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Forum topic by dedalo posted 07-20-2010 06:25 PM 1210 views 0 times favorited 11 replies Add to Favorites Watch
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dedalo

173 posts in 2357 days


07-20-2010 06:25 PM

Topic tags/keywords: laminate tablesaw

Hi LJs!

I’m planning an upgrade for my table saw ( http://lumberjocks.com/dedalo/blog/16393 ) I already have the aluminum profiles and the incra positioner installed, so now facing the tabletop construction. I was planning to buid somthing like MDF+masonite+plastic laminate with some hardwood on the sides. But I don’t have anything to glue MDF with the masonite or the plastic laminate… I don’t have a vacuum system, nor a press, which is the best way to achieve this?

thanks for youer help!

-- http://carpinteriaenargentina.blogspot.com


11 replies so far

View PurpLev's profile

PurpLev

8523 posts in 3108 days


#1 posted 07-20-2010 06:44 PM

use contact cement. you don’t need a vacuum press – this is not veneer. the contact cement will bond the second the 2 layers come in contact with one another – google contact cement to see how to use it (you’ll need to sticker the 2 layers you are gluing and remove one stick at a time to make the contact and bond them together).

for what it’s worth – you don’t really need the masonite. MDF and melamine will be good enough, although usually MDF on it’s own can sag over time depending on size. you may want to construct some sort of ribs underneath to support it in the long run and keep it flat for the purpose of a TS top.

-- ㊍ When in doubt - There is no doubt - Go the safer route.

View Rick  Dennington's profile

Rick Dennington

5170 posts in 2654 days


#2 posted 07-20-2010 06:59 PM

Greetings dedalo,

You don’t need a vacumn to do this….
Get a bottle or quart of contact cement (like 3M).Cut the laminate just a little bigger than your piece you want to laminate about… a 1/2” so you’ll have some over-hang all the way around the MDF. Spread some contact cement on the underside of the laminate(rough side), and also on the MDF, making sure it’s covered

good all over…. Let both pieces dry for about 20 minutes, till they get tacky feeling. Now lay down some dowel rods spaced out evenly across the MDF, or just use some 1/2” thick shims (whichever). Lay the laminate on the dowels, and having enough over-hang all the way around(be careful),pull the rods out one at a time letting the laminate stick to the MDF. Once all the rods are out, roll the laminate with a J-roller, or even a 2×4, to get the air bubbles out. Go from the middle out to the edges all over, checking for flat… You’re done…. Take a flush-trim bit in your router with a ballbearing on the bottom to follow the conture of the MDF, and trim it off… You can now leave it like it is, or put a little chamfer or roundover on the edge…. that’s it, you’re set to go…....

-- At my age, an "all--nighter" is not having to get up and pee...!!!

View Rick  Dennington's profile

Rick Dennington

5170 posts in 2654 days


#3 posted 07-20-2010 07:05 PM

WOOOOPS….... Looks like Purplev has beat me to the punch….. I guess I type too slow….again.. Well at least you’re covered good now…... lol.

-- At my age, an "all--nighter" is not having to get up and pee...!!!

View vicrider's profile

vicrider

179 posts in 2358 days


#4 posted 07-20-2010 07:19 PM

yeah, I agree with PurpLev, masonite or other laminate glued to an mdf substrate made with a boxed frame. Water based contact cement is my recommendation also. the water based cement is easy to use and not as volatile as the ‘hot’ stuff. Doesn’t stink and rubs off your fingers pretty easy. Pour it on and spread it to a thin coat with a wide putty knife. use two coats on each side. Position an oversized piece of laminate with stickers, press it down starting on one end, and trim off the excess with a trim router.

I think the laminate adds ‘wearability’ to the top. I use my table extension (router installed also) for a work space and the laminate resists spilled glue and thinners.

-- vicrider

View dedalo's profile

dedalo

173 posts in 2357 days


#5 posted 07-20-2010 07:22 PM

thanks a lot guys! will let you know how it comes out!

-- http://carpinteriaenargentina.blogspot.com

View vicrider's profile

vicrider

179 posts in 2358 days


#6 posted 07-20-2010 07:28 PM

BTW, check with a local cabinet maker. I once bought a 1 1/4” thick piece of double laminated MDF for peanuts (well cheap anyway) from the leftovers stock of a local guy. It took most of the work out of making a nice router table and fence.

-- vicrider

View Gary Lucas's profile

Gary Lucas

74 posts in 2368 days


#7 posted 07-20-2010 08:23 PM

Just a thought…you should also apply laminate on the other side too. Having laminate only on one side may cause the MDF to want to bend over time. This way ( having laminate on both sides, the MDF is balanced.

-- Go create sawdust

View dedalo's profile

dedalo

173 posts in 2357 days


#8 posted 07-20-2010 08:24 PM

Thanks gary! my plans had this but I whouldn’t thougt of that…

-- http://carpinteriaenargentina.blogspot.com

View Kent Shepherd's profile

Kent Shepherd

2716 posts in 2746 days


#9 posted 07-20-2010 11:13 PM

For what it’s worth, you might consider not using the plastic laminate. I have done this a lot in the past, but often have had issues with splinters getting under the laminate and ripping it up. When it starts to happen it only gets worse, and there is no way to fix it. I really like the look of the laminate, but I’m wondering if it is worth it.

Just the MDF or Melamine alone will make a good top.I use paste wax for surfaces that I want to slide lumber across. If you double up 3/4” MDF, don’t glue it together (Screw it together—Maybe from the bottom). Then you simply change the top piece to keep everything in good shape as needed.

If you go with laminate, you have great information given already.

-- http://shepherdtoolandsupply.com/

View dedalo's profile

dedalo

173 posts in 2357 days


#10 posted 07-20-2010 11:39 PM

thanks kent, I like the keep it simple aproach… i can always laminate in the future too…

its great to have all this sincere advice from all you guys, I really apreciate it…

-- http://carpinteriaenargentina.blogspot.com

View dedalo's profile

dedalo

173 posts in 2357 days


#11 posted 07-21-2010 12:00 AM

I have to admit, today I requested price for a granite top… but it was arround USD 150, too much for now… but… i would be great isn’t it?

-- http://carpinteriaenargentina.blogspot.com

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