SANDBLASTED HDU SIGNS

High Density urethane is the best choice for sandblasted signs. It can look like wood grain or stone

High Density Urethane (HDU) is great for making sandblasted signs as well as many other 3 dimensional signs. It is a closed cell rigid foam that was originally developed for the aerospace industry.

The same material that we use for making Sandblasted HDU signs is ...

now to be found in everything from nuclear submarines to the wings of modern jets to wall cavities in your home.

The reason it is so good for Sandblasted HDU signs is because it won't......

Crack, Warp, Split, Check, Rot, or Bleed

And as long as you keep paint on your Sandblasted HDU sign it will never deteriorate, and that's a long time.

My own original HDU Sandblasted House Sign

My original sandblasted HDU house sign that is now 18 years old, was replaced with a new sandblasted HDU house sign 14 years ago. I took the old one and left it outside in full sun just to see what would happen. It was never repainted.

Do you want to know what happens to Sandblasted HDU signs if they are left to rot for nearly twenty years?

Absolutely NOTHING. Sandblasted HDU signs have a very low expansion - contraction factor, that means they don't move very much between heat and cold. When you couple that with the fact that they have zero moisture content, there really isn't much to go wrong.

All wooden sandblasted signs have moisture in them, when they heat up they expand, the paint can soften in the sun and when the moisture expands it can form a blister. When the cold weather comes the moisture has retracted into the sandblasted sign and the blister can crack. this channels more water into the sign and a downwards spiral is created.

With a Sandblasted HDU sign that downwards spiral never starts

So the paint simply ages gracefully. Sure the Ultra Violet sunlight will fade the paint away to nothing eventually. This is why its very important to use a good quality paint. Look at the photograph of the 18year old sandblasted HDU sign. There is hardly any paint left but there is no sign of cracking or splitting; the HDU is complete and solid.

SANDBLASTED HDU STONE TEXTURE SIGNS