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Ok to sand in hot weather?

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Forum topic by 72hw posted 05-02-2014 01:11 AM 791 views 0 times favorited 14 replies Add to Favorites Watch
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72hw

85 posts in 797 days


05-02-2014 01:11 AM

Topic tags/keywords: sanding finishing question mahogany maple wenge sander

So I was at the neighborhood Ace this evening picking up some paper for my ROS. Decided to try the Shop Smith stuff as everyone around here raves about it and as I was going to check out a friendly guy who obviously works hard asked me if I was going to use the sandpaper tonight. He gave me the impression it was too hot outside to sand, but the conversation drifted to other topics quickly and we never got back to it.

Total NOOB question time…

So here’s the deal, I have some bottle opener backer boards I was hoping to get sanded this evening with the intent of putting on a coat of Danish oil once it cooled off a bit. It was around 95 F today in Sierra Madre (Los Angeles) and is currently in the high 80’s at 6:00 PM. My plan was to sand the boards, made of mahogany, wenge and maple, down to 220 grit and then put a couple coats of Watco on them once temps cooled down into the 70’s after dinner.

The weather is supposed to be even hotter tomorrow, upwards of 100 F, but I was hoping to get these new openers done before a big party… You know, lots of beer drinkers drinking beer should be willing to part with some cash for a spiffy magnetic beer opener, right?

Is this a fools plan?

How would temprature affect sanding in a negative way?

I bet the simple answer is expansion and contraction of the grain, but I’m really good at missing the obvious. I kinda don’t want to F them up, ya know?

Bashfully,

Christopher

-- “Weird heroes and mould-breaking champions exist as living proof to those who need it that the tyranny of 'the rat race' is not yet final.” ― Hunter S. Thompson


14 replies so far

View richardwootton's profile

richardwootton

1335 posts in 641 days


#1 posted 05-02-2014 01:24 AM

I can’t think of a good reason not to sand in warm weather, but I just don’t know. I usually try and avoid sanding as much as possible and opt for a smooth plane.

-- Richard, Hot Springs, Ar -- Galoot In Training

View bondogaposis's profile

bondogaposis

2590 posts in 1037 days


#2 posted 05-02-2014 01:31 AM

Other than the sand paper getting hotter faster and wearing out a little sooner, there is no good reason not to sand.

-- Bondo Gaposis

View woodchuckerNJ's profile

woodchuckerNJ

886 posts in 320 days


#3 posted 05-02-2014 01:34 AM

I have only 2 guesses.
One that you will sweat all over your work.
Or that the glue on the sandpaper would weaken from the heat of the air and heat of sanding. Or the velcro might fail from both.

That’s just a guess.

-- Jeff NJ

View 72hw's profile

72hw

85 posts in 797 days


#4 posted 05-02-2014 01:35 AM

I agree about the plane, and try to avoid sanding too but I don’t have a profile card scraper that will work for this at the moment.

Good point about the sweat!

So what about the finish? Watco claims the Danish oil cures quickly…

C

-- “Weird heroes and mould-breaking champions exist as living proof to those who need it that the tyranny of 'the rat race' is not yet final.” ― Hunter S. Thompson

View Dark_Lightning's profile

Dark_Lightning

1760 posts in 1795 days


#5 posted 05-02-2014 02:42 AM

Too hot to sand for him. Nothing to do with sanding in general.

View lateralus819's profile

lateralus819

1444 posts in 575 days


#6 posted 05-02-2014 02:45 AM

Only thing i could guess is sweat. I’ve noticed it and it IS annoying if you’re sweating and the sawdust is stickin to ya.

I remember having to re-sand a table top in 90+ degree weather, drippin all over it, and caked in dust. No fun.

-- Never confuse mistakes with failure. Kevin

View JAAune's profile

JAAune

860 posts in 1002 days


#7 posted 05-02-2014 02:50 AM

Yes, sawdust and sweat is an unpleasant combination. This is especially true if you’re sanding reddish-hued woods and are wearing light-colored clothing.

Mahogany dust could earn a second life as an additive in RIT products.

-- See my work at http://remmertstudios.com and http://altaredesign.com

View 72hw's profile

72hw

85 posts in 797 days


#8 posted 05-02-2014 02:56 AM

Good thing I did the padouk last week then – it was only in the high 80’s!

C

-- “Weird heroes and mould-breaking champions exist as living proof to those who need it that the tyranny of 'the rat race' is not yet final.” ― Hunter S. Thompson

View Grandpa's profile

Grandpa

3182 posts in 1361 days


#9 posted 05-02-2014 03:08 AM

Yes it is bad to sand in the heat. It makes you sweat and get all hot and smelly. Never heard of any reason to not sand in the warm temps. I usually work in the heat and if it isn’t hot I usually turn the heater on in the shop. We have 2 seasons in Oklahoma. Hot and cold.

View Ingjr's profile

Ingjr

138 posts in 1702 days


#10 posted 05-03-2014 12:43 AM

If I couldn’t sand when it’s hot I’d never get anything done. It’s always hot.

-- The older I get the faster I was.

View mantwi's profile

mantwi

312 posts in 582 days


#11 posted 05-03-2014 01:26 AM

The heat will not effect the performance of the sand paper at all. Saying it’s too hot to sand had to have more to do with your comfort than anything else. When your sweaty the dust clings to you a little more than when you aren’t. I hate sanding no matter what the weather and am easily convinced to plane or scrape instead.

View bbc557ci's profile

bbc557ci

543 posts in 760 days


#12 posted 05-03-2014 03:32 AM

Maybe the guy actually meant high humidity? Would high humidity affect how well (or not) some woods would sand??

-- Bill, central NY...no where near the "big apple"

View Rick M.'s profile

Rick M.

4123 posts in 1066 days


#13 posted 05-03-2014 05:21 AM

The guy was making small talk, nothing more.

-- |Statistics show that 100% of people bitten by a snake were close to it.|

View 72hw's profile

72hw

85 posts in 797 days


#14 posted 05-03-2014 11:53 PM

Yeah – I believe Rick is right. I sanded and finished the items with no incident at all… other than being a bit sweaty – but it IS Southern California after all!

-- “Weird heroes and mould-breaking champions exist as living proof to those who need it that the tyranny of 'the rat race' is not yet final.” ― Hunter S. Thompson

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