Mold mfg materials

Owned by Maciek Pajak (Deactivated)
Last updated: Jan 27, 2021
3 min read

The company POLYMÈRES TECHNOLOGIES is based in Quebec and has many different foams available that may fit our uses, including the foam directly below this and they also offer very quick delivery if we need and possibly cheaper shipping as well since it is in Canada?

LAST-A-FOAM® FR-7100 SERIES

  • Comes in various densities of 4 to 40lbs. per cubic ft.

  • Max use temperatures of up to 104°C.

  • ask min about how to interpret compressive strength (Technical Data Sheet)

  • General Plastics Indicates that the foam is stress-free, easy to machine, and uniform in density throughout the block.

  • It is said this product is best for low-cost applications, maybe a cheaper option than the tooling board below this.

We can request a small sample of this material from the company for $10 USD

The following is an example of how the foam was used for a CNC-machined topographical map

These are the dimensions of the FR-7100 line in cm

We can also get custom cuts from 3.175 mm in height up to the standard stock heights i.e. the thickness of the material.

LAST-A-FOAM® FR-4700 TOOLING FOAM BOARD

 

  • Foam comes in densities of 18, 30, and 40 lbs. per cubic ft.

  • Max use temperature of 204 °C.

  • Technical Data Sheet (for compressive strength interpretation).

  • General plastics indicates this material is highly machinable, consistently uniform and dimensionally stable.

  • In a video on the website, they showed how the foam was used for a prepreg layup.

  • This material is suited for long term use so, it may come at a higher cost.

We can request a small sample of this material from the company for $10 USD

The following is a picture of a mold machined from the foam

Below are the dimensions of the tooling board

 

You can also get these boards cut in custom sizes exactly like the LAST-A-FOAM® FR-7100 SERIES.

EB700 High-Temperature Epoxy Tooling Board

  • Comes in a density of 700kg/m3.

  • Maximum Service temperature of up to 130oC.

  • Comes in sheet sizes of 250 x 250 mm to 1500 x 500mm and thicknesses of 50mm and 100mm.

  • In a question asked on the product page, somebody asked if this board can be used “As A Mould to Manufacture Pre-Preg Parts” which the answer was yet but, the CTE must be taken into account since it will limit the curing temperature.

The following is a picture of the material being machined into a mold.

 

 

Precision Board High-Density Urethane (PBLT)

  • Comes in Densities ranging from 4 to 75 lbs. per cubic ft. (Custom sizes and densities available by request).

  • Sheet sizes range from 20” x 60” to 5' x 10'.

  • Thickness from 1/2” to 24”.

  • Maximum service temperature of 200oF (around 93.3oC) and flame resistant.

  • Prepreg Layup is one of the indicated applications.