Caution

This is just a quick post to say that if you are considering using 'No-Nails', 'Gripfast', 'Gripfill' et cetera to glue together layers of hard expanded foam sheets for baseboards and scenic landscaping, be very sure that you won't have to cut into the layers through the product after it has gone off.

Today I started cutting into my baseboard to plant my road bridge. Blimey! I had to use a hacksaw blade and a fine pull-saw to get through the adhesive layer. A Stanley knife wouldn't touch it, and a firmer chisel struggled, it was like trying to cut bone.

Needless to say, I also used what oozed out to coat the bottom of my 'river', I think an abrasive disc will be needed, I'm dreading SWMBO's reaction to the inevitable mess!! :shock: :shock: :shock: :pedal

Poop-poop!

Doug

That's worth knowing Doug.  :thumbs

There are not many products suitable for glueing styrene based sheet material so maybe multi thicknesses are not ideal.  I wonder, would "plots" have held it or did you use and overall coating ?

Found this out when gluing HD styrene foam sheets together and trying to sculpture with a foam cutter. The label "Hard as Nails" means what it says.
Nigel

Agree with Doug and Nigel!
However I do find it is the best adhesive for fixing hard expanded foam (Celotex, Kingspan etc)

Shaun.

[user=6]Petermac[/user] wrote:

That's worth knowing Doug.  :thumbs

There are not many products suitable for glueing styrene based sheet material so maybe multi thicknesses are not ideal.  I wonder, would "plots" have held it or did you use and overall coating ?

Peter, you know me, if you are going to lay it on, do it in thick layers, like flattery. [Older ladies will accept it still with gratitude, younger ladies will instinctively know you are exaggerating and think you a kindly lecherous old buffoon.

I'm happy in either camp….

Douglas

[user=567]gastwo[/user] wrote:

Agree with Doug and Nigel!
However I do find it is the best adhesive for fixing hard expanded foam (Celotex, Kingspan etc)

Shaun.

It's not expanded foam, that's the crumbly stuff, that turns into bubbles,  the celotex,  kingspan,  etcetera are EXTRUDED foams, that type turns into dust if you saw it. 
But yes the no nails type glue is the best for the task,  I generally use the non solvent versions as I use expanded foams for some tasks. They dissolve with the solvented glues. 

Oh Celotex is not styrene it's Polyisocyanurate 

Been using some of the Kingspan over the last few weeks and I've been using decorators caulk to hold bits together. No idea how strong a bond it forms as where im using it there is no real pressure on it. Ill experiment by sticking a couple of pieces together, leave it a few days and then try pulling it apart and, or sawing through it. Ill let you know the results.  I use decorators caulk for sticking most things, plastic to plastic, plastic to foamboard, plastic to fibreboard, fibreboard to melamine etc etc. It allows you time to re position things but once it grabs, it gives a reasonable bond, is a little flexible and once set you can sand it or trim with a Stanley knife. Definately not as hard/ strong as no nails though. Quite often available for 99p a tube if you buy a box of twelve at screwfix. 

Cheers

Matt

That's worth knowing Matt.

As you say, it's cheap as chips and very versatile.  I use it for a multitude of things around the house but never thought of using it as a glue …………………… :hmm

[user=1938]The Q[/user] wrote:

[user=567]gastwo[/user] wrote:

Agree with Doug and Nigel!
However I do find it is the best adhesive for fixing hard expanded foam (Celotex, Kingspan etc)

Shaun.

It's not expanded foam, that's the crumbly stuff, that turns into bubbles,  the celotex,  kingspan,  etcetera are EXTRUDED foams, that type turns into dust if you saw it. 
But yes the no nails type glue is the best for the task,  I generally use the non solvent versions as I use expanded foams for some tasks. They dissolve with the solvented glues. 

Oh Celotex is not styrene it's Polyisocyanurate 

:oops: Stands in corner with corrected hat on… :)

I think I will try to use the caulk for the next bit, Matt, thanks for the idea,

Douglas