Precision Board

Precision board is HDU, similiar to Sign Foam, it is much dustier
than Sign Foam, and I've heard it doesn't hold up as well as
sign foam does outdoors....very nice to carve, routing shouldn't be
a problem...
It comes in different densities, and thicknesses, and is less
expensive than sign foam...

Treat it as you would MDO, sand, prime, and I would use
all oil based paints and I shot paint for letters (my own
preference)...I would also put at least two coats of
paint on the surface because it is pourous ...

 

what do you mean by fillers? HDU dents and chips, pebbles from transporting
puts holes (dents) into it....I fill those with spackle paste, just have to be
careful, cause when you paint if the spackle isn't properly primed and smoothed over well, you will see the spackle (shows up shiny), ...

depending on size of spackle, I sometimes prime first, then spackle, sand, prime with BIN, then start putting on final coats, and of course, the more
you paint, the less you'll see of the spackle...

maybe Precision Board is more porous than Sign Foam, hence the fillers, but if I was doing it, I wouldn't use any fillers unless it was absolutey necessary

 

HDU is very easy to paint, just make sure to blow all the dust off the surface with an airgun. You don't have to use a primer for adhesion but we normally do just to get a smooth surface. You will find that HDU is compatible with any of the paints you normally use. We use oneshot with hardener over signfoam primer.

ernie

 

Jen,
Just sand, blow off the residue, prime and paint..
you need not use fillers UNLESS you have a major
flaw in the substrate...the epoxy is for cluing piece to
piece (ie: you may need a 60" x 120" substrate and
rather than buying a 60" x 120" - rather pricey, you
would clue, and if you do clue, you Gorilla Glue)..

anyways,
sand well after the primer and all additional coats..

 

I would still use FSC-88 its a great product as a primer filler. Precision board will have more pitted areas because it has more air bubbles than signfoam during manufacturing, so I'm told. Good reason to use FSC-88 first. Let us see the end result!

Mark

 

Jen,
That sounds to low to me lets see what other people have to say. I have only done a few of these but they are time consuming. :

 

it musta been that "bean" family that gave the low price!!!!!

 

Jen,
I must've missed the post in ref; price...we're still talking HDU?
I see $375 for a 44 x 16...2 sided..
What density, what thickness?

 

I'm glad you bid more than $375.
HDU is labor intensive and bid should be in the range
of 80 to 110 dollars sq foot, and 2nd side is 70% of first side..