What Grit should I start off with - paint/wood

mobiledynamics · 04-22-2012, 11:09 PM

I'm sanding/removing with a Rotary Sander paint/joint compound that is ontop of wood jambs. The goal is to bring it back to wood, then fill the indents with wood filler...prime and paint.

Due to expansion/contraction, the plywood jambs is transferring cracking through the mud/paint.

How agressive should I start. 40/60 or 80 grit....

jklingel · 04-23-2012, 12:34 AM

it's easy to start w/ 80 and see how it goes. i bet you end up ripping it up w/ the 40, then tapering down a tad.

Just Bill · 04-23-2012, 07:15 AM

I vote for 80 to start, also. If you get too aggressive to start, it takes more sanding to get out the scratches. Use a shop vac and a good respirator or similar to keep down the dust, especially if the house is pre-1978.....lead based paint.

sdsester · 04-23-2012, 10:05 AM

I bought inexpensive pvc fittings and matching flex tubing to match up the exhaust tubes my sanders to the shop vac.

As suggested start with finer grit and mind lead.

I will also plug infrared strippers. Amazing tools for stripping layers of paint. Fast and safe. Expensive but you can rent. Or buy and sell instantly when done. Best approach to such projects I have ever encountered. Got good money for my well used one!

mobiledynamics · 04-23-2012, 10:40 AM

I looked at those infared strippers. I'm sanding this with my Festool and Ceros system so dust is minimal.
And with a scraper, it does some off, so I won't need the grunt of the infared...which while effective, is slow.

Not alot. Just about 7 Door Jambs, and 3 *window headers* -- top of basement window RO.

04-22-2012, 11:09 PM	#1
mobiledynamics Member Join Date: Jul 2010 Posts: 243	What Grit should I start off with - paint/wood I'm sanding/removing with a Rotary Sander paint/joint compound that is ontop of wood jambs. The goal is to bring it back to wood, then fill the indents with wood filler...prime and paint. Due to expansion/contraction, the plywood jambs is transferring cracking through the mud/paint. How agressive should I start. 40/60 or 80 grit....

04-23-2012, 12:34 AM	#2
jklingel Member Join Date: Dec 2008 Location: Fairbanks, AK Posts: 1,747	What Grit should I start off with - paint/wood it's easy to start w/ 80 and see how it goes. i bet you end up ripping it up w/ the 40, then tapering down a tad.

04-23-2012, 07:15 AM	#3
Just Bill Member Join Date: Dec 2008 Location: Wilmington, DE Posts: 3,098	What Grit should I start off with - paint/wood I vote for 80 to start, also. If you get too aggressive to start, it takes more sanding to get out the scratches. Use a shop vac and a good respirator or similar to keep down the dust, especially if the house is pre-1978.....lead based paint.

04-23-2012, 10:05 AM	#4
sdsester Member Join Date: Sep 2009 Location: Chicago Posts: 8,929	What Grit should I start off with - paint/wood I bought inexpensive pvc fittings and matching flex tubing to match up the exhaust tubes my sanders to the shop vac. As suggested start with finer grit and mind lead. I will also plug infrared strippers. Amazing tools for stripping layers of paint. Fast and safe. Expensive but you can rent. Or buy and sell instantly when done. Best approach to such projects I have ever encountered. Got good money for my well used one! __________________ To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

04-23-2012, 10:40 AM	#5
mobiledynamics Member Join Date: Jul 2010 Posts: 243	What Grit should I start off with - paint/wood I looked at those infared strippers. I'm sanding this with my Festool and Ceros system so dust is minimal. And with a scraper, it does some off, so I won't need the grunt of the infared...which while effective, is slow. Not alot. Just about 7 Door Jambs, and 3 window headers -- top of basement window RO.

What Grit should I start off with - paint/wood