Downloads (2)

Safety DataSheet (SDS)99 KB
Technical DataSheet (TDS)102 KB

Specification

Weight and Dimensions
Length300mm
Thickness100mm
Width300mm
Product Data
ColourGrey
Density33kg/m³
Mechanical Properties
Max Service Temp75°C
Tensile Strength0.6MPa
Compressive Strength0.3MPa
Sheer Strength250kPa
Elastic Modulus20MPa
Tensile Modulus22MPa
Sheer Modulus8mPa
Thermal Conductivity0.033W/m °K
Coefficient Linear Expansion0.0710-6/K
General Properties
Gross Weight0.297kg
BrandRavago

Shipping Information

Restrictions

This product is not classed as dangerous goods for transport and can be shipped to all destinations without restriction.

Package Size

The packaged size of this product exceeds 1.2m in length and so an additional handling surcharge (charged by the courier) will be included in the quoted shipping rate.

Delivery Cost

To find the delivery cost of this item to your address, add it to your basket and then use the instant shipping calculator on the basket page.

XPS Extruded Polystyrene Foam (Styrofoam) 100mm

Also known as Styrofoam, this lightweight extruded polystyrene foam has a density of 33kg/m³. It can be cut by hot wire and used as a core material in lightweight applications like UAV or model aircraft wings, as well as a low cost (and solvent dissolvable) core for pattern making, and for general modelmaking and craft applications.

The foam is 100mm thick and available to buy online in 1200 x 1200mm, 1200 x 600mm, 600 x 600mm and 300 x 300mm sheets.


PRODUCT VERSIONS

Sheet Size

AVAILABILITY:6 in stock available for immediate shipping


PRICE
€9.00ex. VAT
6 in stock available for immediate shipping
QTY
BLOCKS
BLOCKS

Trade discounts

0-45+
€9.00€7.00
We won’t be beaten on price!

If you believe you’re buying an equivalent product cheaper elsewhere, contact us to discuss your requirements.

Extruded polystyrene foam is a rigid foam with a very low 33kg/m³ density that can be used as a structural core in lightweight constructions, as a dissolvable/sacrificial former or core, and for general modelmaking and craft applications.

Extruded polystyrene foam cuts extremely well by hot-wire, making it the foam of choice where hot-wire cutting is the preferred way of profiling the foam, such as RC aeroplane wings. It is also dissolvable by solvents such as styrene and acetone which can be used as a means of dissolving and extracting the foam where it has been used as a temporary former or sacrificial core for projects like fuel tanks.

The foam listed on this page was formerly known as Dow Styrofoam but has recently been renamed to Ravatherm XPS X H LB but only the name has changed; this is the same product, and same performance as the original genuine Dow Styrofoam.

Advantages

Very low density - At 33kg/m³, this extruded polystyrene foam is one of the lowest density core materials available (together with our 30kg/m3 Rohacell)

Perfect for hot-wire cutting - Polystyrene foams, including extruded polystyrene, are one of the only foams suitable for hot-wire cutting, and can be quickly and accurately cut using this method (by hand or CNC).

Can be dissolved by solvents - Polystyrene foam, including extruded polystyrene, can be easily dissolved by solvents such as acetone, MEK and styrene. This allows polystyrene to be used as a sacrificial core, laminated over (using a resin such as epoxy) and then dissolved and removed to make a hollow structure, such as a fuel tank.

Considerations

Lower compressive strength - Although the foam offers a very low density and the advantage of easy cutting by hot-wire, it does have a lower compressive strength, relative to its density, compared to foams more often used as structural cores, such as closed cell PVC foam, PMI foam (i.e. Rohacell) and PET foam (i.e. 3DCore).

Dissolves in contact with some resins - Polystyrene foam will dissolve immediately in contact with solvents such as acetone or styrene and therefore this type of foam cannot be used where solvent-borne resins, such as polyester and vinylester, will come into direct contact with it. Epoxy resin does not contain solvents and will not attack polystyrene foam.

Does not shape well by hand - Unlike polyurethane foam, which cuts and shapes extremely easily, extruded polystyrene is less easy to shape by hand and so is less suitable for pattern making than PU foams.

Suitable Uses

Extruded polystyrene has a number of physical properties which make it suitable for a wide range of different applications. As well as its use in composites as a core material, or low cost/dissolvable pattern making foam, it can also be used for general craft applications, thermal insulation, model making, buoyancy and many more.

  • Low density core material in composite structures (such as wings)
  • Low-cost pattern making foam (beware of solvent-borne resins) Dissolvable ‘sacrificial core’ or former
  • General model making
  • Craft applications / school projects
  • Thermal insulation (especially in insulated panels)

How to Buy

Thickness

The foam sheets are 100mm thick.

Sheet Size

The foam is available to buy in sheets of 1200 x 1200mm, 1200 x 600mm, 600 x 600mm and 300 x 300mm. Please choose the size you require from the product options near the top of the page.

Sheet sizes are nominal (+/- 5mm) and due to the delicate nature of the foam, some minor surface defects may have occurred during storage and transport.

Trade discounts

0-45+
€9.00€7.00
We won’t be beaten on price!

If you believe you’re buying an equivalent product cheaper elsewhere, contact us to discuss your requirements.

PRODUCT VIDEOS(1)

Extruded polystyrene foam is a rigid foam with a very low 33kg/m³ density that can be used as a structural core in lightweight constructions, as a dissolvable/sacrificial former or core, and for general modelmaking and craft applications.

Extruded polystyrene foam cuts extremely well by hot-wire, making it the foam of choice where hot-wire cutting is the preferred way of profiling the foam, such as RC aeroplane wings. It is also dissolvable by solvents such as styrene and acetone which can be used as a means of dissolving and extracting the foam where it has been used as a temporary former or sacrificial core for projects like fuel tanks.

The foam listed on this page was formerly known as Dow Styrofoam but has recently been renamed to Ravatherm XPS X H LB but only the name has changed; this is the same product, and same performance as the original genuine Dow Styrofoam.

Advantages

Very low density - At 33kg/m³, this extruded polystyrene foam is one of the lowest density core materials available (together with our 30kg/m3 Rohacell)

Perfect for hot-wire cutting - Polystyrene foams, including extruded polystyrene, are one of the only foams suitable for hot-wire cutting, and can be quickly and accurately cut using this method (by hand or CNC).

Can be dissolved by solvents - Polystyrene foam, including extruded polystyrene, can be easily dissolved by solvents such as acetone, MEK and styrene. This allows polystyrene to be used as a sacrificial core, laminated over (using a resin such as epoxy) and then dissolved and removed to make a hollow structure, such as a fuel tank.

Considerations

Lower compressive strength - Although the foam offers a very low density and the advantage of easy cutting by hot-wire, it does have a lower compressive strength, relative to its density, compared to foams more often used as structural cores, such as closed cell PVC foam, PMI foam (i.e. Rohacell) and PET foam (i.e. 3DCore).

Dissolves in contact with some resins - Polystyrene foam will dissolve immediately in contact with solvents such as acetone or styrene and therefore this type of foam cannot be used where solvent-borne resins, such as polyester and vinylester, will come into direct contact with it. Epoxy resin does not contain solvents and will not attack polystyrene foam.

Does not shape well by hand - Unlike polyurethane foam, which cuts and shapes extremely easily, extruded polystyrene is less easy to shape by hand and so is less suitable for pattern making than PU foams.

Suitable Uses

Extruded polystyrene has a number of physical properties which make it suitable for a wide range of different applications. As well as its use in composites as a core material, or low cost/dissolvable pattern making foam, it can also be used for general craft applications, thermal insulation, model making, buoyancy and many more.

  • Low density core material in composite structures (such as wings)
  • Low-cost pattern making foam (beware of solvent-borne resins) Dissolvable ‘sacrificial core’ or former
  • General model making
  • Craft applications / school projects
  • Thermal insulation (especially in insulated panels)

How to Buy

Thickness

The foam sheets are 100mm thick.

Sheet Size

The foam is available to buy in sheets of 1200 x 1200mm, 1200 x 600mm, 600 x 600mm and 300 x 300mm. Please choose the size you require from the product options near the top of the page.

Sheet sizes are nominal (+/- 5mm) and due to the delicate nature of the foam, some minor surface defects may have occurred during storage and transport.

Downloads (2)

Safety DataSheet (SDS)99 KB
Technical DataSheet (TDS)102 KB

Specification

Weight and Dimensions
Length300mm
Thickness100mm
Width300mm
Product Data
ColourGrey
Density33kg/m³
Mechanical Properties
Max Service Temp75°C
Tensile Strength0.6MPa
Compressive Strength0.3MPa
Sheer Strength250kPa
Elastic Modulus20MPa
Tensile Modulus22MPa
Sheer Modulus8mPa
Thermal Conductivity0.033W/m °K
Coefficient Linear Expansion0.0710-6/K
General Properties
Gross Weight0.297kg
BrandRavago
Can’t find the answer you’re looking for?Ask our technical team a question.

Yes the XPS can be used under full vacuum, however due to its lower compressive strength compared to more traditional core materials, the mechanical properties of the finished component may not be as good. 
 

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Shipping Information

Restrictions

This product is not classed as dangerous goods for transport and can be shipped to all destinations without restriction.

Package Size

The packaged size of this product exceeds 1.2m in length and so an additional handling surcharge (charged by the courier) will be included in the quoted shipping rate.

Delivery Cost

To find the delivery cost of this item to your address, add it to your basket and then use the instant shipping calculator on the basket page.

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