Sanding between coats???
 

Ok this is my first furniture piece so forgive my ignorance. I made
a kitchen island out of cherry and finished it with Olympic oil
based "Natural" stain (pretty much a clear stain)and then put on my
first coat of polyurethane. I am going to let that dry overnite, but
I hear several instructions on "sanding between coats". Does this
mean sanding with an orbital sander with what grit paper? something
like 600 grit? Also how many coats of polyurethane should I use?
thanks!!

It means light hand sanding with 220 or thereabouts. NOT power sanding.
If applied in typical fashion (thickness), three coats is typical
(assuming you aren't thinning the finish much).

David

wrote:
Ok this is my first furniture piece so forgive my ignorance. I made
a kitchen island out of cherry and finished it with Olympic oil
based "Natural" stain (pretty much a clear stain)and then put on my
first coat of polyurethane. I am going to let that dry overnite, but
I hear several instructions on "sanding between coats". Does this
mean sanding with an orbital sander with what grit paper? something
like 600 grit? Also how many coats of polyurethane should I use?
thanks!!

I tend to use 320 more often than 220, as I spray water borne urethane,
instead of poly. You can recoat poly under "normal" conditions in less
than 3-5 hours, btw.

David

David wrote:

It means light hand sanding with 220 or thereabouts. NOT power sanding.
If applied in typical fashion (thickness), three coats is typical
(assuming you aren't thinning the finish much).

David

wrote:

Ok this is my first furniture piece so forgive my ignorance. I made
a kitchen island out of cherry and finished it with Olympic oil
based "Natural" stain (pretty much a clear stain)and then put on my
first coat of polyurethane. I am going to let that dry overnite, but
I hear several instructions on "sanding between coats". Does this
mean sanding with an orbital sander with what grit paper? something
like 600 grit? Also how many coats of polyurethane should I use?
thanks!!

wrote in message
...
Ok this is my first furniture piece so forgive my ignorance. I made
a kitchen island out of cherry and finished it with Olympic oil
based "Natural" stain (pretty much a clear stain)and then put on my
first coat of polyurethane. I am going to let that dry overnite, but
I hear several instructions on "sanding between coats". Does this
mean sanding with an orbital sander with what grit paper? something
like 600 grit? Also how many coats of polyurethane should I use?
thanks!!

Since poly does not normally go on with additional coats being applied over
tacked coats - you put coats on over dried coats, you will want to simply
scruff the surface for adhesion and smooth spreading. Steel wool, 3M pads
or sandpaper ranging from around 320 grit on up will work. All you are
looking to do is break the glaze on the dried coat for the new coat to
adhere to. While you're at it, know down any dust nibs.

If you're spraying it then experiment with spraying additional coats over
tacked up coats. Obviously, you would not sand between coats since the
tacked up coats will not sand very well. Smear would be more like it. I've
had mixed success with spraying poly so I generally just brush it with a
light rub down between coats.
--

-Mike-

On Tue, 19 Oct 2004 05:36:30 GMT, wrote:

Ok this is my first furniture piece so forgive my ignorance. I made
a kitchen island out of cherry and finished it with Olympic oil
based "Natural" stain (pretty much a clear stain)and then put on my
first coat of polyurethane. I am going to let that dry overnite, but
I hear several instructions on "sanding between coats". Does this
mean sanding with an orbital sander with what grit paper? something
like 600 grit? Also how many coats of polyurethane should I use?
thanks!!


Poly usually has a "window" for recoating. If you recoat before this
window ends, usually 4-6 hours, you don't need to sand. If you miss
it, you'll need to wait 24 hours, and scuff sand before recoating.

To me, "scuff sand" usually means 320 grit, using hand blocks and
tadpoles. I might carefully hand sand with 220 if there are large
dust nibs or brush marks to be removed. If the finish "pills" on the
paper, which is small balls of finish appearing on the paper vs. a
clean dust, wait longer to sand.

As for number of coats, it depends on the look you're after. Thinned
poly, wiped on, may need 4-6+ coats. Brushed on, full strength stuff
may only need two. Too much usually makes for an artificial look, too
little may leave uneven spots.

Wiping on usually makes for a much more natural look. You can thin
standard oil-base poly 20-40% with mineral spirits to make it wipable.
Wipe it on with a clean piece of old t-shirt, which can be stored in a
jar or zip-lock for the duration of the project. If you wipe a coat
on every 4 hours or so, sanding will not be required.

It helps to make a scrap board and do EVERY finishing step, including
the same sanding sequence, to the board before the work piece. Write
every step on the back as you go. Problems will then show up on the
board before you're hard worked furniture.

Last comment: If you're looking for a satin finish, only use satin
poly for the last coat. Use gloss for the early coats. Satin and
semi-gloss clear finish include "flattening agents" that can cloud a
multi-coat finish. Gloss finishes build without killing clarity.

Barry

Hand sand between coats. I use 220 grit and move to a higher # for
the next sanding. The purpose is to remove any bumps and to provide a
little "bite" for the next coat of poly. Two or 3 coats is about
right. Follow the manufacturer's suggestions.

On Tue, 19 Oct 2004 05:36:30 GMT, wrote:

Ok this is my first furniture piece so forgive my ignorance. I made
a kitchen island out of cherry and finished it with Olympic oil
based "Natural" stain (pretty much a clear stain)and then put on my
first coat of polyurethane. I am going to let that dry overnite, but
I hear several instructions on "sanding between coats". Does this
mean sanding with an orbital sander with what grit paper? something
like 600 grit? Also how many coats of polyurethane should I use?
thanks!!

Well, to me, the most important information has been omitted - tack the
bugger off well after scuffing or you'll be reattaching sanding dust.

I like 400 wet/dry on a block so it levels and scuffs, lubed by mineral
spirits for a consistent bite.

wrote in message
...
Ok this is my first furniture piece so forgive my ignorance. I made
a kitchen island out of cherry and finished it with Olympic oil
based "Natural" stain (pretty much a clear stain)and then put on my
first coat of polyurethane. I am going to let that dry overnite, but
I hear several instructions on "sanding between coats". Does this
mean sanding with an orbital sander with what grit paper? something
like 600 grit? Also how many coats of polyurethane should I use?
thanks!!

On most of the can of Poly it says to re-coat within a 2 hour time frame.
More importantly, it also states that if you miss that window, you have to
wait 72 hours before sanding and recoating.

I wait the 72 hours, sand with 400 - 600 wet using mineral sprits as a
lubricant, dry, wipe with a clean lint-free towel dampened with mineral
sprits let dry then re-coat. I probably would not go to that much trouble
for a kitchen cabinet however. I would put on two or three coats all within
the 2 hour time frame. Let dry for a few days, touch up bad areas with 600
or 000 steel wool and spray(can) recoat.

Dave



wrote in message
...
Ok this is my first furniture piece so forgive my ignorance. I made
a kitchen island out of cherry and finished it with Olympic oil
based "Natural" stain (pretty much a clear stain)and then put on my
first coat of polyurethane. I am going to let that dry overnite, but
I hear several instructions on "sanding between coats". Does this
mean sanding with an orbital sander with what grit paper? something
like 600 grit? Also how many coats of polyurethane should I use?
thanks!!

72 hours between coats, huh? You've got a LOT more patience than yours
truly! :) I'm chomping at the bit after 2 hours to get the next coat on
(waterborne), or 3-4 hours when using poly (ugh).

David

TeamCasa wrote:
On most of the can of Poly it says to re-coat within a 2 hour time frame.
More importantly, it also states that if you miss that window, you have to
wait 72 hours before sanding and recoating.

I wait the 72 hours, sand with 400 - 600 wet using mineral sprits as a
lubricant, dry, wipe with a clean lint-free towel dampened with mineral
sprits let dry then re-coat. I probably would not go to that much trouble
for a kitchen cabinet however. I would put on two or three coats all within
the 2 hour time frame. Let dry for a few days, touch up bad areas with 600
or 000 steel wool and spray(can) recoat.

Dave



wrote in message
...

Ok this is my first furniture piece so forgive my ignorance. I made
a kitchen island out of cherry and finished it with Olympic oil
based "Natural" stain (pretty much a clear stain)and then put on my
first coat of polyurethane. I am going to let that dry overnite, but
I hear several instructions on "sanding between coats". Does this
mean sanding with an orbital sander with what grit paper? something
like 600 grit? Also how many coats of polyurethane should I use?
thanks!!

David,
That's what the can says - even the waterborne poly.
Dave

"David" wrote in message
...
72 hours between coats, huh? You've got a LOT more patience than yours
truly! :) I'm chomping at the bit after 2 hours to get the next coat on
(waterborne), or 3-4 hours when using poly (ugh).

David

TeamCasa wrote:
On most of the can of Poly it says to re-coat within a 2 hour time frame.
More importantly, it also states that if you miss that window, you have
to wait 72 hours before sanding and recoating.

I wait the 72 hours, sand with 400 - 600 wet using mineral sprits as a
lubricant, dry, wipe with a clean lint-free towel dampened with mineral
sprits let dry then re-coat. I probably would not go to that much
trouble for a kitchen cabinet however. I would put on two or three coats
all within the 2 hour time frame. Let dry for a few days, touch up bad
areas with 600 or 000 steel wool and spray(can) recoat.

Dave



wrote in message
...

Ok this is my first furniture piece so forgive my ignorance. I made
a kitchen island out of cherry and finished it with Olympic oil
based "Natural" stain (pretty much a clear stain)and then put on my
first coat of polyurethane. I am going to let that dry overnite, but
I hear several instructions on "sanding between coats". Does this
mean sanding with an orbital sander with what grit paper? something
like 600 grit? Also how many coats of polyurethane should I use?
thanks!!

My waterborne poly's don't suggest waiting 3 days between coats! Au
contraire! Recoat time as stated on Compliant Spray's site as:

" Drying Time:
Dust free in 3-8 minutes @ (65° to 85°). Sandable for recoat in 20 to 30
minutes. May be force dried after flow-out. "


David

TeamCasa wrote:
David,
That's what the can says - even the waterborne poly.
Dave

"David" wrote in message
...

72 hours between coats, huh? You've got a LOT more patience than yours
truly! :) I'm chomping at the bit after 2 hours to get the next coat on
(waterborne), or 3-4 hours when using poly (ugh).

David

TeamCasa wrote:

On most of the can of Poly it says to re-coat within a 2 hour time frame.
More importantly, it also states that if you miss that window, you have
to wait 72 hours before sanding and recoating.

I wait the 72 hours, sand with 400 - 600 wet using mineral sprits as a
lubricant, dry, wipe with a clean lint-free towel dampened with mineral
sprits let dry then re-coat. I probably would not go to that much
trouble for a kitchen cabinet however. I would put on two or three coats
all within the 2 hour time frame. Let dry for a few days, touch up bad
areas with 600 or 000 steel wool and spray(can) recoat.

Dave



wrote in message
...


Ok this is my first furniture piece so forgive my ignorance. I made
a kitchen island out of cherry and finished it with Olympic oil
based "Natural" stain (pretty much a clear stain)and then put on my
first coat of polyurethane. I am going to let that dry overnite, but
I hear several instructions on "sanding between coats". Does this
mean sanding with an orbital sander with what grit paper? something
like 600 grit? Also how many coats of polyurethane should I use?
thanks!!

A reply from Minwax.

From:
Subject: Minwax.com: Contact Us

Dave,

As long as the conditions you're working in are good, you can recoat within
2 hours (the product will most likely be dry enough within an hour unless
humidity is too high or the temperature is too cool, lack of air
circulation, etc.). As long as you hit the recoat window, the aerosol
version is different in that you will get a chemical bond between coats. If
you don't hit that window, the finish will skin over or cure enough on the
surface, so if you were to try to recoat at that point, the new coat would
cause the one underneath to wrinkle. This is why we suggest allowing the
finish to cure for 72 hours, then create a mechanical bond by lightly scuff
sanding before applying the next coat of the aerosol version, if you're
unable to hit the recoat window.

Sincerely,
Eric

"David" wrote in message
...
My waterborne poly's don't suggest waiting 3 days between coats! Au
contraire! Recoat time as stated on Compliant Spray's site as:

" Drying Time:
Dust free in 3-8 minutes @ (65° to 85°). Sandable for recoat in 20 to 30
minutes. May be force dried after flow-out. "


David

Why on earth are you quoting Minwhacks??? No where did I mention my
application of Minwhacks products. I HATE Minwhacks, AAMOF. Most other
mfgrs produce superior finishes and stains.

David

TeamCasa wrote:

A reply from Minwax.

From:
Subject: Minwax.com: Contact Us

Dave,

As long as the conditions you're working in are good, you can recoat within
2 hours (the product will most likely be dry enough within an hour unless
humidity is too high or the temperature is too cool, lack of air
circulation, etc.). As long as you hit the recoat window, the aerosol
version is different in that you will get a chemical bond between coats. If
you don't hit that window, the finish will skin over or cure enough on the
surface, so if you were to try to recoat at that point, the new coat would
cause the one underneath to wrinkle. This is why we suggest allowing the
finish to cure for 72 hours, then create a mechanical bond by lightly scuff
sanding before applying the next coat of the aerosol version, if you're
unable to hit the recoat window.

Sincerely,
Eric

"David" wrote in message
...

My waterborne poly's don't suggest waiting 3 days between coats! Au
contraire! Recoat time as stated on Compliant Spray's site as:

" Drying Time:
Dust free in 3-8 minutes @ (65° to 85°). Sandable for recoat in 20 to 30
minutes. May be force dried after flow-out. "


David

David,
The point was, read the instructions. The poly I used on the last project
said wait 72 hours before sanding. If the OP (or anyone else reading this
post) was using Minwax Spray Poly, then sanding after only a few hours would
raise havoc with their project.

AAMOF - really a fact or just your humble opinion. IMHO, Minwax makes a
good product for many applications. I will grant you there are better ones
out there and I have used many of them. The use drives my decision on the
product choice.

Dave


"David" wrote in message
...
Why on earth are you quoting Minwhacks??? No where did I mention my
application of Minwhacks products. I HATE Minwhacks, AAMOF. Most other
mfgrs produce superior finishes and stains.

I've sprayed Minwhacks and had no problem sanding after 3 1/2 to 4
hours...but I reserve my right to use non-Minwhacks products from now
on. :)

As to the "AAMOF" that you mention, I was stating an absolute "FACT";
that I hate their products. That is not opinion, nor subject to
interpretation, or spin by you. My last comment about other products
was, indeed, my humble "opinion".

David

TeamCasa wrote:

David,
The point was, read the instructions. The poly I used on the last project
said wait 72 hours before sanding. If the OP (or anyone else reading this
post) was using Minwax Spray Poly, then sanding after only a few hours would
raise havoc with their project.

AAMOF - really a fact or just your humble opinion. IMHO, Minwax makes a
good product for many applications. I will grant you there are better ones
out there and I have used many of them. The use drives my decision on the
product choice.

Dave


"David" wrote in message
...

Why on earth are you quoting Minwhacks??? No where did I mention my
application of Minwhacks products. I HATE Minwhacks, AAMOF. Most other
mfgrs produce superior finishes and stains.