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Pre-finished plywood to brick. What glue to use?

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Forum topic by Lloyd Davies posted 1266 days ago 8325 views 0 times favorited 21 replies Add to Favorites Watch
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Lloyd Davies

110 posts in 1952 days


1266 days ago

Topic tags/keywords: maple joining brick glue liquid nails

Hi all,

I would like to attached a 3 ft x 10 ft pre-finished 1/2 inch maple plywood to partially cover a brick fireplace. Does anyone have any suggestions as to how to do it? I was thinking of some kind of “liquid nails” type glue.

Thanks in advance, Lloyd

-- Northern California http://www.lloydus.com


21 replies so far

View Don's profile

Don

506 posts in 1699 days


#1 posted 1266 days ago

Liquid nails will probobly hold it fine but I would use some concrete screws just because it makes it a whole lot easier to undo later on it you need to.

-- Don - I wood work if I could. Redmond WA.

View dpwalker's profile

dpwalker

265 posts in 1457 days


#2 posted 1266 days ago

I used silocone adhesive for plywood to brick on a wall. It came in a tube like caulk. Didn’t use any fasteners. The wall has been up for about 7 years with no problems.

-- You have not really lived until you do something for someone who can never repay you.

View ScottN's profile

ScottN

259 posts in 1306 days


#3 posted 1266 days ago

You could glue( what dpwalker described) and anchor screw some 1×2’s 16” oc. Then pin nail plywood using a finish nailer.

-- New Auburn,WI

View David Grimes's profile

David Grimes

2072 posts in 1266 days


#4 posted 1266 days ago

So your pre-finished piece is going directly to the masonry only and there is no framework or sleepers desired. Having done this many times, I will recommend that you glue (Power Grab, Ply Seam Seal, or Liguid Nails) and screw (Tapcons). If the tapcons would ruin the party (going through the finished piece), then go with one of the proper mastics.

-- If you're going to stir the pot, think BIG spoon or SMALL boat paddle. David Grimes, Georgia

View Lloyd Davies's profile

Lloyd Davies

110 posts in 1952 days


#5 posted 1265 days ago

@david grimes. What do you mean “one of the proper mastics”?

I am wanting to go screw less for aesthetic purposes.

-- Northern California http://www.lloydus.com

View reggiek's profile

reggiek

2240 posts in 1896 days


#6 posted 1265 days ago

A good construction grade adhesive like Liquid Nails….there are several kinds they sell at the borg that come in caulk gun cartridges. I have used that to stick things to masonry and stucco. There are also masonry nails….or screws (you need a good hammer drill for the screws).....Depending where you are you also need to look at code for proper attaching….if it is wet area you definitely need to use a weather proof adhesive.

Remember that wood and masonry expand and contract differently….you need to make sure your adhesive is plyable….contains silicone or similar.

-- Woodworking.....My small slice of heaven!

View David Grimes's profile

David Grimes

2072 posts in 1266 days


#7 posted 1265 days ago

Lloyd, Sorry, Mastic = glue or adhesive…. of which there are many kinds, but only certain ones are appropriate such as “(Power Grab, Poly Seam Seal, or Liguid Nails)” to name a few. Reggiek is correct that bi-material expansion may eventually let loose if the mastic/glue/adhesive chosen does not adhere to both surfaces (wood and masonry in your case) AND that it has some flex so that the one that moves the most doesn’t let loose of the other material (with the adhesive staying with the one that bonds best with the adhesive).

One other factor to consider is the chosen adhesives property of initial tack or grab. I threw Power Grab in for that reason as it does just that.

I have used all three of the ones I listed and have had intended results with each.

Regards,

David Grimes

-- If you're going to stir the pot, think BIG spoon or SMALL boat paddle. David Grimes, Georgia

View HallTree's profile

HallTree

5661 posts in 2394 days


#8 posted 1265 days ago

Check-out:
http://www.thistothat.com/

-- "Hold on to instruction, do not let it go; guard it well, for it is your life" Solomon

View Gregn's profile

Gregn

1642 posts in 1610 days


#9 posted 1265 days ago

I have glued wood to concrete with polyurethane glue (gorilla glue) with good results.

-- I don't make mistakes, I have great learning lessons, Greg

View David Grimes's profile

David Grimes

2072 posts in 1266 days


#10 posted 1265 days ago

Halltree, Nice site (ThistoThat.com), but couldn’t help but note that brick, block and/or mortar are not listed.

Not to beat an answered horse to death, but technically it would probably be best to prime the brick with an enamel masonry filler and/or high adhesion primer, let dry, then use nearly anything to bond the brick to the wood. Probably overkill.

We’ve used the high adhesion primer from Sherwin to get paint to stick to laminate (without sanding or even scuffing required) in a shoe department remodel at one of the big boxes at the local mall. It was and is there until they do another color change. No peeling or delamination at all.

FWIW

-- If you're going to stir the pot, think BIG spoon or SMALL boat paddle. David Grimes, Georgia

View allmyfingers's profile

allmyfingers

40 posts in 1272 days


#11 posted 1265 days ago

why would you want to cover a fireplace in the first place?

-- I cut it 3 times and it was still too short?!?

View thewoodmaster's profile

thewoodmaster

55 posts in 1819 days


#12 posted 1265 days ago

I would use PL Premium. Both HD and lowes sell it. I’ve used this glue on brick and it holds well.

-- dan "insert pithy woodworking coment here"

View bb71's profile

bb71

42 posts in 1673 days


#13 posted 1265 days ago

+1 on the PL Premium. Its excellent construction adhesive. Use it all the time.

View Pop's profile

Pop

419 posts in 2572 days


#14 posted 1264 days ago

Just a note of caution. When you mix masonry & wood you can have a termite problem.

Pop

-- One who works with his hands is a laborer, his hands & head A craftsman, his hands, head & heart a artist

View HallTree's profile

HallTree

5661 posts in 2394 days


#15 posted 1264 days ago

David, thanks for the heads up on ‘couldn’t help but note that brick, block and/or mortar are not listed’ on the post I made about ‘This to That’. I got on their site and shared your comment .

-- "Hold on to instruction, do not let it go; guard it well, for it is your life" Solomon

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