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High densiity P.U Foam !!! I have loads of the stuff which is: 6" to 8" thick in 4 foot x 6 foot slabs. I'm located in England and can supply slabs or off-cuts at a mere fraction of manufacturers...

AIR CONVECTION OVENS
This is an often-neglected type of heat source for thermoforming plastic sheet. The normal mind-set is that you need some kind of a machine with a heating source to form plastic...

Whatever size oven you require and whatever the temp needed then you cannot beat a gas oven. You want even-heat then go for gas. Construct a metal box with a hinged-lid. Beneathe the metal floor of...

Hi Scott. Non regulated ovens will work very well indeed in this instance. The guy who intends to make auto panels would be making them one at a time and not on a 'conveyer belt' principle. He would...

Hi Troy,
Having been in the GRP (glass reinforced plastic) industry for a little over 30 years I should note that: You could pull 40+ vacuum formed parts by the time your initial gell coat has...

FACT: Everyone knows that gas heated ovens work regardless of what ever we decide to put into them -- if this wasnt so then few of us would ever have eaten a hot dinner, roasted a turkey, baked bread...

I think you are on the right track. You have no problem building the GRP moulds but your proposed oven (nichrome wire) is a No No!
I suggest you build a gas oven. Use Thermal Block (available from...

Thanks for that Jeff, but I'm talking of two per sheet and not two in total. I have several hundred sheets to form. Do you think I would have bothered anyone in a forum based upon two only? -- duh!

Hello, Im new to vac forming but have jumped in at the deep end so to speak. My aim is to produce two chanels in a 10 foot x 21" sheet of 3 mm (3/16") ABS. Each chanel is to be 2" wide with a depth...