Overview
The Wedge cement XPS sandwich panel is a symmetrical five-layer board: a waterproof calcium silicate cement mortar over alkali-resistant fibreglass mesh on both faces of a closed-cell Wedge CCXP extruded polystyrene core, factory-bonded so the facing cannot delaminate. It is supplied in the thicker 25–100 mm range on the higher-density CCXP 45, 60 and 70 cores for structural-grade insulation duty.
Fixed to cold-formed steel studs, a 30–50 mm panel provides insulation, rigid sheathing and a render or tile face in one operation — cutting prefab panel weight and factory assembly time. On masonry it is a cavity-wall or façade insulation layer that accepts render or adhesive-fixed cladding directly. Under a screed or cold-store wearing slab the CCXP 60/70 core carries the floor load.
The panel is the same product family as the CSC XPS 250 calcium silicate XPS sandwich panel; this page covers the wall, floor and prefab specification. For roofs see the XPS roof insulation board, and for bathrooms and kitchens the thinner tile backer board.
Download the CSC XPS Boards catalogue (PDF)
Full 2026 technical catalogue — five-layer construction, declared values, CCXP core grade selector, floor, roof and wall build-ups, sizes, packing, installation guide and export data. 13 pages, 7 MB.
Cement XPS Sandwich Panel specifications
Typical production values for cement coated XPS sandwich panels on CCXP 45–70 cores. Values are determined by the test methods listed and are not a specification — request a Material Test Certificate for the batch supplied where a value must be guaranteed.
| Property | Value | Test standard / note |
|---|---|---|
| Construction | Calcium silicate cement mortar + AR fibreglass mesh, both faces, on closed-cell XPS core | — |
| Thermal conductivity, λ (composite) | 0.030 W/m·K | EN 12667:2001 |
| Thermal conductivity, core at 10 °C | 0.028 W/m·K | ASTM C518 |
| Thermal resistance RD, core | 0.88 m²·K/W (25 mm); 1.47 (50 mm); 2.06 (75 mm); 2.94 (100 mm) | ASTM C177 / C518 |
| Composite panel density | 200–300 kg/m³ | DIN 53420 |
| Core density | 40 / 45 / 48 kg/m³ (CCXP 45 / 60 / 70) | ASTM D1622 |
| Compressive strength at 10 % | 450 / 600 / 700 kPa (CCXP 45 / 60 / 70) | ASTM D1621 / EN 826 |
| Flexural strength, composite | 2.05 ± 0.02 MPa | ASTM C203 |
| Bending stiffness, E (30 mm) | 1285 kN·mm² | EN 12089 |
| Water absorption, long-term immersion | ≤ 0.7 % by volume | ASTM C578 / EN 12087 |
| Water vapour permeability, Sd | 3.2 m | DIN EN 12086 |
| Water vapour permeance, core at 25 mm | < 70 / < 65 / < 60 ng/Pa·s·m² (CCXP 45 / 60 / 70) | ASTM E96 |
| Dimensional stability, core | 1 % | ASTM D2126 |
| Reaction to fire, composite | Class E | EN 13501-1 |
| Limiting oxygen index, core | 24 % | ASTM D2863 |
| Resistance to body impact | 3 × 120 N/m | ETAG 003 |
| Surface strength of coating | ≥ 1 MPa; render and tile adhesive bond 0.3 N/mm² | BS EN 1348 |
| Coefficient of linear expansion | 30 × 10⁻⁶ K⁻¹ | — |
| Service temperature | −30 °C to +80 °C | — |
| Thickness | 25, 30, 50, 75, 100 mm | ±1.0 mm (≤30 mm); ±1.5 mm (>30 mm) |
| Panel size | 2440 × 1220 mm; 2500 × 600 mm; cut-to-size up to 3000 × 1200 mm | ±3 mm |
| Nominal weight | 6.3 kg/m² (25 mm); 7.5 (30 mm); 12.5 (50 mm); 18.8 (75 mm); 25.0 (100 mm) | — |
XPS core grade selector
The core grade sets the compressive strength of the finished board; choose it from the load the floor, roof or wall will carry.
| Property | Value | Test standard / note |
|---|---|---|
| CCXP 45 — 40 kg/m³, 450 kPa | Prefab / LGSF wall panels, façade insulation, floors under screed | ASTM D1622 / D1621 |
| CCXP 60 — 45 kg/m³, 600 kPa | Cold-store floors and walls, inverted roofs | ASTM D1622 / D1621 |
| CCXP 70 — 48 kg/m³, 700 kPa | Heavy-load floors, racking and forklift areas, trafficked roofs | ASTM D1622 / D1621 |
Cement XPS Sandwich Panel price
Cement XPS sandwich panels are priced per m² by thickness and core grade, with cut-to-size panels for prefab lines quoted per project. Pricing is on application — send the panel schedule or the wall, floor and cold-store areas with the thermal target and load case, and Wedge Industries Limited returns a board and ancillary schedule with a firm price in ₹ INR and $ USD.
Minimum order is one pallet within India and one 20′ GP container for export: indicatively 860 m² at 30 mm, 520 m² at 50 mm or 260 m² at 100 mm per 20′ GP; 2,000 / 1,200 / 600 m² in a 40′ HQ. Board weight does not limit loading.
Applications
- Prefab, LGSF and modular housing — 30–50 mm panel screw-fixed to cold-formed steel studs as insulation, sheathing and render or tile substrate in one; also site-office cabins, bathroom pods and portable buildings.
- External façade and cavity-wall insulation — 25–50 mm on masonry under polymer-modified render or adhesive-fixed cladding; also as the insulated backing board in ventilated façade systems.
- Cold storage — 50–100 mm CCXP 60/70 floors under the wearing slab and 50 mm wall linings in chilled and frozen rooms; Sd 3.2 m and ≤0.7 % absorption keep the insulation dry on the warm side.
- Floors under screed — 25–50 mm insulation board in residential, hotel and healthcare projects; CCXP 70 with a ≥65 mm load-distributing screed for racking, machinery and forklift traffic.
- Cold-room and partition walls in lightweight construction; internal wall insulation in masonry buildings.
- Export projects — Gulf villa and labour-camp prefab programmes, African and South Asian housing schemes; mixed-thickness containers shipped EXW, FOB, CIF or DAP.
Typical build-up — LGSF external wall panel
| Property | Value | Test standard / note |
|---|---|---|
| 1. Finish render or adhesive-fixed cladding | Polymer-modified base coat with embedded AR mesh over full face and joints | — |
| 2. Wedge cement XPS sandwich panel, 30–50 mm | Screws + 35 mm washers at 300 mm c/c into studs; joints taped | Insulation, sheathing and render face |
| 3. Cold-formed steel studs | Cavity for services; optional mineral wool infill for acoustic or fire performance | — |
| 4. Internal lining | Gypsum, MgO or fibre cement board | — |
| Movement joints | At not more than 6 m centres and at all structural movement joints | — |
Installation
- Stud / LGSF — fix through the panel into cold-formed steel or timber studs with corrosion-resistant screws and 35 mm washers at 300 mm centres; stagger panel joints; tape every joint with 100 mm alkali-resistant mesh bedded in adhesive.
- Masonry — fix with adhesive dabs plus five anchors per m², or a full adhesive bed where the wall is flat to 3 mm in 2 m.
- Render or cladding — apply a polymer-modified base-coat render with embedded alkali-resistant mesh over the full face and joints before the finishing render or cladding adhesive; provide movement joints at not more than 6 m centres and at all structural movement joints.
- Floors and cold stores — lay boards tightly butted in a staggered bond on a flat slab or membrane; for point loads above 300 kPa use the CCXP 60 or 70 core and a load-distributing screed of not less than 65 mm.
- Cut with a trimming knife against a straight edge, scoring both faces — no power tools or dust extraction. Do not use solvent-based adhesives or primers on the core; do not leave panels exposed to sunlight for more than seven days before covering.
Sizes, thickness and packing
Standard panels 2440 × 1220 mm (2.98 m²) and 2500 × 600 mm (1.50 m²) in 25, 30, 50, 75 and 100 mm; project cut-to-size up to 3000 × 1200 mm for prefab and modular panel lines. Square edge standard; shiplap and tongue-and-groove on core boards on request. Thicknesses above 100 mm are supplied as two factory-bonded layers.
Product code: CSC-60-50-2440 = calcium silicate cement facing, CCXP 60 core, 50 mm, 2440 mm length. Panels are stacked flat on fumigated (ISPM 15) pallets to 1.2 m with corner protectors and stretch film; each pallet labelled with product code, batch, quantity and date; MTC per batch on request.
Why buy from Wedge Industries Limited
- Manufactured in Faridabad, India, with group sourcing from the United Kingdom, Spain and China; exported to 45+ countries across the Gulf, Europe, South and South East Asia, Africa and North America.
- Every figure published here is a tested value to the standard stated, not an estimate. A Material Test Certificate (MTC) is issued per batch on request, and a TDS, MSDS and Application Guide are available for every grade.
- Standard formats ship from stock; project quantities and cut-to-size boards are produced to order with a typical lead time of three to four weeks ex-works.
- Minimum order: one pallet for domestic supply; one 20′ GP container for export (indicatively 1,300 m² at 20 mm or 520 m² at 50 mm). Mixed-thickness containers accepted.
- Incoterms offered: EXW, FOB, CIF and DAP. HS code 3921.11 (indicative). Export documentation and compliance support through group company ZJELL Limited.
- Ancillaries supplied with the boards: 100 mm alkali-resistant joint tape, corrosion-resistant screws and 35 mm washers, masonry anchors, flexible C2 S1 tile adhesive, polymer-modified base-coat render and sealant.
Frequently asked questions
What is a cement XPS sandwich panel?
It is an extruded polystyrene insulation core with a cement mortar facing bonded over fibreglass mesh on both sides, forming a rigid sandwich. Wedge panels use a calcium silicate cement facing on a CCXP 45 to 70 core, giving insulation, rigid sheathing and a render- or tile-ready surface in one 25 to 100 mm board.
Can the panel be used as sheathing on LGSF prefab walls?
Yes. A 30 to 50 mm panel screw-fixed to cold-formed steel studs at 300 mm centres provides insulation, rigid sheathing and the substrate for render or tiles in one operation. A polymer-modified base coat with embedded alkali-resistant mesh is applied over the face and joints before the finish.
Which thickness do I need for a wall or cold store?
Typical selections are 25 to 50 mm for external façade and cavity-wall insulation, 30 to 50 mm for prefab and LGSF panels, and 50 to 100 mm for cold-store floors and walls. Declared R-value of the core is 0.88 m²·K/W at 25 mm, 1.47 at 50 mm and 2.94 at 100 mm; Wedge provides U-value calculations for the complete build-up.
What load can a cement XPS panel carry on a floor?
Compressive strength at 10 % deflection is 450 kPa on a CCXP 45 core, 600 kPa on CCXP 60 and 700 kPa on CCXP 70. For point loads above 300 kPa such as racking, machinery or forklift traffic, specify CCXP 60 or 70 with a load-distributing screed of at least 65 mm.
Is the panel fire rated?
The composite board is classified Class E to EN 13501-1 and the cement facing protects the core; additional fire-retardant additives are available on request. The fire resistance of a complete wall assembly depends on the full build-up and must be assessed against the applicable building code.
What are the export terms?
Minimum export order is one 20-foot container with mixed thicknesses and grades accepted, shipped EXW, FOB, CIF or DAP with invoice, packing list, certificate of origin, MTC and fumigation certificate. The indicative HS code is 3921.11. Wedge ships to 45 countries across the Gulf, Europe, Africa, South and South East Asia and North America.
Need the full data sheet set? Download the CSC XPS Boards catalogue (PDF) or request the TDS, MSDS and Application Guide with your enquiry.
Related products
- Calcium Silicate XPS Sandwich Panel (CSC XPS 250)
- XPS Roof Insulation Board — cement coated
- Tile Backer Board — waterproof XPS
- Polymer Cement Coated XPS Board (MXPS)
- Spray Foam Insulation
- All insulation products
Request a quotation for Cement XPS Sandwich Panel
Send the floor, roof or wall area, required thickness or U-value, load case and delivery location. Wedge Industries Limited returns a grade and thickness recommendation, a board and ancillary schedule and a firm price in INR and USD.
