Stripping a painted cement floor - Paint Talk - Professional Painting Contractors Forum
CLICK HERE AND JOIN OUR COMMUNITY TODAY, IT'S FREE!
Go Back   Paint Talk - Professional Painting Contractors Forum > Painting Forum > General Painting Discussion

Reply
 
Thread Tools Display Modes
Old 11-08-2009, 10:49 AM   #1
Junior Member
 
Join Date: Sep 2009
Posts: 14
Rewards Points: 10
Thanks: 0
Thanked 0 Times in 0 Posts
View rservices's Photo Album My Photos
Default Stripping a painted cement floor

I do a lot of restaurant work, actually that's all we do. Our company does general building maintenance but we do a lot of repaints, and remodeling.

I have a restaurant that has a basement floor that is in a 100+ year building. They use this area as a bar, pool tables, and private party's.

They have been painting the floor about 4 times a year for some time. (who knows with what cement paint, latex, oil)

Now they think they want to strip the paint, grind down the rough edges and acid wash.

It's about 600 to 700 sq/ft. The floor is anything but flat they have blocks under the pool tables several inches in order to level the table.

Does anyone have any suggestions on how to approach this.

Products?

Time involved (base on your experience doing similar work)?
rservices is offline   Reply With Quote

Warning: The topics covered on this site include activities in which there exists the potential for serious injury or death. PaintTalk.com DOES NOT guarantee the accuracy or completeness of any information contained on this site. Always use proper safety precaution and reference reliable outside sources before attempting any construction or remodeling task!

Sponsored Links
Advertisement
 
Old 11-08-2009, 11:03 AM   #2
Old as dirt member
 
Schmidt & Co.'s Avatar
 
Join Date: Nov 2008
Location: Chicago
Posts: 10,565
Rewards Points: 688
Thanks: 7,004
Thanked 8,440 Times in 4,284 Posts
View Schmidt & Co.'s Photo Album My Photos
Default

Bust it out and start fresh.....
__________________
Paul
Schmidt & Co. is offline   Reply With Quote
Old 11-08-2009, 01:02 PM   #3
Member
 
Join Date: Jun 2008
Posts: 14,174
Rewards Points: 2,658
Thanks: 5,206
Thanked 6,792 Times in 4,040 Posts
View ewingpainting.net's Photo Album My Photos
Default

Beadblast, grind edges and apply you coating
ewingpainting.net is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 11-08-2009, 01:04 PM   #4
Senior Member
 
johnpaint's Avatar
 
Join Date: Sep 2008
Posts: 5,187
Rewards Points: 2,000
Thanks: 1,340
Thanked 1,031 Times in 753 Posts
View johnpaint's Photo Album My Photos
Default

And 20,000 dollars later you have a nice finish
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Never argue with a fool - they will drag you down to their level, then beat you with experience.
johnpaint is offline   Reply With Quote
Old 11-08-2009, 02:02 PM   #5
Member
 
Join Date: Jun 2008
Posts: 14,174
Rewards Points: 2,658
Thanks: 5,206
Thanked 6,792 Times in 4,040 Posts
View ewingpainting.net's Photo Album My Photos
Default

You can rent a bead blaster for about 800 bucks a day. and you should be able to blast it in 4 or so hours. The coating will cost you a little under a grand. Where do you get 20 out of that Jhon?
ewingpainting.net is offline   Reply With Quote
Old 11-08-2009, 02:11 PM   #6
Senior Member
 
johnpaint's Avatar
 
Join Date: Sep 2008
Posts: 5,187
Rewards Points: 2,000
Thanks: 1,340
Thanked 1,031 Times in 753 Posts
View johnpaint's Photo Album My Photos
Default

Quote:
Originally Posted by ewingpainting.net View Post
You can rent a bead blaster for about 800 bucks a day. and you should be able to blast it in 4 or so hours. The coating will cost you a little under a grand. Where do you get 20 out of that Jhon?
Hey you are teaching me something. I didn't know you could rent a bead blaster. Do you have to rent one of those big air compressors on wheels to do the job?
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Never argue with a fool - they will drag you down to their level, then beat you with experience.
johnpaint is offline   Reply With Quote
Old 11-08-2009, 02:57 PM   #7
Member
 
Join Date: Jun 2008
Posts: 14,174
Rewards Points: 2,658
Thanks: 5,206
Thanked 6,792 Times in 4,040 Posts
View ewingpainting.net's Photo Album My Photos
Default

Your a smarty pants Johnathan
ewingpainting.net is offline   Reply With Quote
Old 11-08-2009, 03:28 PM   #8
Senior Member
 
johnpaint's Avatar
 
Join Date: Sep 2008
Posts: 5,187
Rewards Points: 2,000
Thanks: 1,340
Thanked 1,031 Times in 753 Posts
View johnpaint's Photo Album My Photos
Default

No really: I'm serious.
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Never argue with a fool - they will drag you down to their level, then beat you with experience.
johnpaint is offline   Reply With Quote
Old 11-08-2009, 03:41 PM   #9
Member
 
Join Date: Jun 2008
Posts: 14,174
Rewards Points: 2,658
Thanks: 5,206
Thanked 6,792 Times in 4,040 Posts
View ewingpainting.net's Photo Album My Photos
Default

Check out the HD rental yard. They have a lot of good stuff to rent.
ewingpainting.net is offline   Reply With Quote
Old 11-08-2009, 03:59 PM   #10
Junior Member
 
Join Date: Sep 2009
Posts: 14
Rewards Points: 10
Thanks: 0
Thanked 0 Times in 0 Posts
View rservices's Photo Album My Photos
Default

I really don't have access to that type of equipment. I told him I couldn't do it but then I started to wonder, maybe I can.

What about a large surface grinder, or some chemical warfare
rservices is offline   Reply With Quote
Old 11-08-2009, 04:05 PM   #11
Member
 
Join Date: Jun 2008
Posts: 14,174
Rewards Points: 2,658
Thanks: 5,206
Thanked 6,792 Times in 4,040 Posts
View ewingpainting.net's Photo Album My Photos
Default

The machines are the same size. Home Depot rents them. Anything smaller will take more time.
ewingpainting.net is offline   Reply With Quote
Old 11-08-2009, 07:17 PM   #12
Old as dirt member
 
Schmidt & Co.'s Avatar
 
Join Date: Nov 2008
Location: Chicago
Posts: 10,565
Rewards Points: 688
Thanks: 7,004
Thanked 8,440 Times in 4,284 Posts
View Schmidt & Co.'s Photo Album My Photos
Default

If they are painting it #4 times a year, theres a LOT of paint there to remove. Based on your description "anything but flat" I picture a very rough floor, cracking etc. I would seriously recomend busting it out or pouring a fresh slab on top. Then apply a 100% solids coating.
__________________
Paul
Schmidt & Co. is offline   Reply With Quote
Old 11-08-2009, 10:12 PM   #13
Junior Member
 
Join Date: Sep 2009
Posts: 14
Rewards Points: 10
Thanks: 0
Thanked 0 Times in 0 Posts
View rservices's Photo Album My Photos
Default

100 yr old, 6 story building the basement is at water level of a river.
It use to be a bank back in the 40's.
You should see the office (it's in the safe). The safe entrance is 7 feet tall. the door weighs tons
rservices is offline   Reply With Quote
Old 11-09-2009, 10:23 AM   #14
Senior Member
 
Join Date: Mar 2008
Location: Toledo,Oh
Posts: 579
Rewards Points: 376
Thanks: 11
Thanked 81 Times in 65 Posts
View Veith@toast.net's Photo Album My Photos
Default

You know it is heplfull if you put your locaion in your profile when you ask for help. One of us might even have one to rent you, but who knows where you live. big gripe of mine An no I don't own one but know where some are sitting
__________________
David Enterprises Inc.
Toledo, Ohio

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Veith@toast.net is offline   Reply With Quote
Old 11-09-2009, 01:18 PM   #15
Junior Member
 
Join Date: Sep 2009
Posts: 14
Rewards Points: 10
Thanks: 0
Thanked 0 Times in 0 Posts
View rservices's Photo Album My Photos
Default

I'm SE wisconsin, I attempted to edit my profile but I can't seem to figure out how. I look into it when I have more time
rservices is offline   Reply With Quote
Old 11-09-2009, 06:51 PM   #16
Senior Member
 
NACE's Avatar
 
Join Date: May 2008
Location: Fairfield, CT
Posts: 1,125
Rewards Points: 1,138
Thanks: 382
Thanked 1,033 Times in 462 Posts
View NACE's Photo Album My Photos
Default

what are the customers expectations? do they want a monolithic perfectly smooth floor? Shot blasting may prove tricky and damaging on a floor with undulations. Acid wash as in Hydrochloric acid to etch the floor, or an acid stain after coating removal? 700 sq ft can be achieved with a 16 " scarifying machine and the proper carbide blades or abrasive grinding. Depending on the coating thickness and adhesive qualities, this could be removed to bare concrete in 2 hours or less. An evaluation of the concrete profile. moisture content, psi of the concrete, expectations and durability required will determine the system. How long will they give you to install the system, how much time do they need before the floor goes back into service, and how much experience does the applicator have with high performance or acid staining installation?
NACE is offline   Reply With Quote
Old 11-10-2009, 09:06 AM   #17
 
Join Date: Apr 2008
Posts: 31
Rewards Points: 25
Thanks: 0
Thanked 1 Time in 1 Post
View zico's Photo Album My Photos
Default

We are in the process of exploring options for a local hockey rink that wants it's 3000 sq ft cement floor lobby refinished with a hockey rink motif and their logo. We are considering epoxy coats. Either doing the whole thing in an epoxy coat or painting the motif and then using a clear coat epoxy. This maybe a less expensive and durable option for the restaurant.
zico is offline   Reply With Quote
Old 11-10-2009, 10:44 PM   #18
workin
 
painting247's Avatar
 
Join Date: Mar 2009
Location: Nebraska
Posts: 298
Rewards Points: 250
Thanks: 307
Thanked 47 Times in 36 Posts
View painting247's Photo Album My Photos
Default

You could try to "soda blast but VERY expensive. IMO, you'l have to grind it all off. My recommendation would be a Shot Blaster again, expensive but will get the job done. If they are having to re-paint the floor several times a year, then obviously there is a problem. I might suggest using a poly spartic product, but be careful, if you haven't used these products before you had better know what in the hell your dealing with as this stuff sets up really quick. An inexperienced installer will find out how much fun grinding really is.
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

facebook


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
A job can be where you go to work
or where you come to LIFE.
painting247 is offline   Reply With Quote
Old 12-16-2009, 09:15 PM   #19
Painting Contractor
 
Induspray's Avatar
 
Join Date: Dec 2009
Location: Toronto, Canada
Posts: 173
Rewards Points: 150
Thanks: 25
Thanked 54 Times in 36 Posts
View Induspray's Photo Album My Photos
Default

It sounds like you have 2 issues here. First there are multiple layers of paint that have to be stripped and secondly the floor is not level.

It will come down to how much money the owners want to spend. Are they looking for you to make the floor level? or is the big priority having the floor look presentable

I will address the paint only issue first.

Its a 100 year old building so it is safe to assume there is no elevator to the basement or a loading dock door into the basement. This will eliminate the standard shotblasters as you wont get them into the basement and I can guarantee they dont have 600V 3 phase power to run them . The small electric 120V blasters are pretty useless. I would reccomend you diamond grind the floor to strip off all the existing coating, you can also rent floor grinders with a set of carbide blades called flakey Jakes that are designed to cut off thick paint coatings first so that you dont waste your diamonds on thick paint. The diamond grinder will open up the pores of the floor and give you the surface profile you need for an epoxy to adhere. You would probably be better to sub out the prep of the floor to a company that does it every day. Put down 2 coats of a 100% solids epoxy floor coatings at about 10 mils per coat and you will have a great floor. Based on everything you have described you should be able to charge your customer in the $4 to $6 per square foot. You could get this whole process done in 3 days

If the leveling is an issue and they cant afford the downtime of ripping out the old floor and repouring it then you can have a trowelled epoxy put down to level the floor. The cost will be high . For a 1/4 epoxy trowelled floor the cost is going to be around $10/foot for that small an area, so if you need it inches thick it could get expensive. (the $10 cost would include having an epoxy coating on top). This process would take 4 days. You shoudl sub this out completely as the trowelled epoxies are really tricking to do. I would probably guess that they arn't that concerned with the leveling they just want to imporove the look of the floor and can live with the pool table having blocks under it and save them selves thousands of dollars.
__________________
INDUSPRAY: Industrial Painting Contractor
Induspray is offline   Reply With Quote
Old 12-17-2009, 07:12 AM   #20
 
Join Date: Dec 2009
Posts: 40
Rewards Points: 25
Thanks: 0
Thanked 3 Times in 2 Posts
View AmericanPatch&Paint's Photo Album My Photos
Default

If they are able to pour a new layer (1.5") that is your best bet if you clean the old paint (even if it looks bare) you will affect the look of the acid,
a new layer will be way faster, cleaner and yield much better looking results.
AmericanPatch&Paint is offline   Reply With Quote
Reply

Tags
None

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Concrete Floor Hardener and Floor Coatings Picky Painter General Painting Discussion 3 10-29-2009 04:22 PM
Painted floor question Brian339 Surface Preparation and Application 15 07-12-2009 04:52 PM
Washing cement barrel roof tiles alpo Pressure Washing 1 05-23-2009 08:31 PM
Staining/painting cement Jeff.Chicago Surface Preparation and Application 4 09-08-2008 03:34 PM
Stripping vermontpainter Surface Preparation and Application 72 05-08-2008 11:41 AM


All times are GMT -4. The time now is 06:00 AM.


Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.1
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Our Pro Sites Network
ContractorTalk.com | DrywallTalk.com | ElectricianTalk.com | HVACSite.com | PlumbingZone.com | RoofingTalk.com