Tag Archives: fiberglass mould

Plastaline Sculpting on Fiberglass/Running Foam Latex

8 Apr

Having been to Russia, I have been racing to catch up with my work so I can join the third years in running foam latex.

Well, I made it!

When running foam latex you need to consider the room humidity along with temperature, luckily on this day it was seemingly optimal. We collected out products and got to work!

SCULPTING ON FIBERGLASS

I actually have misplaced the images for sculpting on fiberglass, so the wonderful Leanne Marsh has lent be hers. Sculpting on fiberglass is literally the same as sculpting on the plaster (see past blog post). However we cannot use plaster for foam latex as when cooking it in the over, the plaster will crack and break.

Once we have finished our sculpt, we need to use a moisture seal spray, followed by three layers of release agent spray – leaving 10minutes in between each layer so it can dry. Once this has been completed we can start out fiberglass process again (see previous post for more detail), only this time we need a add an extra layer. Layering is as follows:

  • 1x Moisture Sealant
  • 3x Release Agent
  • 1x Gel Coat
  • 1x Fiberglass Tissue
  • 2x Fiberglass Matt
Image by Leanne Marsh

Image by Leanne Marsh

Image by Leanne Marsh

Image by Leanne Marsh

Image by Leanne Marsh

Image by Leanne Marsh

Once this is all dry and fully set over 24-48hours, we need to smooth down the edges. Once this has been done, we crack open the mould and clean it out using a sculpt tool & brush, along with some lighter fluid and a good amount of elbow grease. Now it’s time to get running!

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RUNNING FOAM LATEX

YOU WILL NEED

  • Base Agent
  • Foam Latex Agent
  • Gelling Agent
  • Curing Agent
  • Colour (we used an fleshy acrylic colour)
  • Electronic Mixer
  • Spatula
  • Fiberglass Core & Negative
  • Fiberglass Oven
  • Bolts & Screws for holes drilled into mould

METHOD

  1. Add base agent to mixing bowl, measure out required amounts of foam and curing agent.

  2. Add the curing and foam agent along with the required amount of colour (in this case it was a large pea sized amount), then set the speed to high.
  3. When the head runner calls, change the speed to low, then measure out and add the gelling agent.
  4. Once this has all been mixed together and the head runner calls, stir manually with a spatula for several minutes before adding to the fiberglass moulds. Put the two half moulds together and secure with the bolts. This then needs to go in the oven.
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  5. Once your piece is out of the oven, allow to cool and then remove the bolts. Slowly take out your piece. As it will be covered in ammonia, it needs to be washed several times in warm soapy water to cleanse it.

    My Squid-Woman Hand

    My Squid-Woman Hand

I was really happy with how mine turned out. No rips, bubbles – nothing! and the foam latex off went off brilliantly.

This was just a taster session and we will be studying foam latex more in the third year. I have further details on this process, so please message me if you would like to know more!

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