corrosion-tank/pipe laminate body: isotropic, easy to build up, moderate strength.
Values for the GF30-CSM condition
Other Vinyl Ester grades and fills
Vinyl Ester is listed in 10 conditions; see the grade overview at Vinyl Ester.
Compare all 10 grades and fillsHide
| Grade · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
Mineral/silica-filled vinyl ester | For acid-proof floor mortars, brick-lining bedding and thick trowelled coatings where shrinkage and cost must drop. | — | 30 | 0.6 | — |
Elastomer-modified (rubber-toughened) vinyl ester | Choose for impact, abrasion, thermal-shock and adhesion-critical linings; trades ~15 °C of HDT for toughness. | — | 76 | 9 | — |
Flame-retardant vinyl ester (brominated or ATH-filled), UL 94 V-0 /… | Required for ducting, scrubbers, mass transit and offshore FRP where fire code applies. | — | 76 | 4.5 | — |
Novolac (phenolic) epoxy vinyl ester | Pick when service exceeds ~100 °C or the medium contains hot acids, solvents or oxidizers. | — | 78 | 3.5 | — |
Urethane-modified vinyl ester | Use for high HDT with good toughness/adhesion in pultrusion, gratings and cured-in-place liners. | — | 80 | 6 | 88 Shore D |
Low-styrene-emission / low-VOC vinyl ester | Choose for open-mold shop work under VOC limits; mechanical properties near standard grade but interlaminar bonding needs sanding. | — | 80 | 5 | 87 Shore D |
NEATDefault Neat cast resin | Default general-purpose corrosion resin for tanks, pipe and FRP linings up to ~95 °C. | — | 84 | 5.5 | 88 Shore D |
GF30-CSMThis page Glass-reinforced laminate, ~30 wt% chopped strand mat | Standard corrosion-tank/pipe laminate body: isotropic, easy to build up, moderate strength. | — | 120 | 1.8 | — |
Glass-reinforced, ~55–65 wt% continuous roving | Highest structural efficiency for pressure pipe, tank hoop layers and pultruded profiles; properties are directional. | — | 550 | 2 | — |
Carbon-fiber reinforced vinyl ester laminate | Niche stiffness-critical corrosion/marine parts and VARTM structures where glass is too flexible. | — | 1,000 | 1.2 | — |
What is Vinyl Ester GF30-CSM?
Vinyl Ester GF30-CSM is Vinyl Ester in the GF30-CSM grade — standard corrosion-tank/pipe laminate body: isotropic, easy to build up, moderate strength. Vinyl Ester GF30-CSM has a tensile strength of 120 MPa (17.4 ksi), stronger than 93% of polymer grades. Elongation at break is 1.8% and the elastic modulus is 9 GPa (1.31 Msi). Vinyl Ester GF30-CSM has a density of 1.5 g/cm³ (0.0542 lb/in³), heavier than 88% of polymer grades. Its glass-transition temperature is 120°C (248 °F). NEAT is the default condition FabDigit quotes; GF30-CSM is available on request or by drawing note.
Advantages
- Stiff — 9 GPa (1.31 Msi), better than 93% of polymer grades
- Conducts heat well — 0.28 W/m·K (0.162 BTU/hr·ft·°F), better than 79% of polymer grades
Limitations
- Limited ductility — 1.8%, worse than 97% of polymer grades
- Limited formability — 5/100, worse than 95% of polymer grades
- Low fracture toughness — 0.85 MPa·√m (0.774 ksi·√in), worse than 91% of polymer grades
- Difficult to weld — 5/100, worse than 89% of polymer grades
- Heavy — 1.5 g/cm³ (0.0542 lb/in³), worse than 88% of polymer grades
Vinyl Ester GF30-CSM properties
Typical room-temperature values for Vinyl Ester GF30-CSM; 14 are specific to this condition. Other listed values are Vinyl Ester reference data and may not represent this condition. Bars are the position among polymer grades.
Physical5
Vinyl Ester GF30-CSM has a density of 1.5 g/cm³ (0.0542 lb/in³), heavier than 88% of polymer grades. Its glass-transition temperature is 120°C (248 °F).
Mechanical15
Vinyl Ester GF30-CSM has a tensile strength of 120 MPa (17.4 ksi), stronger than 93% of polymer grades. Elongation at break is 1.8% and the elastic modulus is 9 GPa (1.31 Msi).
Thermal10
Vinyl Ester GF30-CSM is rated for continuous service to 95°C (203 °F). It conducts heat at 0.28 W/m·K (0.162 BTU/hr·ft·°F), better than 79% of polymer grades. Thermal expansion is 25 µm/m·K (13.9 µin/in·°F).
Electrical7
Vinyl Ester GF30-CSM is an electrical insulator with a dielectric strength of 17 kV/mm (431.8 V/mil) and a resistivity of 1×10¹³ Ω·m.
Chemical & Environmental3
Corrosion resistance is very good (80/100), worse than 52% of polymer grades. UV resistance is fair.
Sustainability4
Producing a kilogram of Vinyl Ester GF30-CSM takes about 80 MJ of energy and emits 5 kg of CO₂ — less than 85% of polymer grades. Typical recycled content is 0%.
Manufacturability6
Vinyl Ester GF30-CSM's machinability is fair (35/100, worse than 84% of polymer grades); weldability not recommended (5/100); formability not recommended (5/100).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with Vinyl Ester GF30-CSM
Is Vinyl Ester easy to machine?
Cut/drill cured laminate with carbide or PCD tooling, low feed and dust extraction — the styrene-cured matrix chips and glass is highly abrasive.
Can Vinyl Ester be welded?
Not weldable; joints are made by secondary hand lay-up (butt-strap) or by methacrylate/epoxy structural adhesive on sanded, solvent-wiped surfaces.
Can Vinyl Ester be formed, bent or molded?
Processed liquid by hand lay-up, spray-up, filament winding, pultrusion, RTM/VARTM; MEKP 1–2 phr with cobalt promoter, gel 15–30 min at 25 °C, then post-cure 2–4 h at 80–120 °C to reach full Tg and chemical resistance.
What surface finishes work on Vinyl Ester?
Finish with a resin-rich veil/C-glass surfacing layer or pigmented gel coat; wax-free layers must be sanded before recoating, and outdoor parts need a UV-stabilized topcoat or paint.
Vinyl Ester chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| bisphenol-A epoxy methacrylate oligomer novolac-epoxy methacrylate in high-temperature grades | 50 – 65 | 58 |
| styrene (reactive diluent)some grades substitute vinyl toluene / low-VOC diluents | 33 – 45 | 40 |
| inhibitor (hydroquinone type)shelf-life stabiliser | 0.01 – 0.05 | 0.02 |
| cobalt octoate / DMA acceleratorpre-promoted grades | 0.1 – 0.5 | 0.3 |
| MEKP initiator (added at use)phr on resin, room-temperature cure | 1 – 2 | 1.5 |
| brominated bisphenol-A backbone (FR gradwith Sb2O3 synergist for V-0 | 0 – 20 | 0 |
| glass fiber (laminate variants)E-glass or ECR-glass CSM / roving | 0 – 65 | 30 |
Vinyl Ester GF30-CSM — frequently asked
What is Vinyl Ester GF30-CSM used for?
Vinyl Ester GF30-CSM is typically used for chemical storage tanks/piping, corrosion-resistant composite linings and marine composites. In short: corrosion-grade FRP matrix; tougher than polyester; cheaper than epoxy.
What is the tensile strength of Vinyl Ester GF30-CSM?
Vinyl Ester GF30-CSM has a typical tensile strength of 120 MPa (17.4 ksi) — stronger than 93% of polymer grades. Strength varies by condition: see the 10 listed tempers.
Is Vinyl Ester GF30-CSM easy to machine?
Not especially — machinability is rated fair (35/100, worse than 84% of polymer grades). Cut/drill cured laminate with carbide or PCD tooling, low feed and dust extraction — the styrene-cured matrix chips and glass is highly abrasive.
Can Vinyl Ester GF30-CSM be welded?
Not readily — weldability is rated not recommended (5/100). Not weldable; joints are made by secondary hand lay-up (butt-strap) or by methacrylate/epoxy structural adhesive on sanded, solvent-wiped surfaces.
What surface finishes work on Vinyl Ester GF30-CSM?
Finish with a resin-rich veil/C-glass surfacing layer or pigmented gel coat; wax-free layers must be sanded before recoating, and outdoor parts need a UV-stabilized topcoat or paint.
Can Vinyl Ester GF30-CSM be formed, bent or molded?
Processed liquid by hand lay-up, spray-up, filament winding, pultrusion, RTM/VARTM; MEKP 1–2 phr with cobalt promoter, gel 15–30 min at 25 °C, then post-cure 2–4 h at 80–120 °C to reach full Tg and chemical resistance.
What is the maximum service temperature of Vinyl Ester GF30-CSM?
Vinyl Ester GF30-CSM is rated for continuous use to about 95°C (203 °F), and briefly to 120°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
Sources
- Derakane and Derakane Momentum epoxy vinyl ester resins — product and chemical resistance guides — Ashland / INEOS Composites (2022)
- ASTM D638 / D790 / D648 / D256 / D570 test methods for plastics — ASTM International (2022)
- ASTM C582 — Contact-Molded Reinforced Thermosetting Plastic Laminates for Corrosion-Resistant Equipment — ASTM International (2021)
- Engineered Materials Handbook, Vol. 2: Engineering Plastics / Vol. 1 Composites — ASM International (1988)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.