Downloads (2)

Safety Datasheet (SDS)152 KB
Technical Datasheet (TDS)100 KB

Specification

Weight and Dimensions
Length500mm
Width500mm
Thickness100mm
Product Data
ColourWhite
Chemistry / MaterialPolyurethane
Density80g/cm³
Compressive Strength0.75MPa
Compatible With
Compatible WithEpoxyYes
Compatible WithPolyesterYes
Compatible WithVinylesterYes
Compatible WithPolyurethaneYes
Compatible WithRTV SiliconeYes
Mechanical Properties
Max Service Temp130°C
General Properties
Gross Weight2kg

Shipping Information

This product listed to by in a range of sizes. One or more larger sizes are classed as 'oversize' for delivery to some international destinations which means that delivery might not be available to some countries or when combined with certain types of product (dangerous goods for example).

When checking the delivery cost of your order, if you receive an 'oversize' warning then you may need to select a smaller size of this product in order to continue. Alternatively, please contact us to discuss.

PU80 Low Density Polyurethane Foam Model Board

PU80 is an 80kg/m³ polyurethane (PU) model board/foam that can be easily shaped by hand or CNC machined to produce composite models or patterns. For its low density, PU80 has a noticeably close cell structure, producing a smooth finish and finer detail compared to a conventional PU foam.

Available to buy online in 100mm (4") thickness in a range of block sizes from 500 x 500mm up to 2000 x 100mm.


PRODUCT VERSIONS

Sheet Size

AVAILABILITY:More than 10 availablefor immediate shipping


PRICE
£48.44inc. VAT
More than 10 availablefor immediate shipping
QTY
BLOCKS
BLOCKS
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Polyurethane model board in a very low density of just 80kg/m³ and 100mm thickness. This lightweight material is perfect for hand-worked design studies, program testing/proving (for CNC routers) and lightweight model building. Being a modelboard rather than a PU foam (although the two are very similar) means that this material has a much finer and smoother surface finish than a more granular PU foam would have.

At this low density the pu foam model board it is easily and quickly shaped by hand using conventional tools and can be rapidly machined using manual or CNC machine tools. However, this 'Low Density' block will not result in the same strength and surface finish as a higher density modelboard..

Typical Uses

  • Design studies
  • CNC program proving/testing.
  • Building Landscapes/Features in architectural and scenario models.

Advantages

  • Easy workability by hand
  • Much finer surface finish than a PU foam
  • Low weight
  • Cost effective
  • Large sheet sizes available
  • 100mm sheet thickness

How to Buy

This board is 100mm thick and available in a range of block sizes. Please select block size you require from the drop-down menu at the top of the page.

Further Information

How to Use

Shape the material using similar methods to working with MDF or wood, can be easily carved/sawn/drilled/routed/sanded, alternatively, machined using standard manual or CNC equipment.

Polyurethane model board in a very low density of just 80kg/m³ and 100mm thickness. This lightweight material is perfect for hand-worked design studies, program testing/proving (for CNC routers) and lightweight model building. Being a modelboard rather than a PU foam (although the two are very similar) means that this material has a much finer and smoother surface finish than a more granular PU foam would have.

At this low density the pu foam model board it is easily and quickly shaped by hand using conventional tools and can be rapidly machined using manual or CNC machine tools. However, this 'Low Density' block will not result in the same strength and surface finish as a higher density modelboard..

Typical Uses

  • Design studies
  • CNC program proving/testing.
  • Building Landscapes/Features in architectural and scenario models.

Advantages

  • Easy workability by hand
  • Much finer surface finish than a PU foam
  • Low weight
  • Cost effective
  • Large sheet sizes available
  • 100mm sheet thickness

How to Buy

This board is 100mm thick and available in a range of block sizes. Please select block size you require from the drop-down menu at the top of the page.

Further Information

How to Use

Shape the material using similar methods to working with MDF or wood, can be easily carved/sawn/drilled/routed/sanded, alternatively, machined using standard manual or CNC equipment.

Downloads (2)

Safety Datasheet (SDS)152 KB
Technical Datasheet (TDS)100 KB

Specification

Weight and Dimensions
Length500mm
Width500mm
Thickness100mm
Product Data
ColourWhite
Chemistry / MaterialPolyurethane
Density80g/cm³
Compressive Strength0.75MPa
Compatible With
Compatible WithEpoxyYes
Compatible WithPolyesterYes
Compatible WithVinylesterYes
Compatible WithPolyurethaneYes
Compatible WithRTV SiliconeYes
Mechanical Properties
Max Service Temp130°C
General Properties
Gross Weight2kg
Can’t find the answer you’re looking for?Ask our technical team a question.

It's completely rigid. If it is 'hit' it will dent and stay dented. The way to think of this type of foam that helps people the most is that it's similar to (albeit higher density and therefore stronger) Oasis - the type of foam used for dried flower arranging. Therefore, although it would absorb impact from a shock, it would deform and stay deformed.

Our Pattern Coat Primer product is excellent for sealing foam and lower density modelboards. On lower density foams you might also choose to use a scrim of glass cloth to add some more strength to your pattern first. When using the Pattern Coat Primer, a typical thickness would be around 0.5mm.

No, it's expanded polystyrene foam (like styrofoam/blue foam) that you can cut with a hot-wire cutter. To cut PU foam you will need a blade of some description.

Polyurethane is a highly chemically inert material meaning that the vast majority of solvents and household chemicals will not dissolve the PU foam at all.

We are not aware of any easily available solvents or relatively safe to use chemicals that will dissolve the PU foam. If you did need a foam that is more readily dissolved then expanded polystyrene (EPS) such as Styrofoam might make a better choice.

Although perfectly possible to cut the Low Density Foam by water jet, it is more common to use other more simple manual methods. But for more precise applications, the foam works well with all CNC cutting and routing operations where the foam can be easily machined to a shape or pattern

The sheets are 100mm thick.

We would generally not recommend relying on flexing the board to release a cut shape. Although low density, the PU80 Tooling Board is still a rigid board with only a small amount of flex to it.

Unfortunately you cannot use this board with any epoxy based pre-pregs. This is because, during an elevated temperature cure, polyurethane based boards inhibit the cure of the epoxy resins and thus the pre-preg mould will never cure.

You'll see on the datasheet that we list a temperature range of -80 to 130'C although if you combine high temperature with high pressure then you would reduce this operating temperature range further and so I would say that 7 bar and 140'C would NOT be a suitable environment for the foam.



I should also point out if you're considering using this foam as a structural core in a prepreg laminate or as a pattern to take prepreg mould off that at elevated temperature polyurethane will severely inhibit the cure of epoxy-matrix prepregs and so you would need to make sure that the epoxy prepreg is not in direct contact with the polyurethane.

This model board can be very easily cut and shaped by CNC.



We would not recommend using a laser to cut modleboard due to the thickness of the board.

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Shipping Information

This product listed to by in a range of sizes. One or more larger sizes are classed as 'oversize' for delivery to some international destinations which means that delivery might not be available to some countries or when combined with certain types of product (dangerous goods for example).

When checking the delivery cost of your order, if you receive an 'oversize' warning then you may need to select a smaller size of this product in order to continue. Alternatively, please contact us to discuss.

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