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Extruded polystyrene · 150–700 kPa

XPS Foam Insulation Board

XPS (extruded polystyrene) foam board has a thermal conductivity of about 0.028–0.030 W/(m·K), roughly R-5 per inch, compressive strength of 150–700 kPa and water absorption under 1% by volume, which makes it the standard insulation under freezer room floors.

λ ≤ 0.030 W/(m·K) · R-5 per inch

XPS Foam Boardλ ≤ 0.030 W/(m·K) · R-5 per inch
≈ R-5/ inchthermal resistance
700kPahighest compressive grade
≤ 1%water absorption by volume
20–100mmthickness range

Specifications

Typical models.

Closed-cell extruded polystyrene boards for freezer floors, foundations, inverted roofs and walls. High compressive strength and very low water uptake, in blue, pink or custom colours. Values are typical; we configure voltage, size or capacity and confirm data on the quotation.

XPS Foam Board: typical models and specifications
GradeCompressive strengthThicknessThermal conductivity λEdgeBoard size
XPS 150≥ 150 kPa20–100 mm≤ 0.030 W/(m·K)Straight or shiplap1200 × 600 mm
XPS 250≥ 250 kPa30–100 mm≤ 0.030 W/(m·K)Shiplap1200 × 600 / 2440 × 600 mm
XPS 350≥ 350 kPa40–100 mm≤ 0.029 W/(m·K)Shiplap or tongue & groove1200 × 600 mm
XPS 500–700500–700 kPa50–100 mm≤ 0.029 W/(m·K)Shiplap1200 × 600 mm

≈ approximate, measured at standard test conditions.

Features

Built for daily commercial use.

Built for load

Grades from 150 to 700 kPa carry floor slabs, forklift traffic and parking decks.

Moisture resistant

The closed-cell structure keeps water absorption below 1% by volume, so insulation value holds in wet ground.

Freezer floors

Standard insulation layer under freezer room slabs, combined with a vapour barrier and heating mat.

Colour and print

Blue, pink, yellow or your colour, with your brand printed on the board.

Applications

Where it works.

  • Freezer and cold room floors
  • Foundations and basement walls
  • Inverted and green roofs
  • Under-slab insulation
  • Cavity walls
  • Road and rail frost protection

FAQ

Questions buyers ask.

Something else? Ask us directly

What is XPS insulation?
XPS is extruded polystyrene: polystyrene melted and extruded into a continuous closed-cell board. It differs from EPS, which is made of expanded beads moulded together.
XPS or EPS under a slab?
XPS absorbs less water and carries more load at the same thickness, so it is the usual choice under freezer floors and foundations. EPS is cheaper per R-value where moisture and load are low.
What R-value is 2-inch XPS?
About R-10, from roughly R-5 per inch.
Why is XPS blue or pink?
Colour is only a brand marker. Performance comes from the density and cell structure, and we can produce any colour.

Request a quote

Get a price for
xps board.

Phone / WhatsApp+86 159 3316 2577
OfficeUnit 000612, F21 Youth World, next to Oriental Plaza, No. 109 Fazhan Avenue, Dongcheng Experimental Zone, Yiling District, Yichang, Hubei, China

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