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-MIKE- -MIKE- is offline
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Default How to Quickly Seal Hardboard

On 8/18/17 1:36 PM, William Ahern wrote:
Ed Pawlowski wrote:
On 8/10/2017 2:33 PM, William Ahern wrote:

snip
My question is, what's the quickest way to seal the hardboard? I was
thinking Modge Podge or triple-thick water-based polyurethane. Both Modge
Podge and polyurethane can take weeks to fully cure. How much time should I
wait before putting the sealed hardboard back under the mattress?


Shellac. Dries in minutes. Zinsser brand is readily available.


Thank you. And to -MIKE-, too. It worked great. It's been a few days since I
put the hardboard back in place, and no hint of a smell. And I loved the
ease of applying and cleaning up the shellac.

I used oil-based polyurethane to refinish the inside of our cupboards when
we moved into our house a few years ago, but that stuff was a nightmare to
clean up and not something I'd want to revisit unless I had a 52 gallon
barrel of mineral spirits to store my brushes. I used water-based
polyurethane to finish our dining room chairs and table (a kit from Shaker
Workshop), which was much more convenient, but that's partly because I
purchased a huge box of disposable foam brushes.

The shellac is just incredibly convenient. I have half a mind to try it on
some other project that might see some wear & tear, like a side table. The
way my kid is destroying the finish on our furniture and floors, I'm
attracted to the thought of being able to easily touch things up. OTOH, I'm
still a real novice at finishing. I end up have to sand away alot of
mistakes. The shellac seems like it might gum up sandpaper. The oil poly did
that, too, but probably it hadn't yet even fully dried--I was racing to get
3 coats on everything ASAP so my wife could setup the kitchen. Instead of
sanding, is it common to use thinner to even out a damaged or poorly applied
shellac surface before touching it up?


YEA!!! :-)

I don't know if it's what you used, but the Zinsser BIN shellac based
primer sands very well.
I've actually sanded it down to a very smooth, glossy sheen.
It ended up looking like white spray paint, except no streaks or drips.


--

-MIKE-

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