FAQs
What is your PVC foam core thickness and thickness tolerance?
Our PVC foam core regular thickness is from 1mm~70mm, and we also support customized thickness. Thickness tolerance is ±0.2mm.
Which surface treatment do you have of PVC foam core?
Plain board; Punched board;
One side or two sides grooved board;
One side or two sides grooved and punched board;
Scrim board; Scrim and punched board;
Hyperbolic board; Hyperbolic punching plate...
We could also support customized surface treatment.
How about your delivery time?
We provide fast delivery: small orders: 5-7 days; full container: 15-20 days.
How about your MOQ and samples?
No MOQ, we could provide A4 free samples.
Do you have other relevant materials?
Yes, we have all materials for infusion and autoclave process. Like peel ply, vacuum bagging film, flow mesh, infusion tube, spiral tube, sealant tape, vacuum hose, vacuum connector and many others.
What is the standard density range of PVC foam core P250?
PVC foam core P250 has a nominal density of 250 kg/m³, with industry tolerance controlled within 225–285 kg/m³. Each batch is tested and certified to meet this range. Batch-specific density test reports are available upon request.
What are the main industries and products where PVC foam core P250 is used?
PVC foam core P250 is used as a structural core in marine sandwich construction (hulls, decks, bulkheads), wind power components (blades, nacelle covers), railway carriages (floors, sidewalls), new energy equipment (battery enclosures), industrial molds, and fire-resistant partitions. Its high density (250 kg/m³), strong mechanical properties (6.2 MPa compression, 4.5 MPa shear), DNV/CCS certifications, and excellent resin adhesion make it ideal for heavy-load, high-durability composite structures.
What are the tensile properties of PVC foam core P250?
PVC foam core P250 has a tensile strength of 9.2 MPa and a tensile modulus of 320 MPa, both the highest in the Union PVC foam core series. These high values ensure that PVC foam core P250 maintains excellent core integrity, resists delamination, and transfers loads effectively between face sheets. It is ideal for sandwich panels under repeated bending or vibration, such as wind turbine blades, bridge decks, and rail car floors.
What is the compressive strength of Strucell P250?
PVC foam core P250 delivers a compressive strength of 6.2 MPa (ASTM D1621).. This performance makes PVC foam core P250 ideal for heavy-load applications such as wind turbine blades, rail car floors, ship decks, and refrigerated truck flooring carrying dense cargo.
How does PVC foam core P250 perform in shear?
PVC foam core P250 delivers a shear strength of 4.5 MPa (ASTM C273). Shear strength is critical because sandwich panels often fail first in shear when subjected to bending or twisting forces. This high value provides excellent resistance to lateral sliding forces, making PVC foam core P250 ideal for dynamic applications like truck floors during cornering or marine hulls.
Is PVC foam core P250 flame retardant, and what fire safety standards does it meet?
PVC foam core P250 is self-extinguishing with natural flame retardancy from PVC’s chlorine content. It complies with UL94 V-0/V-1, FMVSS 302 and DIN 5510-2. Properly faced, it also meets IMO A.653(16) for marine use. Fire performance varies by panel structure and thickness, please refer to official test reports.
Does PVC foam core P250 have marine industry certifications?
Yes, PVC foam core P250 holds DNV/GL (Det Norske Veritas/Germanischer Lloyd) and ABS (American Bureau of Shipping) type approval certificates. These certifications confirm that PVC foam core P250 meets stringent international standards for shipbuilding and offshore applications, including requirements for mechanical properties, fire resistance, and low water absorption.
What processing methods are compatible with PVC foam core P250?
PVC foam core P250 supports vacuum infusion, hand lay-up, vacuum bagging, prepreg lamination, and low-temperature autoclave curing. The maximum short-term curing temperature is 120°C for less than 0.5 hours. For long-term service, the temperature range is -200°C to +70°C. Always condition the material at room temperature for 48 hours before processing.
What formats can PVC foam core P250 be supplied in?
PVC foam core P250 can be supplied as flat panels (3-70mm thick, up to 1150x2450mm), contoured boards, slotted boards (groove spacing 20-30mm), perforated boards (holes 2-3mm), slotted+perforated combination, and double-curved sheets for complex shapes. Glass fiber scrim can be bonded to one side for improved handling.
What is the maximum service temperature for PVC foam core P250?
PVC foam core P250 has a long-term service temperature range of -200°C to +80°C. For short-term exposure during processing (e.g., adhesive curing), it can withstand up to 120°C for less than 0.5 hours. Beyond these limits, the foam may soften, lose mechanical properties, or permanently deform. For sustained high-temperature applications, alternative cores should be considered.
Can PVC foam core P250 be used in marine and saltwater environments?
PVC foam core P250 features closed-cell structure with water absorption below 0.5%, ideal for marine use. It avoids osmotic blistering, resists saltwater corrosion, fungi and algae. Edge sealing is required for underwater parts; no sealing needed for above-water components.
What thicknesses are available for PVC foam core P250, and can custom sizes be ordered?
PVC foam core P250 is equipped with standard thickness: 5–50 mm and sizes 1220×2440 mm / 1250×2500 mm. Custom thickness available with MOQ and lead time required. Thickness tolerance: ±0.5 mm (≤25 mm), ±1.0 mm (>25 mm).
Is PVC foam core P250 resistant to chemicals?
Yes, PVC foam core P250 resists many chemicals including oils, fuels, diluted acids, and alkalis. It also resists fungal and algal growth, making it suitable for marine and outdoor environments. However, avoid exposure to strong oxidizing acids, concentrated nitric acid, and aromatic hydrocarbons like benzene and toluene which can attack the foam structure.
What is the shelf life of PVC foam core P250 and how should it be stored?
PVC foam core P250 has a shelf life of one year from the production date. Store in original packaging indoors on a flat surface (pallet or larger), avoid direct sunlight, and keep transport temperature below 45°C. If stored outdoors for more than 24 hours, cover with plastic film to prevent contamination. Always condition material at room temperature for 48 hours before processing.
Can I get a sample of PVC foam core P250 for testing?
Yes, PVC foam core P250 provides free A4 size samples (210 x 297 mm) in common thicknesses such as 10mm, 15mm, 20mm, and 25mm. Custom samples are available at nominal material cost. Technical support includes mechanical property test reports, adhesive recommendations, and guidance on machining and bonding tests. Lead time for standard samples is 3-5 business days.
