I have seen a few queries on edge-treating MDF. Here is a wonderful
solution:

A sign-maker had me do some 3D sculpting on my CNC using 1" MDF as a
substrate. Needless to say, it exposed a whole whack of fuzzy grain.
He told me that was easy to deal with if one used
Zinser BullsEye Stain covering white ceiling primer.
We did.
It dried ready for sanding in 2 hours (I suppose that could vary with
temperature and all that).
It is a bit messy as it is oil-based..at least it needs mineral
spirits for clean-up.
The result was absolutely effortless, fast, cheap, and just great.

Works like a charm. If you didn't know this already, you do now.

r

Happy CANADA DAY

"Robatoy" wrote in message
...
I have seen a few queries on edge-treating MDF. Here is a wonderful
solution:

Zinser BullsEye Stain covering white ceiling primer.

Pigmented Shellac.

Dave in Houston

On Jun 30, 11:39*am, "Dave in Houston" wrote:
"Robatoy" wrote in message

...

I have seen a few queries on edge-treating MDF. Here is a wonderful
solution:
Zinser BullsEye Stain covering white ceiling primer.

* * Pigmented Shellac.

Dave in Houston

Sure, easy for you to say.

On Jun 30, 8:23 am, Robatoy wrote:
I have seen a few queries on edge-treating MDF. Here is a wonderful
solution:

A sign-maker had me do some 3D sculpting on my CNC using 1" MDF as a
substrate. Needless to say, it exposed a whole whack of fuzzy grain.
He told me that was easy to deal with if one used
Zinser BullsEye Stain covering white ceiling primer.
We did.
It dried ready for sanding in 2 hours (I suppose that could vary with
temperature and all that).
It is a bit messy as it is oil-based..at least it needs mineral
spirits for clean-up.
The result was absolutely effortless, fast, cheap, and just great.

Works like a charm. If you didn't know this already, you do now.

r

Happy CANADA DAY

Try some thinned drywall compound. Dries faster, too. Tom

So it's route, paint, sand?

I recently had some shapes cut on my buddys full sheet CNC from 3/4
MDF. What he handed me is super clean on all edges and I know he
didn't sand anything because I showed up right as he finished and
picked it up off the table myself. It was just a typical end mill type
cut edge, no profile.

Is it just profiled edges that have a problem or do you have an edge
fraying problem with straight cut edges also?

On Jun 30, 8:23*am, Robatoy wrote:
I have seen a few queries on edge-treating MDF. Here is a wonderful
solution:

A sign-maker had me do some 3D sculpting on my CNC using 1" MDF as a
substrate. Needless to say, it exposed a whole whack of fuzzy grain.
He told me that was easy to deal with if one used
Zinser BullsEye Stain covering white ceiling primer.
We did.
It dried ready for sanding in 2 hours (I suppose that could vary with
temperature and all that).
It is a bit messy as it is oil-based..at least it needs mineral
spirits for clean-up.
The result was absolutely effortless, fast, cheap, and just great.

Works like a charm. If you didn't know this already, you do now.

r

Happy CANADA DAY

SonomaProducts.com wrote:

Is it just profiled edges that have a problem or do you have an edge
fraying problem with straight cut edges also?

Probably just a bit of smudging on his CAD drawing.



--
Morris Dovey
DeSoto Solar
DeSoto, Iowa USA
http://www.iedu.com/DeSoto/

Morris Dovey wrote:
SonomaProducts.com wrote:

Is it just profiled edges that have a problem or do you have an edge
fraying problem with straight cut edges also?

Probably just a bit of smudging on his CAD drawing.

Must have used SketchUp.
g,d&r

--
Froz...

"tom" wrote in message
...

Try some thinned drywall compound. Dries faster, too. Tom

I dunno. That's water-based and I'd think it might cause some swelling.

--
Dave in Houston

It hides the burn marks on cherry quite well too.
Art

"Robatoy" wrote in message
...
I have seen a few queries on edge-treating MDF. Here is a wonderful
solution:

A sign-maker had me do some 3D sculpting on my CNC using 1" MDF as a
substrate. Needless to say, it exposed a whole whack of fuzzy grain.
He told me that was easy to deal with if one used
Zinser BullsEye Stain covering white ceiling primer.
We did.
It dried ready for sanding in 2 hours (I suppose that could vary with
temperature and all that).
It is a bit messy as it is oil-based..at least it needs mineral
spirits for clean-up.
The result was absolutely effortless, fast, cheap, and just great.

Works like a charm. If you didn't know this already, you do now.

r

Happy CANADA DAY

Artemus wrote:
It hides the burn marks on cherry quite well too.
Art

So does black paint.
;-)
--
Froz...

"Robatoy" wrote in message
...
I have seen a few queries on edge-treating MDF. Here is a wonderful
solution:

A sign-maker had me do some 3D sculpting on my CNC using 1" MDF as a
substrate. Needless to say, it exposed a whole whack of fuzzy grain.
He told me that was easy to deal with if one used
Zinser BullsEye Stain covering white ceiling primer.
We did.
It dried ready for sanding in 2 hours (I suppose that could vary with
temperature and all that).
It is a bit messy as it is oil-based..at least it needs mineral
spirits for clean-up.
The result was absolutely effortless, fast, cheap, and just great.

Works like a charm. If you didn't know this already, you do now.

Yup, the ends need to be sealed with anything except a water based product.

"SonomaProducts.com" wrote in message
...
So it's route, paint, sand?

I recently had some shapes cut on my buddys full sheet CNC from 3/4
MDF. What he handed me is super clean on all edges and I know he
didn't sand anything because I showed up right as he finished and
picked it up off the table myself. It was just a typical end mill type
cut edge, no profile.

Is it just profiled edges that have a problem or do you have an edge
fraying problem with straight cut edges also?

Any edge "will" have a problem if you add a water based product directly to
it.

On Jun 30, 3:51*pm, FrozenNorth
wrote:
Artemus wrote:
It hides the burn marks on cherry quite well too.
Art

So does black paint.
;-)
--
Froz...

*gasping for air*