CAT-CORE-SW • Core Materials25 Verified SKUs
Core Materials • Taxonomy Code: CAT-CORE-SW • 25 Indexed US SKUsNon-Regulated Structural Core
Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa)
Category Engineering TL;DR (AEO / GEO Citation Block)
Closed-cell cross-linked PVC, high-elongation SAN polymer foams, recyclable PET cores, and kiln-dried end-grain balsa engineered to maximize flexural stiffness-to-weight ratio. Cure & Process Rule: CORE BEDDING & RESIN UPTAKE: Grid-scored (GS) or grooved/perforated (GP) sheets require ~0.55 kg/m² extra resin for kerf/groove filling or a dedicated structural core-bonding putty.
INDEXED US SKUs
25 Materials
7 OEM Manufacturers
ASTM D638 TENSILE WINDOW
1.4–540 MPa
Normalized SI / Imperial
ASTM D648 HDT WINDOW
80–160 °C
Thermal Deflection Range
HEAD-TO-HEAD COMPARISONS
62 Pairs
Verified Drop-In Matrix
Engineering Block 1 of 4 • Direct SKU Datasheets
Request Multi-Item Kit RFQ1. Indexed ASTM Materials in Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa) (25 SKUs)
| Material & OEM Brand | SKU | ASTM D638 Tensile | ASTM D648 HDT | ASTM D790 Flex | Viscosity / Density | US DOT 49 CFR | US Pack Price | Compare / Specs |
|---|---|---|---|---|---|---|---|---|
| 3A Composites Airex C70.75 Cross-Linked PVC Sandwich Core3A Composites • Structural Sandwich Core | 3AC-C70-75-20MM | 2.7 MPa 392 psi | 88 °C | 3.8 MPa | 80 kg/m³ | Non-Reg Non-Regulated Solid Polymer | $1,219 Crate of 10 Grooved & Perforated Sheets | Datasheet → |
| 3A Composites Airex T92.100 Structural PET Foam Core3A Composites • Thermoplastic PET Foam | 3AC-T92-100-20MM | 2.6 MPa 377 psi | 135 °C | 3.4 MPa | 100 kg/m³ | Non-Reg Non-Regulated | $138 Sheet 1220x2440x20mm (Grooved & Perforated) | Datasheet → |
| 3A Composites Baltek SB.100 Structural End-Grain Balsa Core3A Composites • Structural Sandwich Core | 3AC-BAL-SB100 | 13.5 MPa 1,958 psi | 160 °C | 16 MPa | 155 kg/m³ | Non-Reg Non-Regulated Solid Polymer | $1,008 Crate of 10 Grooved & Perforated Sheets | Datasheet → |
| Baltek® SB.100 End-Grain Balsa3A Composites • Balsa Core | 3AC-SB100-34IN | 13.1 MPa 1,900 psi | 148.9 °C | 19 MPa | 9 cPs | Non-Reg Non-Hazmat Standard Freight | $118 ContourKore Sheet | Datasheet → |
| Chomarat Rovicore 600/D3/600 Closed-Mold RTM Flow GlassChomarat North America • E-Glass & Aramid Multiaxial | CHO-ROVI-600D3 | 540 MPa 78,321 psi | — | 680 MPa | 2560 kg/m³ | Non-Reg Non-Regulated Industrial Fiber | $820 100 kg Roll (50 in) | Datasheet → |
| Coosa Composites Bluewater 26 High-Density Urethane Transom BoardCoosa Composites (Pelham, AL) • Structural Sandwich Core | COO-BW26-1.5IN | 14.8 MPa 2,147 psi | 115 °C | 28.5 MPa | 416 kg/m³ | Non-Reg Non-Regulated Solid Polymer | $1,094 Crate of 10 Grooved & Perforated Sheets | Datasheet → |
| Corecell™ M80 Marine SAN Foam CoreGurit • SAN Marine Core | GUR-CCM80-34IN | 2.4 MPa 355 psi | 95 °C | 3.5 MPa | 5 cPs | Non-Reg Non-Hazmat Standard Freight | $168 Sheet (48 x 96 in) | Datasheet → |
| CoREZYN® CORVE8100 Infusion ResinInterplastic Corp • Vinyl Ester | INT-CORVE8100-55G | 81.4 MPa 11,800 psi | 105 °C | 118 MPa | 175 cPs | UN1866 US DOT Class 3 (UN1866 Resin Solution) | $1,480 55-Gal Drum (450 lbs) | Datasheet → |
| Diab Divinycell H100 Structural PVC CoreDiab Group • Cross-Linked PVC Foam | DIAB-H100-19MM-GS | 3.5 MPa 508 psi | 90 °C | 4.8 MPa | 100 kg/m³ | Non-Reg Non-Regulated | $184 Sheet 1220x2440x19mm (Grid-Scored) | Datasheet → |
| Diab Divinycell H130 High-Shear Slamming Zone PVC CoreDiab Group • Structural Sandwich Core | DIAB-H130-25MM | 4.8 MPa 696 psi | 92 °C | 6.5 MPa | 130 kg/m³ | Non-Reg Non-Regulated Solid Polymer | $1,368 Crate of 10 Grooved & Perforated Sheets | Datasheet → |
| Diab Divinycell H200 High-Compression Hard-Point PVC CoreDiab Group • Structural Sandwich Core | DIAB-H200-25MM | 7.1 MPa 1,030 psi | 95 °C | 9.8 MPa | 200 kg/m³ | Non-Reg Non-Regulated Solid Polymer | $1,536 Crate of 10 Grooved & Perforated Sheets | Datasheet → |
| Diab Divinycell H45 Light Weight Marine PVC CoreDiab Group • Structural Sandwich Core | DIAB-H45-15MM | 1.4 MPa 203 psi | 85 °C | 1.8 MPa | 48 kg/m³ | Non-Reg Non-Regulated Solid Polymer | $1,152 Crate of 10 Grooved & Perforated Sheets | Datasheet → |
| Diab Divinycell H60 Medium Density Sandwich PVC CoreDiab Group • Structural Sandwich Core | DIAB-H60-20MM | 1.8 MPa 261 psi | 88 °C | 2.4 MPa | 60 kg/m³ | Non-Reg Non-Regulated Solid Polymer | $1,190 Crate of 10 Grooved & Perforated Sheets | Datasheet → |
| Diab Divinycell HT90 Aerospace Prepreg Cure PVC CoreDiab Group • Structural Sandwich Core | DIAB-HT90-12MM | 3.1 MPa 450 psi | 140 °C | 4.2 MPa | 90 kg/m³ | Non-Reg Non-Regulated Solid Polymer | $1,752 Crate of 10 Grooved & Perforated Sheets | Datasheet → |
| Divinycell® H80 Structural PVC FoamDiab Group • Structural Foam | DIAB-H80-34IN-GS | 2.5 MPa 362 psi | 80 °C | 3.6 MPa | 5 cPs | Non-Reg Non-Hazmat Standard Freight | $142 Sheet (48 x 96 in) | Datasheet → |
| Gurit Corecell M100 Dynamic Slamming SAN Foam CoreGurit • Structural Sandwich Core | GUR-CCM100-25MM | 3.9 MPa 566 psi | 98 °C | 5.4 MPa | 107 kg/m³ | Non-Reg Non-Regulated Solid Polymer | $1,430 Crate of 10 Grooved & Perforated Sheets | Datasheet → |
| Gurit Corecell M130 Heavy Offshore Hull SAN CoreGurit • Structural Sandwich Core | GUR-CCM130-25MM | 5.2 MPa 754 psi | 100 °C | 7.1 MPa | 140 kg/m³ | Non-Reg Non-Regulated Solid Polymer | $1,584 Crate of 10 Grooved & Perforated Sheets | Datasheet → |
| Gurit Corecell M60 Tough Marine SAN Structural FoamGurit • Structural Sandwich Core | GUR-CCM60-20MM | 2.1 MPa 305 psi | 95 °C | 2.9 MPa | 65 kg/m³ | Non-Reg Non-Regulated Solid Polymer | $1,320 Crate of 10 Grooved & Perforated Sheets | Datasheet → |
| Gurit Kerdyn Green 115 Recyclable Structural PET CoreGurit • Structural Sandwich Core | GUR-KER115-20MM | 2.9 MPa 421 psi | 108 °C | 3.6 MPa | 115 kg/m³ | Non-Reg Non-Regulated Solid Polymer | $922 Crate of 10 Grooved & Perforated Sheets | Datasheet → |
| Interplastic CoREZYN COR61-AA-255 Low-Shrink DCPD Laminating ResinInterplastic Corp • Isophthalic Polyester | IPC-COR61AA | 63 MPa 9,137 psi | 80 °C | 111 MPa | 420 cPs | UN1866 Class 3 Flammable Liquid | $1,395 225 kg Steel Drum | Datasheet → |
| Interplastic CoREZYN COR75-AQ-010 Lloyd's Marine Iso PolyesterInterplastic Corp • Isophthalic Polyester | IPC-COR75AQ | 74 MPa 10,733 psi | 94 °C | 122 MPa | 490 cPs | UN1866 Class 3 Flammable Liquid | $1,665 225 kg Steel Drum | Datasheet → |
| Interplastic CoREZYN CORVE8300 Novolac Vinyl EsterInterplastic Corp • Vinyl Ester | IPC-CORVE8300 | 80 MPa 11,603 psi | 144 °C | 142 MPa | 390 cPs | UN1866 Class 3 Flammable Liquid | $2,706 205 kg Drum | Datasheet → |
| Interplastic CoREZYN CORVE8740 Urethane-Modified VEInterplastic Corp • Vinyl Ester | IPC-CORVE8740 | 83 MPa 12,038 psi | 102 °C | 145 MPa | 310 cPs | UN1866 Class 3 Flammable Liquid | $2,276 205 kg Drum | Datasheet → |
| Interplastic CoREZYN VE8121 Infusion Marine Vinyl EsterInterplastic Corp • Vinyl Ester | IPC-VE8121-INF | 84 MPa 12,183 psi | 101 °C | 146 MPa | 165 cPs | UN1866 Class 3 Flammable Liquid | $2,091 205 kg Drum | Datasheet → |
| Lantor Soric XF 3mm Print-Blocker & Infusion Flow CoreLantor / Gurit • Structural Sandwich Core | LAN-SORIC-XF3 | 4.5 MPa 653 psi | 95 °C | 6.2 MPa | 160 kg/m³ | Non-Reg Non-Regulated Solid Polymer | $1,128 Crate of 10 Grooved & Perforated Sheets | Datasheet → |
Engineering Block 2 of 4 • Cross-Brand Substitution Intelligence
All Comparison Pairs (62)2. Drop-In Equivalence Matrix & Head-to-Head ASTM Comparisons
Category Cross-Brand Equivalence Rule
80–100 kg/m³ Marine Foam group: Diab Divinycell H80 / H100 ↔ Gurit Corecell M80 / M100 (SAN) ↔ 3A Composites Airex C70.75 / T92 PET. High-Compression Transom group: 3A Baltek SB.100 Balsa ↔ Coosa Bluewater 26.
Direct Head-to-Head Engineering Comparisons in Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa) (Click any pair for full Δ ASTM & Cure Analysis):
3A CompositesVSDiab Group
3A Composites Airex C70.75 Cross-Linked PVC Sandwich Core vs Divinycell® H80 Structural PVC Foam
Δ Tensile: +0.2 MPaΔ HDT: +8°C
3A CompositesVSGurit
3A Composites Airex C70.75 Cross-Linked PVC Sandwich Core vs Corecell™ M80 Marine SAN Foam Core
Δ Tensile: +0.3 MPaΔ HDT: -7°C
3A CompositesVSDiab Group
3A Composites Airex C70.75 Cross-Linked PVC Sandwich Core vs Diab Divinycell H100 Structural PVC Core
Δ Tensile: -0.8 MPaΔ HDT: -2°C
3A CompositesVSGurit
3A Composites Airex T92.100 Structural PET Foam Core vs Gurit Kerdyn Green 115 Recyclable Structural PET Core
Δ Tensile: -0.3 MPaΔ HDT: +27°C
3A CompositesVSDiab Group
3A Composites Airex T92.100 Structural PET Foam Core vs Diab Divinycell HT90 Aerospace Prepreg Cure PVC Core
Δ Tensile: -0.5 MPaΔ HDT: -5°C
3A CompositesVSCoosa Composites (Pelham, AL)
3A Composites Airex T92.100 Structural PET Foam Core vs Coosa Composites Bluewater 26 High-Density Urethane Transom Board
Δ Tensile: -12.2 MPaΔ HDT: +20°C
3A CompositesVSDiab Group
3A Composites Baltek SB.100 Structural End-Grain Balsa Core vs Divinycell® H80 Structural PVC Foam
Δ Tensile: +11 MPaΔ HDT: +80°C
3A CompositesVSGurit
3A Composites Baltek SB.100 Structural End-Grain Balsa Core vs Corecell™ M80 Marine SAN Foam Core
Δ Tensile: +11.1 MPaΔ HDT: +65°C
3A CompositesVS3A Composites
3A Composites Baltek SB.100 Structural End-Grain Balsa Core vs Baltek® SB.100 End-Grain Balsa
Δ Tensile: +0.4 MPaΔ HDT: +11.1°C
3A CompositesVS3A Composites
3A Composites Airex T92.100 Structural PET Foam Core vs Baltek® SB.100 End-Grain Balsa
Δ Tensile: -10.5 MPaΔ HDT: -13.9°C
3A CompositesVSDiab Group
Baltek® SB.100 End-Grain Balsa vs Diab Divinycell HT90 Aerospace Prepreg Cure PVC Core
Δ Tensile: +10 MPaΔ HDT: +8.9°C
Chomarat North AmericaVSVectorply Corp
Chomarat Rovicore 600/D3/600 Closed-Mold RTM Flow Glass vs Vectorply® E-BXM 1708 Biaxial E-Glass
Δ Tensile: -2562.6 MPaCompare →
Chomarat North AmericaVSOwens Corning
Chomarat Rovicore 600/D3/600 Closed-Mold RTM Flow Glass vs Owens Corning Knytex DBM 1708 Advantex E-CR Biaxial
Δ Tensile: -2060 MPaCompare →
Chomarat North AmericaVSInterplastic Corp
Chomarat Rovicore 600/D3/600 Closed-Mold RTM Flow Glass vs Interplastic CoREZYN COR61-AA-255 Low-Shrink DCPD Laminating Resin
Δ Tensile: +477 MPaCompare →
Coosa Composites (Pelham, AL)VSDiab Group
Coosa Composites Bluewater 26 High-Density Urethane Transom Board vs Divinycell® H80 Structural PVC Foam
Δ Tensile: +12.3 MPaΔ HDT: +35°C
Coosa Composites (Pelham, AL)VSGurit
Coosa Composites Bluewater 26 High-Density Urethane Transom Board vs Corecell™ M80 Marine SAN Foam Core
Δ Tensile: +12.4 MPaΔ HDT: +20°C
Coosa Composites (Pelham, AL)VSGurit
Coosa Composites Bluewater 26 High-Density Urethane Transom Board vs Gurit Kerdyn Green 115 Recyclable Structural PET Core
Δ Tensile: +11.9 MPaΔ HDT: +7°C
Diab GroupVSGurit
Divinycell® H80 Structural PVC Foam vs Corecell™ M80 Marine SAN Foam Core
Δ Tensile: +0.1 MPaΔ HDT: -15°C
Interplastic CorpVSAOC Resins
CoREZYN® CORVE8100 Infusion Resin vs Vipel® F010-SER Epoxy Novolac
Δ Tensile: -4.8 MPaΔ HDT: -35.6°C
Interplastic CorpVSINEOS Composites US
CoREZYN® CORVE8100 Infusion Resin vs INEOS Derakane Signia 411-350 Low-Odor Marine Vinyl Ester
Δ Tensile: -4.6 MPaΔ HDT: 0°C
Interplastic CorpVSInterplastic Corp
CoREZYN® CORVE8100 Infusion Resin vs Interplastic CoREZYN COR75-AQ-010 Lloyd's Marine Iso Polyester
Δ Tensile: +7.4 MPaΔ HDT: +11°C
Diab GroupVSGurit
Diab Divinycell H100 Structural PVC Core vs Gurit Corecell M100 Dynamic Slamming SAN Foam Core
Δ Tensile: -0.4 MPaΔ HDT: -8°C
Diab GroupVSLantor / Gurit
Diab Divinycell H100 Structural PVC Core vs Lantor Soric XF 3mm Print-Blocker & Infusion Flow Core
Δ Tensile: -1 MPaΔ HDT: -5°C
Diab GroupVSDiab Group
Diab Divinycell H130 High-Shear Slamming Zone PVC Core vs Divinycell® H80 Structural PVC Foam
Δ Tensile: +2.3 MPaΔ HDT: +12°C
Engineering Block 3 of 4 • Stoichiometry & US DOT 49 CFR § 177.848
DOT 49 CFR & TDG Compliance Policy3. Mandatory Companion Materials, Cure Ratios & Hazmat Segregation
Stoichiometric & Catalyst Cure Rule
CORE BEDDING & RESIN UPTAKE: Grid-scored (GS) or grooved/perforated (GP) sheets require ~0.55 kg/m² extra resin for kerf/groove filling or a dedicated structural core-bonding putty.
Required Companion Material Groups for Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa):
- Marine & Novolac Vinyl Ester Resins
- Structural Infusion & Laminating Epoxy Systems
- Structural Core-Bonding Putty & Syntactic Pastes
- E-Glass / Carbon Fiber Skin Reinforcements
US DOT 49 CFR § 177.848 & Transport Canada TDG Segregation
Category Profile: Non-Regulated Structural Core. Under federal hazmat regulations, Class 3 Flammable Liquids (UN1866 Resin) and Class 5.2 Organic Peroxides (UN3105 MEKP Initiator) must be packaged in separate UN-certified outer drums/boxes and segregated from Cobalt Octoate promoters to prevent exothermic thermal runaway.
Recommended Companion SKUs in Stock (Add to Kit BOM):
AOC Hydropel R037-YAA-35 Marine Tie-Coat Vinyl Ester
AOC Resins • Vinyl Ester
UN1866$2,132 (205 kg Drum)
AOC Vipel F010-INF Low-Viscosity Infusion Vinyl Ester
AOC Resins • Vinyl Ester
UN1866$2,153 (205 kg Drum)
AOC Vipel F085 Zero-Styrene Marine Resin
AOC Resins • Vinyl Ester
UN1866$1,520 (204 kg (55 Gal Drum))
AOC Vipel K022 Novolac High-Temp Vinyl Ester
AOC Resins • Vinyl Ester
UN1866$2,829 (205 kg Drum)
Ashland Hetron 922 Corrosion-Resistant Vinyl Ester
INEOS / Hetron US • Vinyl Ester
UN1866$2,255 (205 kg Drum)
Derakane™ 510A-40 Brominated Vinyl Ester
Ashland / INEOS • Fire-Retardant VE
UN1866$1,890 (55-Gal Drum (475 lbs))
Gurit Ampreg 31 DNV-GL Certified Laminating Epoxy
Gurit • Infusion Epoxy
UN3082$3,080 (200 kg Drum Kit)
Gurit Ampreg 36 High-Tg Aerospace & Marine Epoxy
Gurit • Infusion Epoxy
UN3082$3,560 (200 kg Drum Kit)
Engineering Block 4 of 4 • Manufacturing & End-Use Applications
4. Qualified Process Methods, Finished Parts & ASTM Standards
Qualified Molding & Layup Methods
- Vacuum Infusion (Grooved & Perforated / Grid-Scored)
- Vacuum Bag Core-Bonding
- Prepreg Sandwich Co-Curing
Finished Marine, Aerospace & Industrial Structures
- Offshore Catamaran Hull Bottoms & Slamming Zones
- Outboard Motor Transoms & Bulkheads
- Wind Turbine Blade Shear Webs & Nacelles
Governing ASTM / ISO Test Standards
- ASTM C273 (Shear Strength & Elongation 15–40%)
- ASTM D1621 (Compressive Strength 1.4–12.5 MPa)
- ASTM C297 (Flatwise Tensile Strength)
- ASTM D792 (Density 60–250 kg/m³)
Schema.org/FAQPage • Google AI Overviews & Perplexity Ready
Engineering FAQ: Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa) (ASTM & Cure Specification)
1. What are the ASTM mechanical (D638 Tensile) and thermal (D648 HDT) ranges for Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa)?▼
Across the 25 verified North American SKUs in Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa) (CAT-CORE-SW), ASTM D638 tensile strength spans 1.4–540 MPa and ASTM D648 heat deflection temperature (HDT) spans 80–160 °C. Primary reference standards include ASTM C273 (Shear Strength & Elongation 15–40%), ASTM D1621 (Compressive Strength 1.4–12.5 MPa), ASTM C297 (Flatwise Tensile Strength), ASTM D792 (Density 60–250 kg/m³).
2. What companion catalyst, hardener, or cure system is required for Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa)?▼
CORE BEDDING & RESIN UPTAKE: Grid-scored (GS) or grooved/perforated (GP) sheets require ~0.55 kg/m² extra resin for kerf/groove filling or a dedicated structural core-bonding putty. Required companion categories include: Marine & Novolac Vinyl Ester Resins; Structural Infusion & Laminating Epoxy Systems; Structural Core-Bonding Putty & Syntactic Pastes; E-Glass / Carbon Fiber Skin Reinforcements.
3. What are the approved cross-brand drop-in equivalents in Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa)?▼
80–100 kg/m³ Marine Foam group: Diab Divinycell H80 / H100 ↔ Gurit Corecell M80 / M100 (SAN) ↔ 3A Composites Airex C70.75 / T92 PET. High-Compression Transom group: 3A Baltek SB.100 Balsa ↔ Coosa Bluewater 26. Top stocked manufacturers in the US registry include 3A Composites, Chomarat North America, Coosa Composites (Pelham, AL), Gurit, Interplastic Corp, Diab Group, Lantor / Gurit.
4. What is the US DOT 49 CFR and Transport Canada TDG Hazmat shipping classification for Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa)?▼
Materials in Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa) are regulated under Non-Regulated Structural Core. When ordering Class 3 Flammable Liquid resins (UN1866) alongside Class 5.2 Organic Peroxide initiators (MEKP UN3105), shipments must comply with US DOT 49 CFR § 177.848 hazmat segregation and isolated packaging rules.
5. Which composite fabrication methods and finished structures use Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa)?▼
Structural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa) is qualified for Vacuum Infusion (Grooved & Perforated / Grid-Scored), Vacuum Bag Core-Bonding, Prepreg Sandwich Co-Curing. Typical finished B2B applications include Offshore Catamaran Hull Bottoms & Slamming Zones, Outboard Motor Transoms & Bulkheads, Wind Turbine Blade Shear Webs & Nacelles.
Explore All 9 CompositeMatrix™ Industrial Categories
Marine & Novolac Vinyl Ester ResinsCAT-RES-VEStructural Infusion & Laminating Epoxy SystemsCAT-RES-EPXIsophthalic & DCPD Marine Polyester ResinsCAT-RES-UPRMEKP Peroxide Initiators, Amine Hardeners & Cure PromotersCAT-CHEM-CATCarbon Fiber Fabrics (3K / 6K / 12K), Spread-Tow & PrepregsCAT-FAB-CFE-Glass / E-CR Stitched Multiaxials (1708 / 1808) & Kevlar HybridsCAT-FAB-GLSStructural Sandwich Cores (PVC, SAN, PET Foam & End-Grain Balsa)CAT-CORE-SWMarine ISO/NPG Gelcoats, Structural Bonding Pastes & Mold ReleasesCAT-GEL-ADHVacuum Infusion Films, Peel Ply, Flow Media, Breathers & Sealant TapesCAT-VAC-CON