Molded / Cast Polyester Sign-blanks

cast HDU 12 sandblasted stop sign from Classic signs NC 160x120

Signblasters and Classic Signs is probably the only custom/production sign company in the USA that is capable of creating a master and mold, and then casting HDU or polyester sign blanks in-house on a daily basis.

Giving us the capability to duplicate the original molded sign blank in quantities; not only very cost-effectively, but also from either long-lasting HDU or almost indestructible polyester.

Below is a list of some of the materials that our molded and cast sign blanks emulate (down to a microscopic level). The material we make our molds from is so accurate, if you poured it onto a newspaper, let it set, then cast either the HDU or the polyester on it, you would be able to read the newsprint in the cast item.

Molds made and Cast from:

Wood:driftwood plain bars cast hdu signblank from classic signs nc 300x169

  • Poplar or pine sanded smooth but you can still see the grain.
  • sandblasted Redwood (all heart, clear vertical grain).
  • Greenwood. That is wood that has not been dried, so that when it is worked and shaped it has the look of driftwood or wood that has been eroded by nature.

The white is a sandblasted cedar sign primed white
The Pink is a silicone rubber mold made from the sandblasted sign.
The green is a cast and fully painted polyester sign

cobble creek molded resin sign cedar unbreakable 320x240


community entrance sign indestructable looks exactly like sandblasted cedar cast in solid polyester finished 320x240











  • The sign on the right was taken from an original cast iron road sign in a cemetery and reproduced in polyester. It is double-faced 
  • For instance, a double faced cast polyester st sign for cemetery classic signs nc 220x180ishpiece of iron that was hand-beaten and weathered to form a strap for an old door that was washed up on a beach.
  • Two horsemen originally cast in bronze

 hammered rusty metal band


 two horsemen cast polyester sign from classic signs nc


 golf cart crossing molded cast golf sign classic signs nc 160x120



Sandblasted HDU

  • HDU (stone texture background) This is useful if you want to match existing sandblasted HDU signs but require something much stronger, or if you require numerous signs and want to save a lot of money.



Sandblasted "Extiria" board

  • One of our clients already had numerous street and traffic signs made from sandblasted Extiria board obtained from another company but realized they could save a lot of money by using our molded polyester signs. They did however want to keep the look of what they already had. So we made masters from the same material and then cast the sign blanks in solid polyester. They now have signs that look exactly like their existing signage but now it will last for decades and they save for example; over $60.00 on each stop sign. We still use the Extiria board for one-off custom signs.


  • From concrete to marble and everything in between.


Our molded generic range of cast sign blanks can be finished and lettered for you to your specifications, or we can send you the primed sign blank for you to finish.

see our directory of standard molded sign blanks

We also produce molded and cast HDU or Polyester traffic signs such as molded speed limit signs and street signs etc.

See our directory of molded / cast traffic signage

custom molded and cast sign blanks

Whether you need 20 super strong molded sign blanks that can withstand hurricane-force winds for your city signs.

A hurricane-resistant molded sign undergoing some abuse

Or you are a resort that's fed up with throwing away expensive dimensional signs every time a small change is made to your campus. Classic signs can create several sizes of molded sign-blanks incorporating your logo, to cover all of your secondary and tertiary sign requirements each molded sign blank can be lettered with vinyl or digital graphics so that if a sign is no longer needed it can be re-lettered instead of throwing it away.

custom molded and cast signs


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Call us on 1800.948.4307 now for assistance with your sign project

or even better use the form to the left and

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bottom collage Lauren 1a 364x168

Some of what we create on a regular basis

Signs we manufacture are used for but limited to: Business signs, shops signs, restaurant signs, condominium Signs, subdivision signs, golf course signs, street signs, housings development signs, salon signs, beauty parlor signs, real estate signs, commercial signs, industrial signs, house signs, farm signs, beach house signs, resort signs, traffic signs, hotel & inn signs, pub signs, vehicle signs, interior & ada signs, boat signs, truck signs, office signs professional signs, trail signs wall sign, entrance signs, lobby signs, street name signs, outdoor signs, custom signs, mall signs, retail signs , marina signs, architectural signs.

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