Signblanks Molded, HDU Signblanks


How do I get a wooden sign that will not..... rot, crack, warp, split, blister,bleed or peel and last for more than 50 years?


Easy - use a cast/molded urethane signblank from Classic Signs


Classic Signs is unusual in it's ability to mold and cast signs in a couple of different mediums. This page is dedicated to...

HDU (high density urethane) Signblanks


All heart vertical grain redwood looks beautiful when sandblasted, and so for many of our signblanks that is what we used to make the masters. From that master a mold is made. We then cast our signblanks either in HDU (high density urethane ) or in solid polyester or solid urethane (depending on the project).


The result is a molded signblank that looks and feels exactly like the original item, down to a microscopic level. It is so exact you cannot tell the difference until you dig into it with a knife.



It is resistant to heat and cold, it has zero moisture content, and a very low expansion/contraction factor, it won't rot, crack, warp, split, blister, bleed or peel.


Its paint will gradually fade (as all paint does) over time; it ages very gracefully. If it is kept painted it will last indefinitely, that's a very long time so we just claim it will last for 50 years or more.


We have many signs that are now about 23 years old that still look great.

We recommend repainting every 6-10 years to look their best, that's depending on your location the color and type of paint used etc.


For everyday commercial use we recommend our hdu signblanks. (see our gallery)

It's when we get into more specialized usage that we suggest Polyester molded signs. Anywhere they are in danger of being hit hard; golf balls, animals even vandalism.

Damage by animals is rare but if it occurs its usually where there are no humans, at the far end of a golf course or on a walking or hiking trail. Polyester signblanks are also recommended for traffic signage; Speed limit signs, stop signs etc. Polyester Signblanks

Custom Molded


link to Custom molded Signblanks page



I you are in need of a lot of signs for a resort or a golf course or maybe even a walking or hiking trail, we can provide you with the right product at the right price and save you a lot of money.


Some signs will always need to be custom made, however once we get to secondary and tertiary signs, street name signs and trail or directional signs, making molds and casting them is practical, attractive and very cost effective.


Plus if the individual sign blanks are lettered using vinyl , when a sign is no longer needed don't throw it away, remove the vinyl letters and reuse it . Recycling at its best and you don't have to buy a new sign.


When we create custom molds for our clients we usually include their logo or emblem in the master sign that we make the mold from. This way your logo is an integral part of every sign.



See video super tough signs

See our gallery of vandal resistant signs

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Every custom sandblasted sign, carved sign & routed sign we create is individually designed and made for you. You can request more information for your project using the form above. Or for fast personal service, call one of our designers.
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Featured Sign of the Month

Uwharrie Point Country Club Main Entrance

This PVC Monument Sign is approx 8ft high by 14ft. wide and was originally made from Redwood. After approx 25 years it had rotted. The board of the residents association were very keen to keep the original appearance exactly the same as the original but they wanted it to be from a material that wouldn't rot.  We had access to  the original architects drawings, so we set about converting the plans into a computer file engineered to be made from PVC and aluminum but to look exactly like the original. Every piece of coving and molding was made in house, and then assembled into three pieces which were transported to the site where it was assembled. The whole monument sign was painted with six coats of a high quality Benjamin Moore latex paint ( it lasts longer on PVC than paints costing over $100 .00/gall more. Then apart from the center panel all of the monument was painted once more by brush and as it was drying the brushes were dragged carefully along the length of each section creating a wood grain effect; thus removing any appearance of the sign looking plastic.

uwharrie point entrance sign pvc monument classic signs nc 900x536